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Message-ID: <20241206151819.GA3949140@google.com>
Date: Fri, 6 Dec 2024 15:18:19 +0000
From: Joel Fernandes <joel@...lfernandes.org>
To: Ilya Maximets <i.maximets@....org>
Cc: LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Juri Lelli <juri.lelli@...hat.com>,
	Vincent Guittot <vincent.guittot@...aro.org>, vineethrp@...gle.com,
	shraash@...gle.com, vineeth@...byteword.org
Subject: Re: [v6.12] WARNING: at kernel/sched/deadline.c:1995
 enqueue_dl_entity (task blocked for more than 28262 seconds)

On Wed, Dec 04, 2024 at 01:47:44PM +0100, Ilya Maximets wrote:
> Hi.  It seems like I'm hitting some bug in the scheduler.
> 
> I'm running some tests with Open vSwitch on v6.12 kernel and some time
> 5 to 8 hours down the line I'm getting task blocked splats and I also
> have a WARNING triggered in the scheduler code right before that:
> 
> Dec  3 22:19:55 kernel: WARNING: CPU: 27 PID: 3391271 at kernel/sched/deadline.c:1995 enqueue_dl_entity
> 
> I have a lot of processes (kernel threads and userpsace threads) stuck
> in DN, Ds, D+ and D states.  It feels like IO tasks are being scheduled,
> but scheduler never picks them up or they are not being scheduled at all
> for whatever reason, and threads waiting on these tasks are stuck.
> 
> Dec  3 22:22:45 kernel: INFO: task khugepaged:330 blocked for more than 122 seconds.
> Dec  3 22:22:45 kernel: INFO: task ovs-monitor-ips:3479822 blocked for more than 122 seconds.
> Dec  3 22:22:45 kernel: INFO: task mv:3483072 blocked for more than 122 seconds.
> Dec  3 22:24:48 kernel: INFO: task khugepaged:330 blocked for more than 245 seconds.
> Dec  3 22:24:48 kernel: INFO: task ovs-monitor-ips:3479822 blocked for more than 245 seconds.
> Dec  3 22:24:48 kernel: INFO: task ovs-monitor-ips:3480383 blocked for more than 122 seconds.
> Dec  3 22:24:48 kernel: INFO: task ovs-monitor-ips:3481787 blocked for more than 122 seconds.
> Dec  3 22:24:48 kernel: INFO: task ovs-monitor-ips:3482631 blocked for more than 122 seconds.
> Dec  3 22:24:48 kernel: INFO: task mv:3483072 blocked for more than 245 seconds.
> Dec  3 22:26:51 kernel: INFO: task khugepaged:330 blocked for more than 368 seconds.
> ...
> Dec  4 06:11:45 kernel: INFO: task khugepaged:330 blocked for more than 28262 seconds.
> 
> I have two separate instances where this behavior is reproduced.  One is mostly
> around file systems, the other was more severe as multiple kernel threads got
> stuck in netlink code.  The traces do not have much in common, except that most
> of blocked tasks are in scheduling.  The system is also idle, nothing is really
> running.  Some of these tasks are holding resources that make other tasks to
> block on those resources as well.
> 
> I seem to be able to reproduce the issue, but it takes 5-8 hours to do so.
>

CC'ing a few more from my team as well.

We haven't seen such an issue with the DL server, but we are also testing on
slightly older kernels.

Its coming from:
	WARN_ON_ONCE(on_dl_rq(dl_se));

To CC'd Googlers, does this issue look familiar at all?

thanks,

 - Joel

 

> Best regards, Ilya Maximets.
> 
> 
> 
> Below are logs from two instances.  The first one is from v6.12 + one small
> unrelated patch for network namespaces.  The second one is from pure v6.12,
> but it's not decoded as I lost the vmlinux from that run, the system was also
> completely unresponsive when the issue was hit.
> 
> =====================
> THE FIST DECODED LOG:
> =====================
> 
> Dec  3 22:19:55 kernel: WARNING: CPU: 27 PID: 3391271 at kernel/sched/deadline.c:1995 enqueue_dl_entity (kernel/sched/deadline.c:1995 (discriminator 1)) 
> Dec  3 22:19:55 kernel: Modules linked in: vport_vxlan vxlan vport_gre ip_gre ip_tunnel gre vport_geneve geneve ip6_udp_tunnel udp_tunnel openvswitch nf_conncount nf_nat tls esp4 veth nfnetlink_cttimeout nfnetlink nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 intel_rapl_msr intel_rapl_common rfkill intel_uncore_frequency_common skx_edac_common nfit libnvdimm kvm_intel kvm rapl vfat fat iTCO_wdt iTCO_vendor_support virtio_gpu virtio_dma_buf i2c_i801 drm_shmem_helper lpc_ich pcspkr i2c_smbus virtio_balloon drm_kms_helper joydev drm xfs libcrc32c ahci crct10dif_pclmul libahci crc32_pclmul virtio_net crc32c_intel libata ghash_clmulni_intel net_failover virtio_blk virtio_console failover serio_raw sunrpc dm_mirror dm_region_hash dm_log dm_mod fuse [last unloaded: ip6_udp_tunnel]
> Dec  3 22:19:55 kernel: CPU: 27 UID: 0 PID: 3391271 Comm: kworker/27:1 Kdump: loaded Not tainted 6.12.0+ #77
> Dec  3 22:19:55 kernel: Hardware name: Red Hat KVM/RHEL, BIOS 1.16.1-1.el9 04/01/2014
> Dec  3 22:19:55 kernel: Workqueue:  0x0 (mm_percpu_wq)
> Dec  3 22:19:55 kernel: RIP: 0010:enqueue_dl_entity (kernel/sched/deadline.c:1995 (discriminator 1)) 
> Dec  3 22:19:55 kernel: Code: d2 0f 89 14 fd ff ff e9 0d fb ff ff 45 85 ed 0f
>                               84 65 fd ff ff 5b 44 89 e6 48 89 ef 5d 41 5c 41
>                               5d 41 5e 41 5f e9 76 c4 ff ff <0f> 0b e9 bd f9 ff
>                               ff 0f 0b e9 1f fb ff ff 8b 83 b0 0a 00 00 48 8b
> All code
> ========
>    0:   d2 0f                   rorb   %cl,(%rdi)
>    2:   89 14 fd ff ff e9 0d    mov    %edx,0xde9ffff(,%rdi,8)
>    9:   fb                      sti    
>    a:   ff                      (bad)  
>    b:   ff 45 85                incl   -0x7b(%rbp)
>    e:   ed                      in     (%dx),%eax
>    f:   0f 84 65 fd ff ff       je     0xfffffffffffffd7a
>   15:   5b                      pop    %rbx
>   16:   44 89 e6                mov    %r12d,%esi
>   19:   48 89 ef                mov    %rbp,%rdi
>   1c:   5d                      pop    %rbp
>   1d:   41 5c                   pop    %r12
>   1f:   41 5d                   pop    %r13
>   21:   41 5e                   pop    %r14
>   23:   41 5f                   pop    %r15
>   25:   e9 76 c4 ff ff          jmpq   0xffffffffffffc4a0
>   2a:*  0f 0b                   ud2             <-- trapping instruction
>   2c:   e9 bd f9 ff ff          jmpq   0xfffffffffffff9ee
>   31:   0f 0b                   ud2    
>   33:   e9 1f fb ff ff          jmpq   0xfffffffffffffb57
>   38:   8b 83 b0 0a 00 00       mov    0xab0(%rbx),%eax
>   3e:   48                      rex.W
>   3f:   8b                      .byte 0x8b
> 
> Code starting with the faulting instruction
> ===========================================
>    0:   0f 0b                   ud2    
>    2:   e9 bd f9 ff ff          jmpq   0xfffffffffffff9c4
>    7:   0f 0b                   ud2    
>    9:   e9 1f fb ff ff          jmpq   0xfffffffffffffb2d
>    e:   8b 83 b0 0a 00 00       mov    0xab0(%rbx),%eax
>   14:   48                      rex.W
>   15:   8b                      .byte 0x8b
> Dec  3 22:19:55 kernel: RSP: 0018:ffffacba8d87fbb8 EFLAGS: 00010086
> Dec  3 22:19:55 kernel: RAX: 0000000000000001 RBX: ffff8f5e3f7b65e8 RCX: 0000000000000000
> Dec  3 22:19:55 kernel: RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffff8f5e3f7b65e8
> Dec  3 22:19:55 kernel: RBP: ffff8f5e3f7b65e8 R08: 0000000000000000 R09: 0000000000000000
> Dec  3 22:19:55 kernel: R10: ffff8f5e3f7b5d00 R11: ffff8f4f132ed610 R12: 0000000000000001
> Dec  3 22:19:55 kernel: R13: 0000000000000001 R14: 00000000002dc6c0 R15: 0000000000000000
> Dec  3 22:19:55 kernel: FS:  0000000000000000(0000) GS:ffff8f5e3f780000(0000) knlGS:0000000000000000
> Dec  3 22:19:55 kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> Dec  3 22:19:55 kernel: CR2: 00007faf752d93e0 CR3: 000000011879a001 CR4: 0000000000772ef0
> Dec  3 22:19:55 kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> Dec  3 22:19:55 kernel: DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
> Dec  3 22:19:55 kernel: PKRU: 55555554
> Dec  3 22:19:55 kernel: Call Trace:
> Dec  3 22:19:55 kernel: <TASK>
> Dec  3 22:19:55 kernel: ? __warn (kernel/panic.c:748) 
> Dec  3 22:19:55 kernel: ? enqueue_dl_entity (kernel/sched/deadline.c:1995 (discriminator 1)) 
> Dec  3 22:19:55 kernel: ? report_bug (lib/bug.c:201 lib/bug.c:219) 
> Dec  3 22:19:55 kernel: ? handle_bug (arch/x86/kernel/traps.c:285) 
> Dec  3 22:19:55 kernel: ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
> Dec  3 22:19:55 kernel: ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
> Dec  3 22:19:55 kernel: ? enqueue_dl_entity (kernel/sched/deadline.c:1995 (discriminator 1)) 
> Dec  3 22:19:55 kernel: dl_server_start (kernel/sched/deadline.c:1651) 
> Dec  3 22:19:55 kernel: enqueue_task_fair (kernel/sched/sched.h:2745 kernel/sched/fair.c:7048) 
> Dec  3 22:19:55 kernel: enqueue_task (kernel/sched/core.c:2020) 
> Dec  3 22:19:55 kernel: activate_task (kernel/sched/core.c:2069) 
> Dec  3 22:19:55 kernel: sched_balance_rq (kernel/sched/fair.c:9642 kernel/sched/fair.c:9676 kernel/sched/fair.c:11753) 
> Dec  3 22:19:55 kernel: sched_balance_newidle (kernel/sched/fair.c:12799) 
> Dec  3 22:19:55 kernel: pick_next_task_fair (kernel/sched/fair.c:8950) 
> Dec  3 22:19:55 kernel: __pick_next_task (kernel/sched/core.c:5972) 
> Dec  3 22:19:55 kernel: __schedule (kernel/sched/core.c:6647) 
> Dec  3 22:19:55 kernel: schedule (./arch/x86/include/asm/preempt.h:84 kernel/sched/core.c:6771 kernel/sched/core.c:6785) 
> Dec  3 22:19:55 kernel: worker_thread (kernel/workqueue.c:3344) 
> Dec  3 22:19:55 kernel: ? __pfx_worker_thread (kernel/workqueue.c:3337) 
> Dec  3 22:19:55 kernel: kthread (kernel/kthread.c:389) 
> Dec  3 22:19:55 kernel: ? __pfx_kthread (kernel/kthread.c:342) 
> Dec  3 22:19:55 kernel: ret_from_fork (arch/x86/kernel/process.c:147) 
> Dec  3 22:19:55 kernel: ? __pfx_kthread (kernel/kthread.c:342) 
> Dec  3 22:19:55 kernel: ret_from_fork_asm (arch/x86/entry/entry_64.S:257) 
> Dec  3 22:19:55 kernel: </TASK>
> Dec  3 22:19:55 kernel: ---[ end trace 0000000000000000 ]---
> Dec  3 22:19:55 kernel: ovs-p-13: entered promiscuous mode
> Dec  3 22:22:45 kernel: INFO: task khugepaged:330 blocked for more than 122 seconds.
> Dec  3 22:22:45 kernel:      Tainted: G        W          6.12.0+ #77
> Dec  3 22:22:45 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> Dec  3 22:22:45 kernel: task:khugepaged      state:D stack:0     pid:330   tgid:330   ppid:2      flags:0x00004000
> Dec  3 22:22:45 kernel: Call Trace:
> Dec  3 22:22:45 kernel: <TASK>
> Dec  3 22:22:45 kernel: __schedule (kernel/sched/core.c:5328 kernel/sched/core.c:6693) 
> Dec  3 22:22:45 kernel: schedule (./arch/x86/include/asm/preempt.h:84 kernel/sched/core.c:6771 kernel/sched/core.c:6785) 
> Dec  3 22:22:45 kernel: schedule_timeout (kernel/time/timer.c:2592) 
> Dec  3 22:22:45 kernel: ? kvm_sched_clock_read (arch/x86/kernel/kvmclock.c:91) 
> Dec  3 22:22:45 kernel: ? sched_clock (./arch/x86/include/asm/preempt.h:94 arch/x86/kernel/tsc.c:285) 
> Dec  3 22:22:45 kernel: ? sched_clock_cpu (kernel/sched/clock.c:394) 
> Dec  3 22:22:45 kernel: ? __smp_call_single_queue (kernel/smp.c:115 kernel/smp.c:411) 
> Dec  3 22:22:45 kernel: __wait_for_common (kernel/sched/completion.c:95 kernel/sched/completion.c:116) 
> Dec  3 22:22:45 kernel: ? __pfx_schedule_timeout (kernel/time/timer.c:2577) 
> Dec  3 22:22:45 kernel: __flush_work (kernel/workqueue.c:4222) 
> Dec  3 22:22:45 kernel: ? __pfx_wq_barrier_func (kernel/workqueue.c:3718) 
> Dec  3 22:22:45 kernel: __lru_add_drain_all (mm/swap.c:873 (discriminator 3)) 
> Dec  3 22:22:45 kernel: khugepaged (mm/khugepaged.c:2499 mm/khugepaged.c:2571) 
> Dec  3 22:22:45 kernel: ? __pfx_khugepaged (mm/khugepaged.c:2564) 
> Dec  3 22:22:45 kernel: kthread (kernel/kthread.c:389) 
> Dec  3 22:22:45 kernel: ? __pfx_kthread (kernel/kthread.c:342) 
> Dec  3 22:22:45 kernel: ret_from_fork (arch/x86/kernel/process.c:147) 
> Dec  3 22:22:45 kernel: ? __pfx_kthread (kernel/kthread.c:342) 
> Dec  3 22:22:45 kernel: ret_from_fork_asm (arch/x86/entry/entry_64.S:257) 
> Dec  3 22:22:45 kernel: </TASK>
> Dec  3 22:22:45 kernel: INFO: task ovs-monitor-ips:3479822 blocked for more than 122 seconds.
> Dec  3 22:22:45 kernel:      Tainted: G        W          6.12.0+ #77
> Dec  3 22:22:45 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> Dec  3 22:22:45 kernel: task:ovs-monitor-ips state:D stack:0     pid:3479822 tgid:3479822 ppid:1      flags:0x00000002
> Dec  3 22:22:45 kernel: Call Trace:
> Dec  3 22:22:45 kernel: <TASK>
> Dec  3 22:22:45 kernel: __schedule (kernel/sched/core.c:5328 kernel/sched/core.c:6693) 
> Dec  3 22:22:45 kernel: ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/paravirt.h:589 ./arch/x86/include/asm/qspinlock.h:57 ./include/linux/spinlock.h:204 ./include/linux/spinlock_api_smp.h:150 kernel/locking/spinlock.c:194) 
> Dec  3 22:22:45 kernel: schedule (./arch/x86/include/asm/preempt.h:84 kernel/sched/core.c:6771 kernel/sched/core.c:6785) 
> Dec  3 22:22:45 kernel: io_schedule (kernel/sched/core.c:7552 kernel/sched/core.c:7578) 
> Dec  3 22:22:45 kernel: folio_wait_bit_common (mm/filemap.c:1301) 
> Dec  3 22:22:45 kernel: ? xas_load (./include/linux/xarray.h:175 ./include/linux/xarray.h:1264 lib/xarray.c:240) 
> Dec  3 22:22:45 kernel: ? __pfx_wake_page_function (mm/filemap.c:1117) 
> Dec  3 22:22:45 kernel: folio_wait_writeback (./arch/x86/include/asm/bitops.h:206 ./arch/x86/include/asm/bitops.h:238 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/page-flags.h:555 mm/page-writeback.c:3187) 
> Dec  3 22:22:45 kernel: truncate_inode_partial_folio (./arch/x86/include/asm/bitops.h:206 ./arch/x86/include/asm/bitops.h:238 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/page-flags.h:822 ./include/linux/page-flags.h:843 ./include/linux/mm.h:1115 ./include/linux/mm.h:2137 mm/truncate.c:209) 
> Dec  3 22:22:45 kernel: truncate_inode_pages_range (mm/truncate.c:354) 
> Dec  3 22:22:45 kernel: ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/paravirt.h:589 ./arch/x86/include/asm/qspinlock.h:57 ./include/linux/spinlock.h:204 ./include/linux/spinlock_api_smp.h:150 kernel/locking/spinlock.c:194) 
> Dec  3 22:22:45 kernel: ? poll_freewait (fs/select.c:140 (discriminator 3)) 
> Dec  3 22:22:45 kernel: ? do_select (fs/select.c:612) 
> Dec  3 22:22:45 kernel: ? __pfx_pollwake (fs/select.c:209) 
> Dec  3 22:22:45 kernel: ? __pfx_pollwake (fs/select.c:209) 
> Dec  3 22:22:45 kernel: ? down_read (./arch/x86/include/asm/preempt.h:79 kernel/locking/rwsem.c:1246 kernel/locking/rwsem.c:1261 kernel/locking/rwsem.c:1526) 
> Dec  3 22:22:45 kernel: ? unmap_mapping_range (mm/memory.c:3873) 
> Dec  3 22:22:45 kernel: truncate_pagecache (mm/truncate.c:728) 
> Dec  3 22:22:45 kernel: xfs_setattr_size+0x139/0x410 xfs
> Dec  3 22:22:45 kernel: xfs_vn_setattr+0x78/0x140 xfs
> Dec  3 22:22:45 kernel: notify_change (fs/attr.c:503) 
> Dec  3 22:22:45 kernel: ? do_truncate (./include/linux/fs.h:820 fs/open.c:66) 
> Dec  3 22:22:45 kernel: do_truncate (./include/linux/fs.h:820 fs/open.c:66) 
> Dec  3 22:22:45 kernel: do_open (fs/namei.c:3395 fs/namei.c:3778) 
> Dec  3 22:22:45 kernel: path_openat (fs/namei.c:3933) 
> Dec  3 22:22:45 kernel: ? memcg_list_lru_alloc (mm/list_lru.c:475 mm/list_lru.c:489) 
> Dec  3 22:22:45 kernel: do_filp_open (fs/namei.c:3960) 
> Dec  3 22:22:45 kernel: ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/paravirt.h:589 ./arch/x86/include/asm/qspinlock.h:57 ./include/linux/spinlock.h:204 ./include/linux/spinlock_api_smp.h:150 kernel/locking/spinlock.c:194) 
> Dec  3 22:22:45 kernel: ? __skb_try_recv_datagram (net/core/datagram.c:267) 
> Dec  3 22:22:45 kernel: ? kmem_cache_alloc_noprof (mm/slub.c:4115 mm/slub.c:4141) 
> Dec  3 22:22:45 kernel: do_sys_openat2 (fs/open.c:1415) 
> Dec  3 22:22:45 kernel: __x64_sys_openat (fs/open.c:1441) 
> Dec  3 22:22:45 kernel: do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
> Dec  3 22:22:45 kernel: ? unix_stream_recvmsg (net/unix/af_unix.c:2997) 
> Dec  3 22:22:45 kernel: ? __pfx_unix_stream_read_actor (net/unix/af_unix.c:2957) 
> Dec  3 22:22:45 kernel: ? sock_recvmsg (net/socket.c:1051 net/socket.c:1073) 
> Dec  3 22:22:45 kernel: ? __sys_recvfrom (net/socket.c:2265) 
> Dec  3 22:22:45 kernel: ? __pte_offset_map (./include/linux/pgtable.h:324 ./include/linux/pgtable.h:594 mm/pgtable-generic.c:289) 
> Dec  3 22:22:45 kernel: ? _raw_spin_unlock (./arch/x86/include/asm/paravirt.h:589 ./arch/x86/include/asm/qspinlock.h:57 ./include/linux/spinlock.h:204 ./include/linux/spinlock_api_smp.h:142 kernel/locking/spinlock.c:186) 
> Dec  3 22:22:45 kernel: ? do_wp_page (./include/linux/vmstat.h:75 mm/memory.c:3263 mm/memory.c:3731) 
> Dec  3 22:22:45 kernel: ? __handle_mm_fault (mm/memory.c:5909) 
> Dec  3 22:22:45 kernel: ? syscall_exit_work (./include/linux/audit.h:357 kernel/entry/common.c:166) 
> Dec  3 22:22:45 kernel: ? __count_memcg_events (mm/memcontrol.c:573 mm/memcontrol.c:836) 
> Dec  3 22:22:45 kernel: ? handle_mm_fault (mm/memory.c:5951 mm/memory.c:6103) 
> Dec  3 22:22:45 kernel: ? do_user_addr_fault (./include/linux/mm.h:730 arch/x86/mm/fault.c:1340) 
> Dec  3 22:22:45 kernel: ? clear_bhb_loop (arch/x86/entry/entry_64.S:1539) 
> Dec  3 22:22:45 kernel: ? clear_bhb_loop (arch/x86/entry/entry_64.S:1539) 
> Dec  3 22:22:45 kernel: ? clear_bhb_loop (arch/x86/entry/entry_64.S:1539) 
> Dec  3 22:22:45 kernel: entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
> Dec  3 22:22:45 kernel: RIP: 0033:0x7f8537cfd70b
> Dec  3 22:22:45 kernel: RSP: 002b:00007fff841fec70 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
> Dec  3 22:22:45 kernel: RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f8537cfd70b
> Dec  3 22:22:45 kernel: RDX: 0000000000080241 RSI: 00007f853707d290 RDI: 00000000ffffff9c
> Dec  3 22:22:45 kernel: RBP: 00007f853707d290 R08: 0000000000000000 R09: 0000000000000000
> Dec  3 22:22:45 kernel: R10: 00000000000001b6 R11: 0000000000000246 R12: 0000000000080241
> Dec  3 22:22:45 kernel: R13: 00007f85371b4ea0 R14: 0000000000080241 R15: 0000000000000000
> Dec  3 22:22:45 kernel: </TASK>
> Dec  3 22:22:45 kernel: INFO: task mv:3483072 blocked for more than 122 seconds.
> Dec  3 22:22:45 kernel:      Tainted: G        W          6.12.0+ #77
> Dec  3 22:22:45 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> Dec  3 22:22:45 kernel: task:mv              state:D stack:0     pid:3483072 tgid:3483072 ppid:3479428 flags:0x00000002
> Dec  3 22:22:45 kernel: Call Trace:
> Dec  3 22:22:45 kernel: <TASK>
> Dec  3 22:22:45 kernel: __schedule (kernel/sched/core.c:5328 kernel/sched/core.c:6693) 
> Dec  3 22:22:45 kernel: schedule (./arch/x86/include/asm/preempt.h:84 kernel/sched/core.c:6771 kernel/sched/core.c:6785) 
> Dec  3 22:22:45 kernel: io_schedule (kernel/sched/core.c:7552 kernel/sched/core.c:7578) 
> Dec  3 22:22:45 kernel: folio_wait_bit_common (mm/filemap.c:1301) 
> Dec  3 22:22:45 kernel: ? xas_load (./include/linux/xarray.h:175 ./include/linux/xarray.h:1264 lib/xarray.c:240) 
> Dec  3 22:22:45 kernel: ? __pfx_wake_page_function (mm/filemap.c:1117) 
> Dec  3 22:22:45 kernel: folio_wait_writeback (./arch/x86/include/asm/bitops.h:206 ./arch/x86/include/asm/bitops.h:238 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/page-flags.h:555 mm/page-writeback.c:3187) 
> Dec  3 22:22:45 kernel: truncate_inode_partial_folio (./arch/x86/include/asm/bitops.h:206 ./arch/x86/include/asm/bitops.h:238 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/page-flags.h:822 ./include/linux/page-flags.h:843 ./include/linux/mm.h:1115 ./include/linux/mm.h:2137 mm/truncate.c:209) 
> Dec  3 22:22:45 kernel: truncate_inode_pages_range (mm/truncate.c:354) 
> Dec  3 22:22:45 kernel: ? xfs_iunlock+0x108/0x200 xfs
> Dec  3 22:22:45 kernel: ? xfs_rename+0x368/0x990 xfs
> Dec  3 22:22:45 kernel: ? fsnotify_move (./include/linux/fsnotify.h:72 ./include/linux/fsnotify.h:64 ./include/linux/fsnotify.h:238) 
> Dec  3 22:22:45 kernel: ? _raw_spin_unlock (./arch/x86/include/asm/paravirt.h:589 ./arch/x86/include/asm/qspinlock.h:57 ./include/linux/spinlock.h:204 ./include/linux/spinlock_api_smp.h:142 kernel/locking/spinlock.c:186) 
> Dec  3 22:22:45 kernel: ? locked_inode_to_wb_and_lock_list (fs/fs-writeback.c:355) 
> Dec  3 22:22:45 kernel: evict (fs/inode.c:728) 
> Dec  3 22:22:45 kernel: ? fsnotify_destroy_marks (fs/notify/mark.c:923) 
> Dec  3 22:22:45 kernel: ? _atomic_dec_and_lock (./arch/x86/include/asm/atomic.h:67 ./include/linux/atomic/atomic-arch-fallback.h:2278 ./include/linux/atomic/atomic-instrumented.h:1384 lib/dec_and_lock.c:29) 
> Dec  3 22:22:45 kernel: __dentry_kill (fs/dcache.c:618) 
> Dec  3 22:22:45 kernel: dput (fs/dcache.c:857 fs/dcache.c:845) 
> Dec  3 22:22:45 kernel: do_renameat2 (fs/namei.c:5174) 
> Dec  3 22:22:45 kernel: __x64_sys_rename (fs/namei.c:5215) 
> Dec  3 22:22:45 kernel: do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
> Dec  3 22:22:45 kernel: ? do_user_addr_fault (./include/linux/mm.h:730 arch/x86/mm/fault.c:1340) 
> Dec  3 22:22:45 kernel: ? clear_bhb_loop (arch/x86/entry/entry_64.S:1539) 
> Dec  3 22:22:45 kernel: ? clear_bhb_loop (arch/x86/entry/entry_64.S:1539) 
> Dec  3 22:22:45 kernel: ? clear_bhb_loop (arch/x86/entry/entry_64.S:1539) 
> Dec  3 22:22:45 kernel: entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
> Dec  3 22:22:45 kernel: RIP: 0033:0x7f3185a5aadb
> Dec  3 22:22:45 kernel: RSP: 002b:00007ffe258c4548 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
> Dec  3 22:22:45 kernel: RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f3185a5aadb
> Dec  3 22:22:45 kernel: RDX: 0000000000000025 RSI: 00007ffe258c5cc3 RDI: 00007ffe258c5cb7
> Dec  3 22:22:45 kernel: RBP: 00007ffe258c48f0 R08: 00007ffe258c4670 R09: 00007ffe258c4ac0
> Dec  3 22:22:45 kernel: R10: 0000000000000100 R11: 0000000000000246 R12: 0000000000000011
> Dec  3 22:22:45 kernel: R13: 0000000000000000 R14: 00007ffe258c5cc3 R15: 00007ffe258c4ac0
> Dec  3 22:22:45 kernel: </TASK>
> Dec  3 22:24:48 kernel: INFO: task khugepaged:330 blocked for more than 245 seconds.
> Dec  3 22:24:48 kernel:      Tainted: G        W          6.12.0+ #77
> Dec  3 22:24:48 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> Dec  3 22:24:48 kernel: task:khugepaged      state:D stack:0     pid:330   tgid:330   ppid:2      flags:0x00004000
> Dec  3 22:24:48 kernel: Call Trace:
> Dec  3 22:24:48 kernel: <TASK>
> Dec  3 22:24:48 kernel: __schedule (kernel/sched/core.c:5328 kernel/sched/core.c:6693) 
> Dec  3 22:24:48 kernel: schedule (./arch/x86/include/asm/preempt.h:84 kernel/sched/core.c:6771 kernel/sched/core.c:6785) 
> Dec  3 22:24:48 kernel: schedule_timeout (kernel/time/timer.c:2592) 
> Dec  3 22:24:48 kernel: ? kvm_sched_clock_read (arch/x86/kernel/kvmclock.c:91) 
> Dec  3 22:24:48 kernel: ? sched_clock (./arch/x86/include/asm/preempt.h:94 arch/x86/kernel/tsc.c:285) 
> Dec  3 22:24:48 kernel: ? sched_clock_cpu (kernel/sched/clock.c:394) 
> Dec  3 22:24:48 kernel: ? __smp_call_single_queue (kernel/smp.c:115 kernel/smp.c:411) 
> Dec  3 22:24:48 kernel: __wait_for_common (kernel/sched/completion.c:95 kernel/sched/completion.c:116) 
> Dec  3 22:24:48 kernel: ? __pfx_schedule_timeout (kernel/time/timer.c:2577) 
> Dec  3 22:24:48 kernel: __flush_work (kernel/workqueue.c:4222) 
> Dec  3 22:24:48 kernel: ? __pfx_wq_barrier_func (kernel/workqueue.c:3718) 
> Dec  3 22:24:48 kernel: __lru_add_drain_all (mm/swap.c:873 (discriminator 3)) 
> Dec  3 22:24:48 kernel: khugepaged (mm/khugepaged.c:2499 mm/khugepaged.c:2571) 
> Dec  3 22:24:48 kernel: ? __pfx_khugepaged (mm/khugepaged.c:2564) 
> Dec  3 22:24:48 kernel: kthread (kernel/kthread.c:389) 
> Dec  3 22:24:48 kernel: ? __pfx_kthread (kernel/kthread.c:342) 
> Dec  3 22:24:48 kernel: ret_from_fork (arch/x86/kernel/process.c:147) 
> Dec  3 22:24:48 kernel: ? __pfx_kthread (kernel/kthread.c:342) 
> Dec  3 22:24:48 kernel: ret_from_fork_asm (arch/x86/entry/entry_64.S:257) 
> Dec  3 22:24:48 kernel: </TASK>
> Dec  3 22:24:48 kernel: INFO: task ovs-monitor-ips:3479822 blocked for more than 245 seconds.
> Dec  3 22:24:48 kernel:      Tainted: G        W          6.12.0+ #77
> Dec  3 22:24:48 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> Dec  3 22:24:48 kernel: task:ovs-monitor-ips state:D stack:0     pid:3479822 tgid:3479822 ppid:1      flags:0x00000002
> Dec  3 22:24:48 kernel: Call Trace:
> Dec  3 22:24:48 kernel: <TASK>
> Dec  3 22:24:48 kernel: __schedule (kernel/sched/core.c:5328 kernel/sched/core.c:6693) 
> Dec  3 22:24:48 kernel: ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/paravirt.h:589 ./arch/x86/include/asm/qspinlock.h:57 ./include/linux/spinlock.h:204 ./include/linux/spinlock_api_smp.h:150 kernel/locking/spinlock.c:194) 
> Dec  3 22:24:48 kernel: schedule (./arch/x86/include/asm/preempt.h:84 kernel/sched/core.c:6771 kernel/sched/core.c:6785) 
> Dec  3 22:24:48 kernel: io_schedule (kernel/sched/core.c:7552 kernel/sched/core.c:7578) 
> Dec  3 22:24:48 kernel: folio_wait_bit_common (mm/filemap.c:1301) 
> Dec  3 22:24:48 kernel: ? xas_load (./include/linux/xarray.h:175 ./include/linux/xarray.h:1264 lib/xarray.c:240) 
> Dec  3 22:24:48 kernel: ? __pfx_wake_page_function (mm/filemap.c:1117) 
> Dec  3 22:24:48 kernel: folio_wait_writeback (./arch/x86/include/asm/bitops.h:206 ./arch/x86/include/asm/bitops.h:238 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/page-flags.h:555 mm/page-writeback.c:3187) 
> Dec  3 22:24:48 kernel: truncate_inode_partial_folio (./arch/x86/include/asm/bitops.h:206 ./arch/x86/include/asm/bitops.h:238 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/page-flags.h:822 ./include/linux/page-flags.h:843 ./include/linux/mm.h:1115 ./include/linux/mm.h:2137 mm/truncate.c:209) 
> Dec  3 22:24:48 kernel: truncate_inode_pages_range (mm/truncate.c:354) 
> Dec  3 22:24:48 kernel: ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/paravirt.h:589 ./arch/x86/include/asm/qspinlock.h:57 ./include/linux/spinlock.h:204 ./include/linux/spinlock_api_smp.h:150 kernel/locking/spinlock.c:194) 
> Dec  3 22:24:48 kernel: ? poll_freewait (fs/select.c:140 (discriminator 3)) 
> Dec  3 22:24:48 kernel: ? do_select (fs/select.c:612) 
> Dec  3 22:24:48 kernel: ? __pfx_pollwake (fs/select.c:209) 
> Dec  3 22:24:48 kernel: ? __pfx_pollwake (fs/select.c:209) 
> Dec  3 22:24:48 kernel: ? down_read (./arch/x86/include/asm/preempt.h:79 kernel/locking/rwsem.c:1246 kernel/locking/rwsem.c:1261 kernel/locking/rwsem.c:1526) 
> Dec  3 22:24:48 kernel: ? unmap_mapping_range (mm/memory.c:3873) 
> Dec  3 22:24:48 kernel: truncate_pagecache (mm/truncate.c:728) 
> Dec  3 22:24:48 kernel: xfs_setattr_size+0x139/0x410 xfs
> Dec  3 22:24:48 kernel: xfs_vn_setattr+0x78/0x140 xfs
> Dec  3 22:24:48 kernel: notify_change (fs/attr.c:503) 
> Dec  3 22:24:48 kernel: ? do_truncate (./include/linux/fs.h:820 fs/open.c:66) 
> Dec  3 22:24:48 kernel: do_truncate (./include/linux/fs.h:820 fs/open.c:66) 
> Dec  3 22:24:48 kernel: do_open (fs/namei.c:3395 fs/namei.c:3778) 
> Dec  3 22:24:48 kernel: path_openat (fs/namei.c:3933) 
> Dec  3 22:24:48 kernel: ? memcg_list_lru_alloc (mm/list_lru.c:475 mm/list_lru.c:489) 
> Dec  3 22:24:48 kernel: do_filp_open (fs/namei.c:3960) 
> Dec  3 22:24:48 kernel: ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/paravirt.h:589 ./arch/x86/include/asm/qspinlock.h:57 ./include/linux/spinlock.h:204 ./include/linux/spinlock_api_smp.h:150 kernel/locking/spinlock.c:194) 
> Dec  3 22:24:48 kernel: ? __skb_try_recv_datagram (net/core/datagram.c:267) 
> Dec  3 22:24:48 kernel: ? kmem_cache_alloc_noprof (mm/slub.c:4115 mm/slub.c:4141) 
> Dec  3 22:24:48 kernel: do_sys_openat2 (fs/open.c:1415) 
> Dec  3 22:24:48 kernel: __x64_sys_openat (fs/open.c:1441) 
> Dec  3 22:24:48 kernel: do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
> Dec  3 22:24:48 kernel: ? unix_stream_recvmsg (net/unix/af_unix.c:2997) 
> Dec  3 22:24:48 kernel: ? __pfx_unix_stream_read_actor (net/unix/af_unix.c:2957) 
> Dec  3 22:24:48 kernel: ? sock_recvmsg (net/socket.c:1051 net/socket.c:1073) 
> Dec  3 22:24:48 kernel: ? __sys_recvfrom (net/socket.c:2265) 
> Dec  3 22:24:48 kernel: ? __pte_offset_map (./include/linux/pgtable.h:324 ./include/linux/pgtable.h:594 mm/pgtable-generic.c:289) 
> Dec  3 22:24:48 kernel: ? _raw_spin_unlock (./arch/x86/include/asm/paravirt.h:589 ./arch/x86/include/asm/qspinlock.h:57 ./include/linux/spinlock.h:204 ./include/linux/spinlock_api_smp.h:142 kernel/locking/spinlock.c:186) 
> Dec  3 22:24:48 kernel: ? do_wp_page (./include/linux/vmstat.h:75 mm/memory.c:3263 mm/memory.c:3731) 
> Dec  3 22:24:48 kernel: ? __handle_mm_fault (mm/memory.c:5909) 
> Dec  3 22:24:48 kernel: ? syscall_exit_work (./include/linux/audit.h:357 kernel/entry/common.c:166) 
> Dec  3 22:24:48 kernel: ? __count_memcg_events (mm/memcontrol.c:573 mm/memcontrol.c:836) 
> Dec  3 22:24:48 kernel: ? handle_mm_fault (mm/memory.c:5951 mm/memory.c:6103) 
> Dec  3 22:24:48 kernel: ? do_user_addr_fault (./include/linux/mm.h:730 arch/x86/mm/fault.c:1340) 
> Dec  3 22:24:48 kernel: ? clear_bhb_loop (arch/x86/entry/entry_64.S:1539) 
> Dec  3 22:24:48 kernel: ? clear_bhb_loop (arch/x86/entry/entry_64.S:1539) 
> Dec  3 22:24:48 kernel: ? clear_bhb_loop (arch/x86/entry/entry_64.S:1539) 
> Dec  3 22:24:48 kernel: entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
> Dec  3 22:24:48 kernel: RIP: 0033:0x7f8537cfd70b
> Dec  3 22:24:48 kernel: RSP: 002b:00007fff841fec70 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
> Dec  3 22:24:48 kernel: RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f8537cfd70b
> Dec  3 22:24:48 kernel: RDX: 0000000000080241 RSI: 00007f853707d290 RDI: 00000000ffffff9c
> Dec  3 22:24:48 kernel: RBP: 00007f853707d290 R08: 0000000000000000 R09: 0000000000000000
> Dec  3 22:24:48 kernel: R10: 00000000000001b6 R11: 0000000000000246 R12: 0000000000080241
> Dec  3 22:24:48 kernel: R13: 00007f85371b4ea0 R14: 0000000000080241 R15: 0000000000000000
> Dec  3 22:24:48 kernel: </TASK>
> Dec  3 22:24:48 kernel: INFO: task ovs-monitor-ips:3480383 blocked for more than 122 seconds.
> Dec  3 22:24:48 kernel:      Tainted: G        W          6.12.0+ #77
> Dec  3 22:24:48 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> Dec  3 22:24:48 kernel: task:ovs-monitor-ips state:D stack:0     pid:3480383 tgid:3480383 ppid:1      flags:0x00000002
> Dec  3 22:24:48 kernel: Call Trace:
> Dec  3 22:24:48 kernel: <TASK>
> Dec  3 22:24:48 kernel: __schedule (kernel/sched/core.c:5328 kernel/sched/core.c:6693) 
> Dec  3 22:24:48 kernel: schedule (./arch/x86/include/asm/preempt.h:84 kernel/sched/core.c:6771 kernel/sched/core.c:6785) 
> Dec  3 22:24:48 kernel: io_schedule (kernel/sched/core.c:7552 kernel/sched/core.c:7578) 
> Dec  3 22:24:48 kernel: folio_wait_bit_common (mm/filemap.c:1301) 
> Dec  3 22:24:48 kernel: ? xas_load (./include/linux/xarray.h:175 ./include/linux/xarray.h:1264 lib/xarray.c:240) 
> Dec  3 22:24:48 kernel: ? __pfx_wake_page_function (mm/filemap.c:1117) 
> Dec  3 22:24:48 kernel: folio_wait_writeback (./arch/x86/include/asm/bitops.h:206 ./arch/x86/include/asm/bitops.h:238 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/page-flags.h:555 mm/page-writeback.c:3187) 
> Dec  3 22:24:48 kernel: truncate_inode_partial_folio (./arch/x86/include/asm/bitops.h:206 ./arch/x86/include/asm/bitops.h:238 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/page-flags.h:822 ./include/linux/page-flags.h:843 ./include/linux/mm.h:1115 ./include/linux/mm.h:2137 mm/truncate.c:209) 
> Dec  3 22:24:48 kernel: truncate_inode_pages_range (mm/truncate.c:354) 
> Dec  3 22:24:48 kernel: ? __pfx_pollwake (fs/select.c:209) 
> Dec  3 22:24:48 kernel: ? arch_stack_walk (arch/x86/kernel/stacktrace.c:24) 
> Dec  3 22:24:48 kernel: ? __is_insn_slot_addr (kernel/kprobes.c:299) 
> Dec  3 22:24:48 kernel: ? is_bpf_text_address (kernel/bpf/core.c:768) 
> Dec  3 22:24:48 kernel: ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) 
> Dec  3 22:24:48 kernel: ? __kernel_text_address (kernel/extable.c:79) 
> Dec  3 22:24:48 kernel: ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:369 arch/x86/kernel/unwind_orc.c:364) 
> Dec  3 22:24:48 kernel: ? __pfx_stack_trace_consume_entry (kernel/stacktrace.c:83) 
> Dec  3 22:24:48 kernel: ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) 
> Dec  3 22:24:48 kernel: ? kvm_sched_clock_read (arch/x86/kernel/kvmclock.c:91) 
> Dec  3 22:24:48 kernel: ? local_clock_noinstr (kernel/sched/clock.c:301) 
> Dec  3 22:24:48 kernel: ? local_clock (./arch/x86/include/asm/preempt.h:94 kernel/sched/clock.c:316) 
> Dec  3 22:24:48 kernel: ? metadata_update_state (mm/kfence/core.c:313) 
> Dec  3 22:24:48 kernel: ? inode_init_once (fs/inode.c:405 fs/inode.c:431) 
> Dec  3 22:24:48 kernel: ? kfence_guarded_alloc (mm/kfence/core.c:502) 
> Dec  3 22:24:48 kernel: ? sock_alloc_inode (net/socket.c:307) 
> Dec  3 22:24:48 kernel: ? __kfence_alloc (mm/kfence/core.c:1136) 
> Dec  3 22:24:48 kernel: ? __kfence_alloc (mm/kfence/core.c:209 mm/kfence/core.c:1130) 
> Dec  3 22:24:48 kernel: ? kmem_cache_alloc_lru_noprof (mm/slub.c:4119 mm/slub.c:4153) 
> Dec  3 22:24:48 kernel: ? sock_alloc_inode (net/socket.c:307) 
> Dec  3 22:24:48 kernel: ? down_read (./arch/x86/include/asm/preempt.h:79 kernel/locking/rwsem.c:1246 kernel/locking/rwsem.c:1261 kernel/locking/rwsem.c:1526) 
> Dec  3 22:24:48 kernel: ? unmap_mapping_range (mm/memory.c:3873) 
> Dec  3 22:24:48 kernel: truncate_pagecache (mm/truncate.c:728) 
> Dec  3 22:24:48 kernel: xfs_setattr_size+0x139/0x410 xfs
> Dec  3 22:24:48 kernel: xfs_vn_setattr+0x78/0x140 xfs
> Dec  3 22:24:48 kernel: notify_change (fs/attr.c:503) 
> Dec  3 22:24:48 kernel: ? do_truncate (./include/linux/fs.h:820 fs/open.c:66) 
> Dec  3 22:24:48 kernel: do_truncate (./include/linux/fs.h:820 fs/open.c:66) 
> Dec  3 22:24:48 kernel: do_open (fs/namei.c:3395 fs/namei.c:3778) 
> Dec  3 22:24:48 kernel: path_openat (fs/namei.c:3933) 
> Dec  3 22:24:48 kernel: do_filp_open (fs/namei.c:3960) 
> Dec  3 22:24:48 kernel: ? __pfx_unix_stream_read_actor (net/unix/af_unix.c:2957) 
> Dec  3 22:24:48 kernel: ? sock_recvmsg (net/socket.c:1051 net/socket.c:1073) 
> Dec  3 22:24:48 kernel: ? kmem_cache_alloc_noprof (mm/slub.c:4115 mm/slub.c:4141) 
> Dec  3 22:24:48 kernel: do_sys_openat2 (fs/open.c:1415) 
> Dec  3 22:24:48 kernel: __x64_sys_openat (fs/open.c:1441) 
> Dec  3 22:24:48 kernel: do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
> Dec  3 22:24:48 kernel: ? syscall_exit_work (./include/linux/audit.h:357 kernel/entry/common.c:166) 
> Dec  3 22:24:48 kernel: ? syscall_exit_to_user_mode (./arch/x86/include/asm/irqflags.h:37 ./arch/x86/include/asm/irqflags.h:92 ./include/linux/entry-common.h:231 kernel/entry/common.c:206 kernel/entry/common.c:218) 
> Dec  3 22:24:48 kernel: ? do_syscall_64 (arch/x86/entry/common.c:102) 
> Dec  3 22:24:48 kernel: ? rseq_ip_fixup (kernel/rseq.c:257 kernel/rseq.c:291) 
> Dec  3 22:24:48 kernel: ? ktime_get_ts64 (kernel/time/timekeeping.c:195 (discriminator 3) kernel/time/timekeeping.c:395 (discriminator 3) kernel/time/timekeeping.c:403 (discriminator 3) kernel/time/timekeeping.c:983 (discriminator 3)) 
> Dec  3 22:24:48 kernel: ? switch_fpu_return (arch/x86/kernel/fpu/context.h:49 arch/x86/kernel/fpu/context.h:76 arch/x86/kernel/fpu/core.c:787) 
> Dec  3 22:24:48 kernel: ? syscall_exit_to_user_mode (./arch/x86/include/asm/entry-common.h:58 ./arch/x86/include/asm/entry-common.h:65 ./include/linux/entry-common.h:330 kernel/entry/common.c:207 kernel/entry/common.c:218) 
> Dec  3 22:24:48 kernel: ? __pte_offset_map (./include/linux/pgtable.h:324 ./include/linux/pgtable.h:594 mm/pgtable-generic.c:289) 
> Dec  3 22:24:48 kernel: ? _raw_spin_unlock (./arch/x86/include/asm/paravirt.h:589 ./arch/x86/include/asm/qspinlock.h:57 ./include/linux/spinlock.h:204 ./include/linux/spinlock_api_smp.h:142 kernel/locking/spinlock.c:186) 
> Dec  3 22:24:48 kernel: ? do_wp_page (./include/linux/vmstat.h:75 mm/memory.c:3263 mm/memory.c:3731) 
> Dec  3 22:24:48 kernel: ? __handle_mm_fault (mm/memory.c:5909) 
> Dec  3 22:24:48 kernel: ? __count_memcg_events (mm/memcontrol.c:573 mm/memcontrol.c:836) 
> Dec  3 22:24:48 kernel: ? handle_mm_fault (mm/memory.c:5951 mm/memory.c:6103) 
> Dec  3 22:24:48 kernel: ? do_user_addr_fault (./include/linux/mm.h:730 arch/x86/mm/fault.c:1340) 
> Dec  3 22:24:48 kernel: ? clear_bhb_loop (arch/x86/entry/entry_64.S:1539) 
> Dec  3 22:24:48 kernel: ? clear_bhb_loop (arch/x86/entry/entry_64.S:1539) 
> Dec  3 22:24:48 kernel: ? clear_bhb_loop (arch/x86/entry/entry_64.S:1539) 
> Dec  3 22:24:48 kernel: entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
> Dec  3 22:24:48 kernel: RIP: 0033:0x7f85c7afd70b
> Dec  3 22:24:48 kernel: RSP: 002b:00007ffe53f6c870 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
> Dec  3 22:24:48 kernel: RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f85c7afd70b
> Dec  3 22:24:48 kernel: RDX: 0000000000080241 RSI: 00007f85c6d74290 RDI: 00000000ffffff9c
> Dec  3 22:24:48 kernel: RBP: 00007f85c6d74290 R08: 0000000000000000 R09: 0000000000000000
> Dec  3 22:24:48 kernel: R10: 00000000000001b6 R11: 0000000000000246 R12: 0000000000080241
> Dec  3 22:24:48 kernel: R13: 00007f85c6e01ea0 R14: 0000000000080241 R15: 0000000000000000
> Dec  3 22:24:48 kernel: </TASK>
> Dec  3 22:24:48 kernel: INFO: task ovs-monitor-ips:3481787 blocked for more than 122 seconds.
> Dec  3 22:24:48 kernel:      Tainted: G        W          6.12.0+ #77
> Dec  3 22:24:48 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> Dec  3 22:24:48 kernel: task:ovs-monitor-ips state:D stack:0     pid:3481787 tgid:3481787 ppid:1      flags:0x00000002
> Dec  3 22:24:48 kernel: Call Trace:
> Dec  3 22:24:48 kernel: <TASK>
> Dec  3 22:24:48 kernel: __schedule (kernel/sched/core.c:5328 kernel/sched/core.c:6693) 
> Dec  3 22:24:48 kernel: schedule (./arch/x86/include/asm/preempt.h:84 kernel/sched/core.c:6771 kernel/sched/core.c:6785) 
> Dec  3 22:24:48 kernel: io_schedule (kernel/sched/core.c:7552 kernel/sched/core.c:7578) 
> Dec  3 22:24:48 kernel: folio_wait_bit_common (mm/filemap.c:1301) 
> Dec  3 22:24:48 kernel: ? xas_load (./include/linux/xarray.h:175 ./include/linux/xarray.h:1264 lib/xarray.c:240) 
> Dec  3 22:24:48 kernel: ? __pfx_wake_page_function (mm/filemap.c:1117) 
> Dec  3 22:24:48 kernel: folio_wait_writeback (./arch/x86/include/asm/bitops.h:206 ./arch/x86/include/asm/bitops.h:238 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/page-flags.h:555 mm/page-writeback.c:3187) 
> Dec  3 22:24:48 kernel: truncate_inode_partial_folio (./arch/x86/include/asm/bitops.h:206 ./arch/x86/include/asm/bitops.h:238 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/page-flags.h:822 ./include/linux/page-flags.h:843 ./include/linux/mm.h:1115 ./include/linux/mm.h:2137 mm/truncate.c:209) 
> Dec  3 22:24:48 kernel: truncate_inode_pages_range (mm/truncate.c:354) 
> Dec  3 22:24:48 kernel: ? sock_alloc_inode (net/socket.c:307) 
> Dec  3 22:24:48 kernel: ? __kfence_alloc (mm/kfence/core.c:1136) 
> Dec  3 22:24:48 kernel: ? __kfence_alloc (mm/kfence/core.c:209 mm/kfence/core.c:1130) 
> Dec  3 22:24:48 kernel: ? kmem_cache_alloc_lru_noprof (mm/slub.c:4119 mm/slub.c:4153) 
> Dec  3 22:24:48 kernel: ? sock_alloc_inode (net/socket.c:307) 
> Dec  3 22:24:48 kernel: ? alloc_inode (fs/inode.c:265) 
> Dec  3 22:24:48 kernel: ? sock_alloc (net/socket.c:634) 
> Dec  3 22:24:48 kernel: ? do_accept (net/socket.c:1929) 
> Dec  3 22:24:48 kernel: ? __sys_accept4 (net/socket.c:1992 net/socket.c:2022) 
> Dec  3 22:24:48 kernel: ? __x64_sys_accept4 (net/socket.c:2033 net/socket.c:2030 net/socket.c:2030) 
> Dec  3 22:24:48 kernel: ? do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
> Dec  3 22:24:48 kernel: ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
> Dec  3 22:24:48 kernel: ? __pfx_pollwake (fs/select.c:209) 
> Dec  3 22:24:48 kernel: ? xas_load (./include/linux/xarray.h:175 ./include/linux/xarray.h:1264 lib/xarray.c:240) 
> Dec  3 22:24:48 kernel: ? xfrm_state_mtu (net/xfrm/xfrm_state.c:2842 net/xfrm/xfrm_state.c:2824) 
> Dec  3 22:24:48 kernel: ? memcg_list_lru_alloc (mm/list_lru.c:475 mm/list_lru.c:489) 
> Dec  3 22:24:48 kernel: ? down_read (./arch/x86/include/asm/preempt.h:79 kernel/locking/rwsem.c:1246 kernel/locking/rwsem.c:1261 kernel/locking/rwsem.c:1526) 
> Dec  3 22:24:48 kernel: ? unmap_mapping_range (mm/memory.c:3873) 
> Dec  3 22:24:48 kernel: truncate_pagecache (mm/truncate.c:728) 
> Dec  3 22:24:48 kernel: xfs_setattr_size+0x139/0x410 xfs
> Dec  3 22:24:48 kernel: xfs_vn_setattr+0x78/0x140 xfs
> Dec  3 22:24:48 kernel: notify_change (fs/attr.c:503) 
> Dec  3 22:24:48 kernel: ? do_truncate (./include/linux/fs.h:820 fs/open.c:66) 
> Dec  3 22:24:48 kernel: do_truncate (./include/linux/fs.h:820 fs/open.c:66) 
> Dec  3 22:24:48 kernel: do_open (fs/namei.c:3395 fs/namei.c:3778) 
> Dec  3 22:24:48 kernel: path_openat (fs/namei.c:3933) 
> Dec  3 22:24:48 kernel: do_filp_open (fs/namei.c:3960) 
> Dec  3 22:24:48 kernel: ? do_wp_page (./include/linux/vmstat.h:75 mm/memory.c:3263 mm/memory.c:3731) 
> Dec  3 22:24:48 kernel: ? __handle_mm_fault (mm/memory.c:5909) 
> Dec  3 22:24:48 kernel: ? kmem_cache_alloc_noprof (mm/slub.c:4115 mm/slub.c:4141) 
> Dec  3 22:24:48 kernel: do_sys_openat2 (fs/open.c:1415) 
> Dec  3 22:24:48 kernel: __x64_sys_openat (fs/open.c:1441) 
> Dec  3 22:24:48 kernel: do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
> Dec  3 22:24:48 kernel: ? do_user_addr_fault (./include/linux/mm.h:730 arch/x86/mm/fault.c:1340) 
> Dec  3 22:24:48 kernel: ? clear_bhb_loop (arch/x86/entry/entry_64.S:1539) 
> Dec  3 22:24:48 kernel: ? clear_bhb_loop (arch/x86/entry/entry_64.S:1539) 
> Dec  3 22:24:48 kernel: ? clear_bhb_loop (arch/x86/entry/entry_64.S:1539) 
> Dec  3 22:24:48 kernel: entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
> Dec  3 22:24:48 kernel: RIP: 0033:0x7f79468fd70b
> Dec  3 22:24:48 kernel: RSP: 002b:00007ffd27a6c700 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
> Dec  3 22:24:48 kernel: RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f79468fd70b
> Dec  3 22:24:48 kernel: RDX: 0000000000080241 RSI: 00007f7945b64290 RDI: 00000000ffffff9c
> Dec  3 22:24:48 kernel: RBP: 00007f7945b64290 R08: 0000000000000000 R09: 0000000000000000
> Dec  3 22:24:48 kernel: R10: 00000000000001b6 R11: 0000000000000246 R12: 0000000000080241
> Dec  3 22:24:48 kernel: R13: 00007f7945bf2ea0 R14: 0000000000080241 R15: 0000000000000000
> Dec  3 22:24:48 kernel: </TASK>
> Dec  3 22:24:48 kernel: INFO: task ovs-monitor-ips:3482631 blocked for more than 122 seconds.
> Dec  3 22:24:48 kernel:      Tainted: G        W          6.12.0+ #77
> Dec  3 22:24:48 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> Dec  3 22:24:48 kernel: task:ovs-monitor-ips state:D stack:0     pid:3482631 tgid:3482631 ppid:1      flags:0x00000002
> Dec  3 22:24:48 kernel: Call Trace:
> Dec  3 22:24:48 kernel: <TASK>
> Dec  3 22:24:48 kernel: __schedule (kernel/sched/core.c:5328 kernel/sched/core.c:6693) 
> Dec  3 22:24:48 kernel: schedule (./arch/x86/include/asm/preempt.h:84 kernel/sched/core.c:6771 kernel/sched/core.c:6785) 
> Dec  3 22:24:48 kernel: io_schedule (kernel/sched/core.c:7552 kernel/sched/core.c:7578) 
> Dec  3 22:24:48 kernel: folio_wait_bit_common (mm/filemap.c:1301) 
> Dec  3 22:24:48 kernel: ? xas_load (./include/linux/xarray.h:175 ./include/linux/xarray.h:1264 lib/xarray.c:240) 
> Dec  3 22:24:48 kernel: ? __pfx_wake_page_function (mm/filemap.c:1117) 
> Dec  3 22:24:48 kernel: folio_wait_writeback (./arch/x86/include/asm/bitops.h:206 ./arch/x86/include/asm/bitops.h:238 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/page-flags.h:555 mm/page-writeback.c:3187) 
> Dec  3 22:24:48 kernel: truncate_inode_partial_folio (./arch/x86/include/asm/bitops.h:206 ./arch/x86/include/asm/bitops.h:238 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/page-flags.h:822 ./include/linux/page-flags.h:843 ./include/linux/mm.h:1115 ./include/linux/mm.h:2137 mm/truncate.c:209) 
> Dec  3 22:24:48 kernel: truncate_inode_pages_range (mm/truncate.c:354) 
> Dec  3 22:24:48 kernel: ? _raw_spin_unlock (./arch/x86/include/asm/paravirt.h:589 ./arch/x86/include/asm/qspinlock.h:57 ./include/linux/spinlock.h:204 ./include/linux/spinlock_api_smp.h:142 kernel/locking/spinlock.c:186) 
> Dec  3 22:24:48 kernel: ? finish_task_switch.isra.0 (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 kernel/sched/sched.h:1518 kernel/sched/core.c:5082 kernel/sched/core.c:5200) 
> Dec  3 22:24:48 kernel: ? __schedule (kernel/sched/core.c:6699) 
> Dec  3 22:24:48 kernel: ? xfrm_state_mtu (net/xfrm/xfrm_state.c:2842 net/xfrm/xfrm_state.c:2824) 
> Dec  3 22:24:48 kernel: ? schedule_hrtimeout_range_clock (kernel/time/hrtimer.c:1332 kernel/time/hrtimer.c:1449 kernel/time/hrtimer.c:2283) 
> Dec  3 22:24:48 kernel: ? remove_wait_queue (./include/linux/list.h:215 ./include/linux/list.h:229 ./include/linux/wait.h:207 kernel/sched/wait.c:55) 
> Dec  3 22:24:48 kernel: ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/paravirt.h:589 ./arch/x86/include/asm/qspinlock.h:57 ./include/linux/spinlock.h:204 ./include/linux/spinlock_api_smp.h:150 kernel/locking/spinlock.c:194) 
> Dec  3 22:24:48 kernel: ? poll_freewait (fs/select.c:140 (discriminator 3)) 
> Dec  3 22:24:48 kernel: ? do_select (fs/select.c:612) 
> Dec  3 22:24:48 kernel: ? down_read (./arch/x86/include/asm/preempt.h:79 kernel/locking/rwsem.c:1246 kernel/locking/rwsem.c:1261 kernel/locking/rwsem.c:1526) 
> Dec  3 22:24:48 kernel: ? unmap_mapping_range (mm/memory.c:3873) 
> Dec  3 22:24:48 kernel: truncate_pagecache (mm/truncate.c:728) 
> Dec  3 22:24:48 kernel: xfs_setattr_size+0x139/0x410 xfs
> Dec  3 22:24:48 kernel: xfs_vn_setattr+0x78/0x140 xfs
> Dec  3 22:24:48 kernel: notify_change (fs/attr.c:503) 
> Dec  3 22:24:48 kernel: ? do_truncate (./include/linux/fs.h:820 fs/open.c:66) 
> Dec  3 22:24:48 kernel: do_truncate (./include/linux/fs.h:820 fs/open.c:66) 
> Dec  3 22:24:48 kernel: do_open (fs/namei.c:3395 fs/namei.c:3778) 
> Dec  3 22:24:48 kernel: path_openat (fs/namei.c:3933) 
> Dec  3 22:24:48 kernel: do_filp_open (fs/namei.c:3960) 
> Dec  3 22:24:48 kernel: ? unix_stream_recvmsg (net/unix/af_unix.c:2997) 
> Dec  3 22:24:48 kernel: ? __pfx_unix_stream_read_actor (net/unix/af_unix.c:2957) 
> Dec  3 22:24:48 kernel: ? kmem_cache_alloc_noprof (mm/slub.c:4115 mm/slub.c:4141) 
> Dec  3 22:24:48 kernel: do_sys_openat2 (fs/open.c:1415) 
> Dec  3 22:24:48 kernel: __x64_sys_openat (fs/open.c:1441) 
> Dec  3 22:24:48 kernel: do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
> Dec  3 22:24:48 kernel: ? syscall_exit_work (./include/linux/audit.h:357 kernel/entry/common.c:166) 
> Dec  3 22:24:48 kernel: ? syscall_exit_to_user_mode (./arch/x86/include/asm/irqflags.h:37 ./arch/x86/include/asm/irqflags.h:92 ./include/linux/entry-common.h:231 kernel/entry/common.c:206 kernel/entry/common.c:218) 
> Dec  3 22:24:48 kernel: ? do_syscall_64 (arch/x86/entry/common.c:102) 
> Dec  3 22:24:48 kernel: ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/paravirt.h:589 ./arch/x86/include/asm/qspinlock.h:57 ./include/linux/spinlock.h:204 ./include/linux/spinlock_api_smp.h:150 kernel/locking/spinlock.c:194) 
> Dec  3 22:24:48 kernel: ? __skb_try_recv_datagram (net/core/datagram.c:267) 
> Dec  3 22:24:48 kernel: ? __skb_recv_datagram (net/core/datagram.c:296) 
> Dec  3 22:24:48 kernel: ? __memcg_slab_free_hook (mm/memcontrol.c:3004 (discriminator 2)) 
> Dec  3 22:24:48 kernel: ? __pte_offset_map (./include/linux/pgtable.h:324 ./include/linux/pgtable.h:594 mm/pgtable-generic.c:289) 
> Dec  3 22:24:48 kernel: ? _raw_spin_unlock (./arch/x86/include/asm/paravirt.h:589 ./arch/x86/include/asm/qspinlock.h:57 ./include/linux/spinlock.h:204 ./include/linux/spinlock_api_smp.h:142 kernel/locking/spinlock.c:186) 
> Dec  3 22:24:48 kernel: ? do_wp_page (./include/linux/vmstat.h:75 mm/memory.c:3263 mm/memory.c:3731) 
> Dec  3 22:24:48 kernel: ? __handle_mm_fault (mm/memory.c:5909) 
> Dec  3 22:24:48 kernel: ? __count_memcg_events (mm/memcontrol.c:573 mm/memcontrol.c:836) 
> Dec  3 22:24:48 kernel: ? handle_mm_fault (mm/memory.c:5951 mm/memory.c:6103) 
> Dec  3 22:24:48 kernel: ? do_user_addr_fault (./include/linux/mm.h:730 arch/x86/mm/fault.c:1340) 
> Dec  3 22:24:48 kernel: ? clear_bhb_loop (arch/x86/entry/entry_64.S:1539) 
> Dec  3 22:24:48 kernel: ? clear_bhb_loop (arch/x86/entry/entry_64.S:1539) 
> Dec  3 22:24:48 kernel: ? clear_bhb_loop (arch/x86/entry/entry_64.S:1539) 
> Dec  3 22:24:48 kernel: entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
> Dec  3 22:24:48 kernel: RIP: 0033:0x7f10818fd70b
> Dec  3 22:24:48 kernel: RSP: 002b:00007fff83e83f80 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
> Dec  3 22:24:48 kernel: RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f10818fd70b
> Dec  3 22:24:48 kernel: RDX: 0000000000080241 RSI: 00007f1080d5a8a0 RDI: 00000000ffffff9c
> Dec  3 22:24:48 kernel: RBP: 00007f1080d5a8a0 R08: 0000000000000000 R09: 0000000000000000
> Dec  3 22:24:48 kernel: R10: 00000000000001b6 R11: 0000000000000246 R12: 0000000000080241
> Dec  3 22:24:48 kernel: R13: 00007f1080d50bb0 R14: 0000000000080241 R15: 0000000000000000
> Dec  3 22:24:48 kernel: </TASK>
> Dec  3 22:24:48 kernel: INFO: task mv:3483072 blocked for more than 245 seconds.
> Dec  3 22:24:48 kernel:      Tainted: G        W          6.12.0+ #77
> Dec  3 22:24:48 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> Dec  3 22:24:48 kernel: task:mv              state:D stack:0     pid:3483072 tgid:3483072 ppid:3479428 flags:0x00000002
> Dec  3 22:24:48 kernel: Call Trace:
> Dec  3 22:24:48 kernel: <TASK>
> Dec  3 22:24:48 kernel: __schedule (kernel/sched/core.c:5328 kernel/sched/core.c:6693) 
> Dec  3 22:24:48 kernel: schedule (./arch/x86/include/asm/preempt.h:84 kernel/sched/core.c:6771 kernel/sched/core.c:6785) 
> Dec  3 22:24:48 kernel: io_schedule (kernel/sched/core.c:7552 kernel/sched/core.c:7578) 
> Dec  3 22:24:48 kernel: folio_wait_bit_common (mm/filemap.c:1301) 
> Dec  3 22:24:48 kernel: ? xas_load (./include/linux/xarray.h:175 ./include/linux/xarray.h:1264 lib/xarray.c:240) 
> Dec  3 22:24:48 kernel: ? __pfx_wake_page_function (mm/filemap.c:1117) 
> Dec  3 22:24:48 kernel: folio_wait_writeback (./arch/x86/include/asm/bitops.h:206 ./arch/x86/include/asm/bitops.h:238 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/page-flags.h:555 mm/page-writeback.c:3187) 
> Dec  3 22:24:48 kernel: truncate_inode_partial_folio (./arch/x86/include/asm/bitops.h:206 ./arch/x86/include/asm/bitops.h:238 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/page-flags.h:822 ./include/linux/page-flags.h:843 ./include/linux/mm.h:1115 ./include/linux/mm.h:2137 mm/truncate.c:209) 
> Dec  3 22:24:48 kernel: truncate_inode_pages_range (mm/truncate.c:354) 
> Dec  3 22:24:48 kernel: ? xfs_iunlock+0x108/0x200 xfs
> Dec  3 22:24:48 kernel: ? xfs_rename+0x368/0x990 xfs
> Dec  3 22:24:48 kernel: ? fsnotify_move (./include/linux/fsnotify.h:72 ./include/linux/fsnotify.h:64 ./include/linux/fsnotify.h:238) 
> Dec  3 22:24:48 kernel: ? _raw_spin_unlock (./arch/x86/include/asm/paravirt.h:589 ./arch/x86/include/asm/qspinlock.h:57 ./include/linux/spinlock.h:204 ./include/linux/spinlock_api_smp.h:142 kernel/locking/spinlock.c:186) 
> Dec  3 22:24:48 kernel: ? locked_inode_to_wb_and_lock_list (fs/fs-writeback.c:355) 
> Dec  3 22:24:48 kernel: evict (fs/inode.c:728) 
> Dec  3 22:24:48 kernel: ? fsnotify_destroy_marks (fs/notify/mark.c:923) 
> Dec  3 22:24:48 kernel: ? _atomic_dec_and_lock (./arch/x86/include/asm/atomic.h:67 ./include/linux/atomic/atomic-arch-fallback.h:2278 ./include/linux/atomic/atomic-instrumented.h:1384 lib/dec_and_lock.c:29) 
> Dec  3 22:24:48 kernel: __dentry_kill (fs/dcache.c:618) 
> Dec  3 22:24:48 kernel: dput (fs/dcache.c:857 fs/dcache.c:845) 
> Dec  3 22:24:48 kernel: do_renameat2 (fs/namei.c:5174) 
> Dec  3 22:24:48 kernel: __x64_sys_rename (fs/namei.c:5215) 
> Dec  3 22:24:48 kernel: do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
> Dec  3 22:24:48 kernel: ? do_user_addr_fault (./include/linux/mm.h:730 arch/x86/mm/fault.c:1340) 
> Dec  3 22:24:48 kernel: ? clear_bhb_loop (arch/x86/entry/entry_64.S:1539) 
> Dec  3 22:24:48 kernel: ? clear_bhb_loop (arch/x86/entry/entry_64.S:1539) 
> Dec  3 22:24:48 kernel: ? clear_bhb_loop (arch/x86/entry/entry_64.S:1539) 
> Dec  3 22:24:48 kernel: entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
> Dec  3 22:24:48 kernel: RIP: 0033:0x7f3185a5aadb
> Dec  3 22:24:48 kernel: RSP: 002b:00007ffe258c4548 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
> Dec  3 22:24:48 kernel: RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f3185a5aadb
> Dec  3 22:24:48 kernel: RDX: 0000000000000025 RSI: 00007ffe258c5cc3 RDI: 00007ffe258c5cb7
> Dec  3 22:24:48 kernel: RBP: 00007ffe258c48f0 R08: 00007ffe258c4670 R09: 00007ffe258c4ac0
> Dec  3 22:24:48 kernel: R10: 0000000000000100 R11: 0000000000000246 R12: 0000000000000011
> Dec  3 22:24:48 kernel: R13: 0000000000000000 R14: 00007ffe258c5cc3 R15: 00007ffe258c4ac0
> Dec  3 22:24:48 kernel: </TASK>
> Dec  3 22:26:51 kernel: INFO: task khugepaged:330 blocked for more than 368 seconds.
> Dec  3 22:26:51 kernel:      Tainted: G        W          6.12.0+ #77
> Dec  3 22:26:51 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> Dec  3 22:26:51 kernel: task:khugepaged      state:D stack:0     pid:330   tgid:330   ppid:2      flags:0x00004000
> Dec  3 22:26:51 kernel: Call Trace:
> Dec  3 22:26:51 kernel: <TASK>
> Dec  3 22:26:51 kernel: __schedule (kernel/sched/core.c:5328 kernel/sched/core.c:6693) 
> Dec  3 22:26:51 kernel: schedule (./arch/x86/include/asm/preempt.h:84 kernel/sched/core.c:6771 kernel/sched/core.c:6785) 
> Dec  3 22:26:51 kernel: schedule_timeout (kernel/time/timer.c:2592) 
> Dec  3 22:26:51 kernel: ? kvm_sched_clock_read (arch/x86/kernel/kvmclock.c:91) 
> Dec  3 22:26:51 kernel: ? sched_clock (./arch/x86/include/asm/preempt.h:94 arch/x86/kernel/tsc.c:285) 
> Dec  3 22:26:51 kernel: ? sched_clock_cpu (kernel/sched/clock.c:394) 
> Dec  3 22:26:51 kernel: ? __smp_call_single_queue (kernel/smp.c:115 kernel/smp.c:411) 
> Dec  3 22:26:51 kernel: __wait_for_common (kernel/sched/completion.c:95 kernel/sched/completion.c:116) 
> Dec  3 22:26:51 kernel: ? __pfx_schedule_timeout (kernel/time/timer.c:2577) 
> Dec  3 22:26:51 kernel: __flush_work (kernel/workqueue.c:4222) 
> Dec  3 22:26:51 kernel: ? __pfx_wq_barrier_func (kernel/workqueue.c:3718) 
> Dec  3 22:26:51 kernel: __lru_add_drain_all (mm/swap.c:873 (discriminator 3)) 
> Dec  3 22:26:51 kernel: khugepaged (mm/khugepaged.c:2499 mm/khugepaged.c:2571) 
> Dec  3 22:26:51 kernel: ? __pfx_khugepaged (mm/khugepaged.c:2564) 
> Dec  3 22:26:51 kernel: kthread (kernel/kthread.c:389) 
> Dec  3 22:26:51 kernel: ? __pfx_kthread (kernel/kthread.c:342) 
> Dec  3 22:26:51 kernel: ret_from_fork (arch/x86/kernel/process.c:147) 
> Dec  3 22:26:51 kernel: ? __pfx_kthread (kernel/kthread.c:342) 
> Dec  3 22:26:51 kernel: ret_from_fork_asm (arch/x86/entry/entry_64.S:257) 
> Dec  3 22:26:51 kernel: </TASK>
> Dec  3 22:26:51 kernel: Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings
> 
> 
> Still blocked after many hours:
> 
> Dec  4 06:11:45 kernel: INFO: task khugepaged:330 blocked for more than 28262 seconds.
> Dec  4 06:11:45 kernel:      Tainted: G        W          6.12.0+ #77
> Dec  4 06:11:45 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> Dec  4 06:11:45 kernel: task:khugepaged      state:D stack:0     pid:330   tgid:330   ppid:2      flags:0x00004000
> Dec  4 06:11:45 kernel: Call Trace:
> Dec  4 06:11:45 kernel: <TASK>
> Dec  4 06:11:45 kernel: __schedule (kernel/sched/core.c:5328 kernel/sched/core.c:6693) 
> Dec  4 06:11:45 kernel: schedule (./arch/x86/include/asm/preempt.h:84 kernel/sched/core.c:6771 kernel/sched/core.c:6785) 
> Dec  4 06:11:45 kernel: schedule_timeout (kernel/time/timer.c:2592) 
> Dec  4 06:11:45 kernel: ? kvm_sched_clock_read (arch/x86/kernel/kvmclock.c:91) 
> Dec  4 06:11:45 kernel: ? sched_clock (./arch/x86/include/asm/preempt.h:94 arch/x86/kernel/tsc.c:285) 
> Dec  4 06:11:45 kernel: ? sched_clock_cpu (kernel/sched/clock.c:394) 
> Dec  4 06:11:45 kernel: ? __smp_call_single_queue (kernel/smp.c:115 kernel/smp.c:411) 
> Dec  4 06:11:45 kernel: __wait_for_common (kernel/sched/completion.c:95 kernel/sched/completion.c:116) 
> Dec  4 06:11:45 kernel: ? __pfx_schedule_timeout (kernel/time/timer.c:2577) 
> Dec  4 06:11:45 kernel: __flush_work (kernel/workqueue.c:4222) 
> Dec  4 06:11:45 kernel: ? __pfx_wq_barrier_func (kernel/workqueue.c:3718) 
> Dec  4 06:11:45 kernel: __lru_add_drain_all (mm/swap.c:873 (discriminator 3)) 
> Dec  4 06:11:45 kernel: khugepaged (mm/khugepaged.c:2499 mm/khugepaged.c:2571) 
> Dec  4 06:11:45 kernel: ? __pfx_khugepaged (mm/khugepaged.c:2564) 
> Dec  4 06:11:45 kernel: kthread (kernel/kthread.c:389) 
> Dec  4 06:11:45 kernel: ? __pfx_kthread (kernel/kthread.c:342) 
> Dec  4 06:11:45 kernel: ret_from_fork (arch/x86/kernel/process.c:147) 
> Dec  4 06:11:45 kernel: ? __pfx_kthread (kernel/kthread.c:342) 
> Dec  4 06:11:45 kernel: ret_from_fork_asm (arch/x86/entry/entry_64.S:257) 
> Dec  4 06:11:45 kernel: </TASK>
> Dec  4 06:11:45 kernel: Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings
> 
> 
> The system is actually idle:
> 
> Dec  4 06:27:07 kernel: sysrq: Show backtrace of all active CPUs
> Dec  4 06:27:07 kernel: NMI backtrace for cpu 30
> Dec  4 06:27:07 kernel: CPU: 30 UID: 0 PID: 10810 Comm: bash Kdump: loaded Tainted: G        W          6.12.0+ #77
> Dec  4 06:27:07 kernel: Tainted: [W]=WARN
> Dec  4 06:27:07 kernel: Hardware name: Red Hat KVM/RHEL, BIOS 1.16.1-1.el9 04/01/2014
> Dec  4 06:27:07 kernel: Call Trace:
> Dec  4 06:27:07 kernel: <TASK>
> Dec  4 06:27:07 kernel: dump_stack_lvl (lib/dump_stack.c:123) 
> Dec  4 06:27:07 kernel: nmi_cpu_backtrace (lib/nmi_backtrace.c:113) 
> Dec  4 06:27:07 kernel: ? __pfx_nmi_raise_cpu_backtrace (arch/x86/kernel/apic/hw_nmi.c:35) 
> Dec  4 06:27:07 kernel: nmi_trigger_cpumask_backtrace (lib/nmi_backtrace.c:62) 
> Dec  4 06:27:07 kernel: __handle_sysrq (drivers/tty/sysrq.c:613) 
> Dec  4 06:27:07 kernel: write_sysrq_trigger (drivers/tty/sysrq.c:1184) 
> Dec  4 06:27:07 kernel: proc_reg_write (fs/proc/inode.c:330 fs/proc/inode.c:342) 
> Dec  4 06:27:07 kernel: vfs_write (fs/read_write.c:681) 
> Dec  4 06:27:07 kernel: ? do_fcntl (fs/fcntl.c:463) 
> Dec  4 06:27:07 kernel: ksys_write (fs/read_write.c:736) 
> Dec  4 06:27:07 kernel: do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
> Dec  4 06:27:07 kernel: ? clear_bhb_loop (arch/x86/entry/entry_64.S:1539) 
> Dec  4 06:27:07 kernel: ? clear_bhb_loop (arch/x86/entry/entry_64.S:1539) 
> Dec  4 06:27:07 kernel: ? clear_bhb_loop (arch/x86/entry/entry_64.S:1539) 
> Dec  4 06:27:07 kernel: entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
> Dec  4 06:27:07 kernel: RIP: 0033:0x7fb77cefda57
> Dec  4 06:27:07 kernel: </TASK>
> Dec  4 06:27:07 kernel: Sending NMI from CPU 30 to CPUs 0-29,31-39:
> Dec  4 06:27:07 kernel: NMI backtrace for cpu 12 skipped: idling at default_idle 
> Dec  4 06:27:07 kernel: NMI backtrace for cpu 6 skipped: idling at default_idle 
> Dec  4 06:27:07 kernel: NMI backtrace for cpu 16 skipped: idling at default_idle 
> Dec  4 06:27:07 kernel: NMI backtrace for cpu 4 skipped: idling at default_idle 
> Dec  4 06:27:07 kernel: NMI backtrace for cpu 20 skipped: idling at default_idle 
> Dec  4 06:27:07 kernel: NMI backtrace for cpu 10 skipped: idling at default_idle 
> Dec  4 06:27:07 kernel: NMI backtrace for cpu 33 skipped: idling at default_idle 
> Dec  4 06:27:07 kernel: NMI backtrace for cpu 18 skipped: idling at default_idle 
> Dec  4 06:27:07 kernel: NMI backtrace for cpu 1 skipped: idling at default_idle 
> Dec  4 06:27:07 kernel: NMI backtrace for cpu 23 skipped: idling at default_idle 
> Dec  4 06:27:07 kernel: NMI backtrace for cpu 27 skipped: idling at default_idle 
> Dec  4 06:27:07 kernel: NMI backtrace for cpu 3 skipped: idling at default_idle 
> Dec  4 06:27:07 kernel: NMI backtrace for cpu 11 skipped: idling at default_idle 
> Dec  4 06:27:07 kernel: NMI backtrace for cpu 32 skipped: idling at default_idle 
> Dec  4 06:27:07 kernel: NMI backtrace for cpu 7 skipped: idling at default_idle 
> Dec  4 06:27:07 kernel: NMI backtrace for cpu 0 skipped: idling at default_idle 
> Dec  4 06:27:07 kernel: NMI backtrace for cpu 13 skipped: idling at default_idle 
> Dec  4 06:27:07 kernel: NMI backtrace for cpu 5 skipped: idling at default_idle 
> Dec  4 06:27:07 kernel: NMI backtrace for cpu 26 skipped: idling at default_idle 
> Dec  4 06:27:07 kernel: NMI backtrace for cpu 28 skipped: idling at default_idle 
> Dec  4 06:27:07 kernel: NMI backtrace for cpu 24 skipped: idling at default_idle 
> Dec  4 06:27:07 kernel: NMI backtrace for cpu 37 skipped: idling at default_idle 
> Dec  4 06:27:07 kernel: NMI backtrace for cpu 39 skipped: idling at default_idle 
> Dec  4 06:27:07 kernel: NMI backtrace for cpu 17 skipped: idling at default_idle 
> Dec  4 06:27:07 kernel: NMI backtrace for cpu 22 skipped: idling at default_idle 
> Dec  4 06:27:07 kernel: NMI backtrace for cpu 31 skipped: idling at default_idle 
> Dec  4 06:27:07 kernel: NMI backtrace for cpu 8 skipped: idling at default_idle 
> Dec  4 06:27:07 kernel: NMI backtrace for cpu 21 skipped: idling at default_idle 
> Dec  4 06:27:07 kernel: NMI backtrace for cpu 29 skipped: idling at default_idle 
> Dec  4 06:27:07 kernel: NMI backtrace for cpu 14 skipped: idling at default_idle 
> Dec  4 06:27:07 kernel: NMI backtrace for cpu 2 skipped: idling at default_idle 
> Dec  4 06:27:07 kernel: NMI backtrace for cpu 9 skipped: idling at default_idle 
> Dec  4 06:27:07 kernel: NMI backtrace for cpu 35 skipped: idling at default_idle 
> Dec  4 06:27:07 kernel: NMI backtrace for cpu 25 skipped: idling at default_idle 
> Dec  4 06:27:07 kernel: NMI backtrace for cpu 15 skipped: idling at default_idle 
> Dec  4 06:27:07 kernel: NMI backtrace for cpu 36 skipped: idling at default_idle 
> Dec  4 06:27:07 kernel: NMI backtrace for cpu 19 skipped: idling at default_idle 
> Dec  4 06:27:07 kernel: NMI backtrace for cpu 34 skipped: idling at default_idle 
> Dec  4 06:27:07 kernel: NMI backtrace for cpu 38 skipped: idling at default_idle
> 
> 
> 
> 
> =====================
> SECOND UNDECODED LOG:
> =====================
> 
> Dec  3 01:58:46 kernel: ------------[ cut here ]------------
> Dec  3 01:58:46 kernel: watchdog: BUG: soft lockup - CPU#11 stuck for 21s! [kworker/11:1:866154]
> Dec  3 01:58:46 kernel: rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
> Dec  3 01:58:46 kernel: rcu: #01117-...!: (0 ticks this GP) idle=b124/1/0x4000000000000000 softirq=2109356/2109356 fqs=0
> Dec  3 01:58:46 kernel: rcu: #011(detected by 18, t=60004 jiffies, g=11126601, q=393720 ncpus=40)
> Dec  3 01:58:46 kernel: Sending NMI from CPU 18 to CPUs 17:
> Dec  3 01:58:46 kernel: rcu: rcu_preempt kthread timer wakeup didn't happen for 70001 jiffies! g11126601 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x200
> Dec  3 01:58:46 kernel: rcu: #011Possible timer handling issue on cpu=17 timer-softirq=273727
> Dec  3 01:58:46 kernel: rcu: rcu_preempt kthread starved for 70004 jiffies! g11126601 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x200 ->cpu=17
> Dec  3 01:58:46 kernel: rcu: #011Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
> Dec  3 01:58:46 kernel: rcu: RCU grace-period kthread stack dump:
> Dec  3 01:58:46 kernel: task:rcu_preempt     state:R stack:0     pid:18    tgid:18    ppid:2      flags:0x00004008
> Dec  3 01:58:46 kernel: Call Trace:
> Dec  3 01:58:46 kernel: <TASK>
> Dec  3 01:58:46 kernel: ? __pick_next_task+0x3e/0x1a0
> Dec  3 01:58:46 kernel: ? __schedule+0xfe/0x620
> Dec  3 01:58:46 kernel: ? _raw_spin_unlock_irqrestore+0xa/0x30
> Dec  3 01:58:46 kernel: ? __pfx_rcu_gp_kthread+0x10/0x10
> Dec  3 01:58:46 kernel: ? schedule+0x23/0xa0
> Dec  3 01:58:46 kernel: ? schedule_timeout+0x8b/0x160
> Dec  3 01:58:46 kernel: ? __pfx_process_timeout+0x10/0x10
> Dec  3 01:58:46 kernel: ? rcu_gp_fqs_loop+0x10b/0x500
> Dec  3 01:58:46 kernel: ? rcu_gp_kthread+0x13f/0x1d0
> Dec  3 01:58:46 kernel: ? kthread+0xcc/0x100
> Dec  3 01:58:46 kernel: ? __pfx_kthread+0x10/0x10
> Dec  3 01:58:46 kernel: ? ret_from_fork+0x2d/0x50
> Dec  3 01:58:46 kernel: ? __pfx_kthread+0x10/0x10
> Dec  3 01:58:46 kernel: ? ret_from_fork_asm+0x1a/0x30
> Dec  3 01:58:46 kernel: </TASK>
> Dec  3 02:00:48 kernel: INFO: task kworker/u165:0:746685 blocked for more than 122 seconds.
> Dec  3 02:00:48 kernel:      Not tainted 6.12.0 #64
> Dec  3 02:00:48 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> Dec  3 02:00:48 kernel: task:kworker/u165:0  state:D stack:0     pid:746685 tgid:746685 ppid:2      flags:0x00004000
> Dec  3 02:00:48 kernel: Workqueue: events_unbound linkwatch_event
> Dec  3 02:00:48 kernel: Call Trace:
> Dec  3 02:00:48 kernel: <TASK>
> Dec  3 02:00:48 kernel: __schedule+0x23f/0x620
> Dec  3 02:00:48 kernel: schedule+0x23/0xa0
> Dec  3 02:00:48 kernel: schedule_preempt_disabled+0x11/0x20
> Dec  3 02:00:48 kernel: __mutex_lock.constprop.0+0x31d/0x650
> Dec  3 02:00:48 kernel: ? __schedule+0x247/0x620
> Dec  3 02:00:48 kernel: linkwatch_event+0xa/0x30
> Dec  3 02:00:48 kernel: process_one_work+0x179/0x390
> Dec  3 02:00:48 kernel: worker_thread+0x239/0x340
> Dec  3 02:00:48 kernel: ? __pfx_worker_thread+0x10/0x10
> Dec  3 02:00:48 kernel: kthread+0xcc/0x100
> Dec  3 02:00:48 kernel: ? __pfx_kthread+0x10/0x10
> Dec  3 02:00:48 kernel: ret_from_fork+0x2d/0x50
> Dec  3 02:00:48 kernel: ? __pfx_kthread+0x10/0x10
> Dec  3 02:00:48 kernel: ret_from_fork_asm+0x1a/0x30
> Dec  3 02:00:48 kernel: </TASK>
> Dec  3 02:00:48 kernel: INFO: task kworker/5:2:900494 blocked for more than 122 seconds.
> Dec  3 02:00:48 kernel:      Not tainted 6.12.0 #64
> Dec  3 02:00:48 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> Dec  3 02:00:48 kernel: task:kworker/5:2     state:D stack:0     pid:900494 tgid:900494 ppid:2      flags:0x00004000
> Dec  3 02:00:48 kernel: Workqueue: events xfrm_state_gc_task
> Dec  3 02:00:48 kernel: Call Trace:
> Dec  3 02:00:48 kernel: <TASK>
> Dec  3 02:00:48 kernel: __schedule+0x23f/0x620
> Dec  3 02:00:48 kernel: schedule+0x23/0xa0
> Dec  3 02:00:48 kernel: schedule_timeout+0x14a/0x160
> Dec  3 02:00:48 kernel: ? __hrtimer_start_range_ns+0x20b/0x2e0
> Dec  3 02:00:48 kernel: ? kvm_clock_get_cycles+0x14/0x30
> Dec  3 02:00:48 kernel: ? ktime_get+0x34/0xc0
> Dec  3 02:00:48 kernel: ? timerqueue_del+0x2a/0x50
> Dec  3 02:00:48 kernel: __wait_for_common+0x8f/0x1d0
> Dec  3 02:00:48 kernel: ? __pfx_schedule_timeout+0x10/0x10
> Dec  3 02:00:48 kernel: wait_for_completion_state+0x1d/0x40
> Dec  3 02:00:48 kernel: __wait_rcu_gp+0x126/0x130
> Dec  3 02:00:48 kernel: synchronize_rcu_normal.part.0+0x3a/0x60
> Dec  3 02:00:48 kernel: ? __pfx_call_rcu_hurry+0x10/0x10
> Dec  3 02:00:48 kernel: ? __pfx_wakeme_after_rcu+0x10/0x10
> Dec  3 02:00:48 kernel: xfrm_state_gc_task+0x56/0xa0
> Dec  3 02:00:48 kernel: process_one_work+0x179/0x390
> Dec  3 02:00:48 kernel: worker_thread+0x239/0x340
> Dec  3 02:00:48 kernel: ? __pfx_worker_thread+0x10/0x10
> Dec  3 02:00:48 kernel: kthread+0xcc/0x100
> Dec  3 02:00:48 kernel: ? __pfx_kthread+0x10/0x10
> Dec  3 02:00:48 kernel: ret_from_fork+0x2d/0x50
> Dec  3 02:00:48 kernel: ? __pfx_kthread+0x10/0x10
> Dec  3 02:00:48 kernel: ret_from_fork_asm+0x1a/0x30
> Dec  3 02:00:48 kernel: </TASK>
> Dec  3 02:00:48 kernel: INFO: task systemd-udevd:995278 blocked for more than 122 seconds.
> Dec  3 02:00:48 kernel:      Not tainted 6.12.0 #64
> Dec  3 02:00:48 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> Dec  3 02:00:48 kernel: task:systemd-udevd   state:D stack:0     pid:995278 tgid:995278 ppid:1080   flags:0x00000002
> Dec  3 02:00:48 kernel: Call Trace:
> Dec  3 02:00:48 kernel: <TASK>
> Dec  3 02:00:48 kernel: __schedule+0x23f/0x620
> Dec  3 02:00:48 kernel: schedule+0x23/0xa0
> Dec  3 02:00:48 kernel: netlink_table_grab.part.0+0x82/0xe0
> Dec  3 02:00:48 kernel: ? __pfx_default_wake_function+0x10/0x10
> Dec  3 02:00:48 kernel: netlink_release+0x36c/0x520
> Dec  3 02:00:48 kernel: ? __pfx_netlink_hash+0x10/0x10
> Dec  3 02:00:48 kernel: ? __pfx_netlink_compare+0x10/0x10
> Dec  3 02:00:48 kernel: __sock_release+0x3a/0xc0
> Dec  3 02:00:48 kernel: sock_close+0x11/0x20
> Dec  3 02:00:48 kernel: __fput+0xdb/0x2a0
> Dec  3 02:00:48 kernel: task_work_run+0x55/0x90
> Dec  3 02:00:48 kernel: do_exit+0x279/0x4b0
> Dec  3 02:00:48 kernel: do_group_exit+0x2c/0x80
> Dec  3 02:00:48 kernel: __x64_sys_exit_group+0x14/0x20
> Dec  3 02:00:48 kernel: x64_sys_call+0x1836/0x1840
> Dec  3 02:00:48 kernel: do_syscall_64+0x79/0x150
> Dec  3 02:00:48 kernel: ? __count_memcg_events+0x4f/0xe0
> Dec  3 02:00:48 kernel: ? handle_mm_fault+0x18e/0x270
> Dec  3 02:00:48 kernel: ? do_user_addr_fault+0x34c/0x680
> Dec  3 02:00:48 kernel: ? clear_bhb_loop+0x45/0xa0
> Dec  3 02:00:48 kernel: ? clear_bhb_loop+0x45/0xa0
> Dec  3 02:00:48 kernel: ? clear_bhb_loop+0x45/0xa0
> Dec  3 02:00:48 kernel: entry_SYSCALL_64_after_hwframe+0x76/0x7e
> Dec  3 02:00:48 kernel: RIP: 0033:0x7f6cfa8d921d
> Dec  3 02:00:48 kernel: RSP: 002b:00007ffd7e081b58 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
> Dec  3 02:00:48 kernel: RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6cfa8d921d
> Dec  3 02:00:48 kernel: RDX: 00000000000000e7 RSI: fffffffffffffe88 RDI: 0000000000000000
> Dec  3 02:00:48 kernel: RBP: 00007ffd7e081c00 R08: 00005615d9e8dbb0 R09: 0000000000000004
> Dec  3 02:00:48 kernel: R10: 0000000000000018 R11: 0000000000000246 R12: 00007ffd7e081bb0
> Dec  3 02:00:48 kernel: R13: 00005615d9d0e8b0 R14: 00005615d9e8dbb0 R15: 0000000000000000
> Dec  3 02:00:48 kernel: </TASK>
> Dec  3 02:00:48 kernel: INFO: task systemd-udevd:995279 blocked for more than 122 seconds.
> Dec  3 02:00:48 kernel:      Not tainted 6.12.0 #64
> Dec  3 02:00:48 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> Dec  3 02:00:48 kernel: task:systemd-udevd   state:D stack:0     pid:995279 tgid:995279 ppid:1080   flags:0x00004002
> Dec  3 02:00:48 kernel: Call Trace:
> Dec  3 02:00:48 kernel: <TASK>
> Dec  3 02:00:48 kernel: __schedule+0x23f/0x620
> Dec  3 02:00:48 kernel: schedule+0x23/0xa0
> Dec  3 02:00:48 kernel: netlink_table_grab.part.0+0x82/0xe0
> Dec  3 02:00:48 kernel: ? __pfx_default_wake_function+0x10/0x10
> Dec  3 02:00:48 kernel: netlink_release+0x36c/0x520
> Dec  3 02:00:48 kernel: ? __pfx_netlink_hash+0x10/0x10
> Dec  3 02:00:48 kernel: ? __pfx_netlink_compare+0x10/0x10
> Dec  3 02:00:48 kernel: __sock_release+0x3a/0xc0
> Dec  3 02:00:48 kernel: sock_close+0x11/0x20
> Dec  3 02:00:48 kernel: __fput+0xdb/0x2a0
> Dec  3 02:00:48 kernel: task_work_run+0x55/0x90
> Dec  3 02:00:48 kernel: do_exit+0x279/0x4b0
> Dec  3 02:00:48 kernel: do_group_exit+0x2c/0x80
> Dec  3 02:00:48 kernel: __x64_sys_exit_group+0x14/0x20
> Dec  3 02:00:48 kernel: x64_sys_call+0x1836/0x1840
> Dec  3 02:00:48 kernel: do_syscall_64+0x79/0x150
> Dec  3 02:00:48 kernel: ? get_page_from_freelist+0x333/0x630
> Dec  3 02:00:48 kernel: ? __alloc_pages_noprof+0x186/0x350
> Dec  3 02:00:48 kernel: ? __mod_memcg_lruvec_state+0x95/0x150
> Dec  3 02:00:48 kernel: ? __lruvec_stat_mod_folio+0x80/0xd0
> Dec  3 02:00:48 kernel: ? __folio_mod_stat+0x2a/0x80
> Dec  3 02:00:48 kernel: ? _raw_spin_unlock+0xa/0x30
> Dec  3 02:00:48 kernel: ? wp_page_copy+0x4e0/0x710
> Dec  3 02:00:48 kernel: ? __pte_offset_map+0x17/0x160
> Dec  3 02:00:48 kernel: ? _raw_spin_unlock+0xa/0x30
> Dec  3 02:00:48 kernel: ? do_wp_page+0x666/0x760
> Dec  3 02:00:48 kernel: ? __handle_mm_fault+0x326/0x730
> Dec  3 02:00:48 kernel: ? __count_memcg_events+0x4f/0xe0
> Dec  3 02:00:48 kernel: ? handle_mm_fault+0x18e/0x270
> Dec  3 02:00:48 kernel: ? do_user_addr_fault+0x34c/0x680
> Dec  3 02:00:48 kernel: ? clear_bhb_loop+0x45/0xa0
> Dec  3 02:00:48 kernel: ? clear_bhb_loop+0x45/0xa0
> Dec  3 02:00:48 kernel: ? clear_bhb_loop+0x45/0xa0
> Dec  3 02:00:48 kernel: entry_SYSCALL_64_after_hwframe+0x76/0x7e
> Dec  3 02:00:48 kernel: RIP: 0033:0x7f6cfa8d921d
> Dec  3 02:00:48 kernel: RSP: 002b:00007ffd7e081b58 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
> Dec  3 02:00:48 kernel: RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6cfa8d921d
> Dec  3 02:00:48 kernel: RDX: 00000000000000e7 RSI: fffffffffffffe88 RDI: 0000000000000000
> Dec  3 02:00:48 kernel: RBP: 00007ffd7e081c00 R08: 00005615d9e932b0 R09: 0000000000000004
> Dec  3 02:00:48 kernel: R10: 0000000000000018 R11: 0000000000000246 R12: 00007ffd7e081bb0
> Dec  3 02:00:48 kernel: R13: 00005615d9d0e8b0 R14: 00005615d9e932b0 R15: 0000000000000000
> Dec  3 02:00:48 kernel: </TASK>
> Dec  3 02:00:48 kernel: INFO: task ip:998743 blocked for more than 122 seconds.
> Dec  3 02:00:48 kernel:      Not tainted 6.12.0 #64
> Dec  3 02:00:48 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> Dec  3 02:00:48 kernel: task:ip              state:D stack:0     pid:998743 tgid:998743 ppid:998736 flags:0x00000002
> Dec  3 02:00:48 kernel: Call Trace:
> Dec  3 02:00:48 kernel: <TASK>
> Dec  3 02:00:48 kernel: __schedule+0x23f/0x620
> Dec  3 02:00:48 kernel: schedule+0x23/0xa0
> Dec  3 02:00:48 kernel: schedule_preempt_disabled+0x11/0x20
> Dec  3 02:00:48 kernel: __mutex_lock.constprop.0+0x31d/0x650
> Dec  3 02:00:48 kernel: rtnetlink_rcv_msg+0x111/0x410
> Dec  3 02:00:48 kernel: ? avc_has_perm_noaudit+0x67/0xf0
> Dec  3 02:00:48 kernel: ? __pfx_rtnetlink_rcv_msg+0x10/0x10
> Dec  3 02:00:48 kernel: netlink_rcv_skb+0x54/0x100
> Dec  3 02:00:48 kernel: netlink_unicast+0x243/0x370
> Dec  3 02:00:48 kernel: netlink_sendmsg+0x1f6/0x430
> Dec  3 02:00:48 kernel: __sys_sendto+0x1f3/0x200
> Dec  3 02:00:48 kernel: ? do_read_fault+0x10a/0x1e0
> Dec  3 02:00:48 kernel: ? do_fault+0x21f/0x380
> Dec  3 02:00:48 kernel: ? pte_offset_map_nolock+0x2b/0xb0
> Dec  3 02:00:48 kernel: __x64_sys_sendto+0x20/0x30
> Dec  3 02:00:48 kernel: do_syscall_64+0x79/0x150
> Dec  3 02:00:48 kernel: ? __count_memcg_events+0x4f/0xe0
> Dec  3 02:00:48 kernel: ? handle_mm_fault+0x18e/0x270
> Dec  3 02:00:48 kernel: ? do_user_addr_fault+0x34c/0x680
> Dec  3 02:00:48 kernel: ? clear_bhb_loop+0x45/0xa0
> Dec  3 02:00:48 kernel: ? clear_bhb_loop+0x45/0xa0
> Dec  3 02:00:48 kernel: ? clear_bhb_loop+0x45/0xa0
> Dec  3 02:00:48 kernel: entry_SYSCALL_64_after_hwframe+0x76/0x7e
> Dec  3 02:00:48 kernel: RIP: 0033:0x7f287830f860
> Dec  3 02:00:48 kernel: RSP: 002b:00007ffdd4f2c518 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
> Dec  3 02:00:48 kernel: RAX: ffffffffffffffda RBX: 00007ffdd4f2cc88 RCX: 00007f287830f860
> Dec  3 02:00:48 kernel: RDX: 0000000000000020 RSI: 00007ffdd4f2c520 RDI: 0000000000000003
> Dec  3 02:00:48 kernel: RBP: 00007ffdd4f2d7e4 R08: 0000000000000000 R09: 0000000000000000
> Dec  3 02:00:48 kernel: R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
> Dec  3 02:00:48 kernel: R13: 000055969d419040 R14: 00007ffdd4f2cc78 R15: 0000000000000004
> Dec  3 02:00:48 kernel: </TASK>
> Dec  3 02:01:56 kernel: rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
> Dec  3 02:01:56 kernel: rcu: #01117-...!: (0 ticks this GP) idle=b124/1/0x4000000000000002 softirq=2109356/2109356 fqs=0
> Dec  3 02:01:56 kernel: rcu: #011(detected by 8, t=250009 jiffies, g=11126601, q=1577177 ncpus=40)
> Dec  3 02:01:56 kernel: Sending NMI from CPU 8 to CPUs 17:
> Dec  3 02:01:56 kernel: rcu: rcu_preempt kthread timer wakeup didn't happen for 260006 jiffies! g11126601 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x200
> Dec  3 02:01:56 kernel: rcu: #011Possible timer handling issue on cpu=17 timer-softirq=273727
> Dec  3 02:01:56 kernel: rcu: rcu_preempt kthread starved for 260009 jiffies! g11126601 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x200 ->cpu=17
> Dec  3 02:01:56 kernel: rcu: #011Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
> Dec  3 02:01:56 kernel: rcu: RCU grace-period kthread stack dump:
> Dec  3 02:01:56 kernel: task:rcu_preempt     state:R stack:0     pid:18    tgid:18    ppid:2      flags:0x00004008
> Dec  3 02:01:56 kernel: Call Trace:
> Dec  3 02:01:56 kernel: <TASK>
> Dec  3 02:01:56 kernel: ? __pick_next_task+0x3e/0x1a0
> Dec  3 02:01:56 kernel: ? __schedule+0xfe/0x620
> Dec  3 02:01:56 kernel: ? _raw_spin_unlock_irqrestore+0xa/0x30
> Dec  3 02:01:56 kernel: ? __pfx_rcu_gp_kthread+0x10/0x10
> Dec  3 02:01:56 kernel: ? schedule+0x23/0xa0
> Dec  3 02:01:56 kernel: ? schedule_timeout+0x8b/0x160
> Dec  3 02:01:56 kernel: ? __pfx_process_timeout+0x10/0x10
> Dec  3 02:01:56 kernel: ? rcu_gp_fqs_loop+0x10b/0x500
> Dec  3 02:01:56 kernel: ? rcu_gp_kthread+0x13f/0x1d0
> Dec  3 02:01:56 kernel: ? kthread+0xcc/0x100
> Dec  3 02:01:56 kernel: ? __pfx_kthread+0x10/0x10
> Dec  3 02:01:56 kernel: ? ret_from_fork+0x2d/0x50
> Dec  3 02:01:56 kernel: ? __pfx_kthread+0x10/0x10
> Dec  3 02:01:56 kernel: ? ret_from_fork_asm+0x1a/0x30
> Dec  3 02:01:56 kernel: </TASK>
> Dec  3 02:02:51 kernel: INFO: task kworker/u165:0:746685 blocked for more than 245 seconds.
> Dec  3 02:02:51 kernel:      Not tainted 6.12.0 #64
> Dec  3 02:02:51 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> Dec  3 02:02:51 kernel: task:kworker/u165:0  state:D stack:0     pid:746685 tgid:746685 ppid:2      flags:0x00004000
> Dec  3 02:02:51 kernel: Workqueue: events_unbound linkwatch_event
> Dec  3 02:02:51 kernel: Call Trace:
> Dec  3 02:02:51 kernel: <TASK>
> Dec  3 02:02:51 kernel: __schedule+0x23f/0x620
> Dec  3 02:02:51 kernel: schedule+0x23/0xa0
> Dec  3 02:02:51 kernel: schedule_preempt_disabled+0x11/0x20
> Dec  3 02:02:51 kernel: __mutex_lock.constprop.0+0x31d/0x650
> Dec  3 02:02:51 kernel: ? __schedule+0x247/0x620
> Dec  3 02:02:51 kernel: linkwatch_event+0xa/0x30
> Dec  3 02:02:51 kernel: process_one_work+0x179/0x390
> Dec  3 02:02:51 kernel: worker_thread+0x239/0x340
> Dec  3 02:02:51 kernel: ? __pfx_worker_thread+0x10/0x10
> Dec  3 02:02:51 kernel: kthread+0xcc/0x100
> Dec  3 02:02:51 kernel: ? __pfx_kthread+0x10/0x10
> Dec  3 02:02:51 kernel: ret_from_fork+0x2d/0x50
> Dec  3 02:02:51 kernel: ? __pfx_kthread+0x10/0x10
> Dec  3 02:02:51 kernel: ret_from_fork_asm+0x1a/0x30
> Dec  3 02:02:51 kernel: </TASK>
> Dec  3 02:02:51 kernel: INFO: task kworker/5:2:900494 blocked for more than 245 seconds.
> Dec  3 02:02:51 kernel:      Not tainted 6.12.0 #64
> Dec  3 02:02:51 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> Dec  3 02:02:51 kernel: task:kworker/5:2     state:D stack:0     pid:900494 tgid:900494 ppid:2      flags:0x00004000
> Dec  3 02:02:51 kernel: Workqueue: events xfrm_state_gc_task
> Dec  3 02:02:51 kernel: Call Trace:
> Dec  3 02:02:51 kernel: <TASK>
> Dec  3 02:02:51 kernel: __schedule+0x23f/0x620
> Dec  3 02:02:51 kernel: schedule+0x23/0xa0
> Dec  3 02:02:51 kernel: schedule_timeout+0x14a/0x160
> Dec  3 02:02:51 kernel: ? __hrtimer_start_range_ns+0x20b/0x2e0
> Dec  3 02:02:51 kernel: ? kvm_clock_get_cycles+0x14/0x30
> Dec  3 02:02:51 kernel: ? ktime_get+0x34/0xc0
> Dec  3 02:02:51 kernel: ? timerqueue_del+0x2a/0x50
> Dec  3 02:02:51 kernel: __wait_for_common+0x8f/0x1d0
> Dec  3 02:02:51 kernel: ? __pfx_schedule_timeout+0x10/0x10
> Dec  3 02:02:51 kernel: wait_for_completion_state+0x1d/0x40
> Dec  3 02:02:51 kernel: __wait_rcu_gp+0x126/0x130
> Dec  3 02:02:51 kernel: synchronize_rcu_normal.part.0+0x3a/0x60
> Dec  3 02:02:51 kernel: ? __pfx_call_rcu_hurry+0x10/0x10
> Dec  3 02:02:51 kernel: ? __pfx_wakeme_after_rcu+0x10/0x10
> Dec  3 02:02:51 kernel: xfrm_state_gc_task+0x56/0xa0
> Dec  3 02:02:51 kernel: process_one_work+0x179/0x390
> Dec  3 02:02:51 kernel: worker_thread+0x239/0x340
> Dec  3 02:02:51 kernel: ? __pfx_worker_thread+0x10/0x10
> Dec  3 02:02:51 kernel: kthread+0xcc/0x100
> Dec  3 02:02:51 kernel: ? __pfx_kthread+0x10/0x10
> Dec  3 02:02:51 kernel: ret_from_fork+0x2d/0x50
> Dec  3 02:02:51 kernel: ? __pfx_kthread+0x10/0x10
> Dec  3 02:02:51 kernel: ret_from_fork_asm+0x1a/0x30
> Dec  3 02:02:51 kernel: </TASK>
> Dec  3 02:02:51 kernel: INFO: task systemd-udevd:995278 blocked for more than 245 seconds.
> Dec  3 02:02:51 kernel:      Not tainted 6.12.0 #64
> Dec  3 02:02:51 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> Dec  3 02:02:51 kernel: task:systemd-udevd   state:D stack:0     pid:995278 tgid:995278 ppid:1080   flags:0x00000002
> Dec  3 02:02:51 kernel: Call Trace:
> Dec  3 02:02:51 kernel: <TASK>
> Dec  3 02:02:51 kernel: __schedule+0x23f/0x620
> Dec  3 02:02:51 kernel: schedule+0x23/0xa0
> Dec  3 02:02:51 kernel: netlink_table_grab.part.0+0x82/0xe0
> Dec  3 02:02:51 kernel: ? __pfx_default_wake_function+0x10/0x10
> Dec  3 02:02:51 kernel: netlink_release+0x36c/0x520
> Dec  3 02:02:51 kernel: ? __pfx_netlink_hash+0x10/0x10
> Dec  3 02:02:51 kernel: ? __pfx_netlink_compare+0x10/0x10
> Dec  3 02:02:51 kernel: __sock_release+0x3a/0xc0
> Dec  3 02:02:51 kernel: sock_close+0x11/0x20
> Dec  3 02:02:51 kernel: __fput+0xdb/0x2a0
> Dec  3 02:02:51 kernel: task_work_run+0x55/0x90
> Dec  3 02:02:51 kernel: do_exit+0x279/0x4b0
> Dec  3 02:02:51 kernel: do_group_exit+0x2c/0x80
> Dec  3 02:02:51 kernel: __x64_sys_exit_group+0x14/0x20
> Dec  3 02:02:51 kernel: x64_sys_call+0x1836/0x1840
> Dec  3 02:02:51 kernel: do_syscall_64+0x79/0x150
> Dec  3 02:02:51 kernel: ? __count_memcg_events+0x4f/0xe0
> Dec  3 02:02:51 kernel: ? handle_mm_fault+0x18e/0x270
> Dec  3 02:02:51 kernel: ? do_user_addr_fault+0x34c/0x680
> Dec  3 02:02:51 kernel: ? clear_bhb_loop+0x45/0xa0
> Dec  3 02:02:51 kernel: ? clear_bhb_loop+0x45/0xa0
> Dec  3 02:02:51 kernel: ? clear_bhb_loop+0x45/0xa0
> Dec  3 02:02:51 kernel: entry_SYSCALL_64_after_hwframe+0x76/0x7e
> Dec  3 02:02:51 kernel: RIP: 0033:0x7f6cfa8d921d
> Dec  3 02:02:51 kernel: RSP: 002b:00007ffd7e081b58 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
> Dec  3 02:02:51 kernel: RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6cfa8d921d
> Dec  3 02:02:51 kernel: RDX: 00000000000000e7 RSI: fffffffffffffe88 RDI: 0000000000000000
> Dec  3 02:02:51 kernel: RBP: 00007ffd7e081c00 R08: 00005615d9e8dbb0 R09: 0000000000000004
> Dec  3 02:02:51 kernel: R10: 0000000000000018 R11: 0000000000000246 R12: 00007ffd7e081bb0
> Dec  3 02:02:51 kernel: R13: 00005615d9d0e8b0 R14: 00005615d9e8dbb0 R15: 0000000000000000
> Dec  3 02:02:51 kernel: </TASK>
> Dec  3 02:02:51 kernel: INFO: task systemd-udevd:995279 blocked for more than 245 seconds.
> Dec  3 02:02:51 kernel:      Not tainted 6.12.0 #64
> Dec  3 02:02:51 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> Dec  3 02:02:51 kernel: task:systemd-udevd   state:D stack:0     pid:995279 tgid:995279 ppid:1080   flags:0x00004002
> Dec  3 02:02:51 kernel: Call Trace:
> Dec  3 02:02:51 kernel: <TASK>
> Dec  3 02:02:51 kernel: __schedule+0x23f/0x620
> Dec  3 02:02:51 kernel: schedule+0x23/0xa0
> Dec  3 02:02:51 kernel: netlink_table_grab.part.0+0x82/0xe0
> Dec  3 02:02:51 kernel: ? __pfx_default_wake_function+0x10/0x10
> Dec  3 02:02:51 kernel: netlink_release+0x36c/0x520
> Dec  3 02:02:51 kernel: ? __pfx_netlink_hash+0x10/0x10
> Dec  3 02:02:51 kernel: ? __pfx_netlink_compare+0x10/0x10
> Dec  3 02:02:51 kernel: __sock_release+0x3a/0xc0
> Dec  3 02:02:51 kernel: sock_close+0x11/0x20
> Dec  3 02:02:51 kernel: __fput+0xdb/0x2a0
> Dec  3 02:02:51 kernel: task_work_run+0x55/0x90
> Dec  3 02:02:51 kernel: do_exit+0x279/0x4b0
> Dec  3 02:02:51 kernel: do_group_exit+0x2c/0x80
> Dec  3 02:02:51 kernel: __x64_sys_exit_group+0x14/0x20
> Dec  3 02:02:51 kernel: x64_sys_call+0x1836/0x1840
> Dec  3 02:02:51 kernel: do_syscall_64+0x79/0x150
> Dec  3 02:02:51 kernel: ? get_page_from_freelist+0x333/0x630
> Dec  3 02:02:51 kernel: ? __alloc_pages_noprof+0x186/0x350
> Dec  3 02:02:51 kernel: ? __mod_memcg_lruvec_state+0x95/0x150
> Dec  3 02:02:51 kernel: ? __lruvec_stat_mod_folio+0x80/0xd0
> Dec  3 02:02:51 kernel: ? __folio_mod_stat+0x2a/0x80
> Dec  3 02:02:51 kernel: ? _raw_spin_unlock+0xa/0x30
> Dec  3 02:02:51 kernel: ? wp_page_copy+0x4e0/0x710
> Dec  3 02:02:51 kernel: ? __pte_offset_map+0x17/0x160
> Dec  3 02:02:51 kernel: ? _raw_spin_unlock+0xa/0x30
> Dec  3 02:02:51 kernel: ? do_wp_page+0x666/0x760
> Dec  3 02:02:51 kernel: ? __handle_mm_fault+0x326/0x730
> Dec  3 02:02:51 kernel: ? __count_memcg_events+0x4f/0xe0
> Dec  3 02:02:51 kernel: ? handle_mm_fault+0x18e/0x270
> Dec  3 02:02:51 kernel: ? do_user_addr_fault+0x34c/0x680
> Dec  3 02:02:51 kernel: ? clear_bhb_loop+0x45/0xa0
> Dec  3 02:02:51 kernel: ? clear_bhb_loop+0x45/0xa0
> Dec  3 02:02:51 kernel: ? clear_bhb_loop+0x45/0xa0
> Dec  3 02:02:51 kernel: entry_SYSCALL_64_after_hwframe+0x76/0x7e
> Dec  3 02:02:51 kernel: RIP: 0033:0x7f6cfa8d921d
> Dec  3 02:02:51 kernel: RSP: 002b:00007ffd7e081b58 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
> Dec  3 02:02:51 kernel: RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6cfa8d921d
> Dec  3 02:02:51 kernel: RDX: 00000000000000e7 RSI: fffffffffffffe88 RDI: 0000000000000000
> Dec  3 02:02:51 kernel: RBP: 00007ffd7e081c00 R08: 00005615d9e932b0 R09: 0000000000000004
> Dec  3 02:02:51 kernel: R10: 0000000000000018 R11: 0000000000000246 R12: 00007ffd7e081bb0
> Dec  3 02:02:51 kernel: R13: 00005615d9d0e8b0 R14: 00005615d9e932b0 R15: 0000000000000000
> Dec  3 02:02:51 kernel: </TASK>
> Dec  3 02:02:51 kernel: INFO: task ip:998743 blocked for more than 245 seconds.
> Dec  3 02:02:51 kernel:      Not tainted 6.12.0 #64
> Dec  3 02:02:51 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> Dec  3 02:02:51 kernel: task:ip              state:D stack:0     pid:998743 tgid:998743 ppid:998736 flags:0x00000002
> Dec  3 02:02:51 kernel: Call Trace:
> Dec  3 02:02:51 kernel: <TASK>
> Dec  3 02:02:51 kernel: __schedule+0x23f/0x620
> Dec  3 02:02:51 kernel: schedule+0x23/0xa0
> Dec  3 02:02:51 kernel: schedule_preempt_disabled+0x11/0x20
> Dec  3 02:02:51 kernel: __mutex_lock.constprop.0+0x31d/0x650
> Dec  3 02:02:51 kernel: rtnetlink_rcv_msg+0x111/0x410
> Dec  3 02:02:51 kernel: ? avc_has_perm_noaudit+0x67/0xf0
> Dec  3 02:02:51 kernel: ? __pfx_rtnetlink_rcv_msg+0x10/0x10
> Dec  3 02:02:51 kernel: netlink_rcv_skb+0x54/0x100
> Dec  3 02:02:51 kernel: netlink_unicast+0x243/0x370
> Dec  3 02:02:51 kernel: netlink_sendmsg+0x1f6/0x430
> Dec  3 02:02:51 kernel: __sys_sendto+0x1f3/0x200
> Dec  3 02:02:51 kernel: ? do_read_fault+0x10a/0x1e0
> Dec  3 02:02:51 kernel: ? do_fault+0x21f/0x380
> Dec  3 02:02:51 kernel: ? pte_offset_map_nolock+0x2b/0xb0
> Dec  3 02:02:51 kernel: __x64_sys_sendto+0x20/0x30
> Dec  3 02:02:51 kernel: do_syscall_64+0x79/0x150
> Dec  3 02:02:51 kernel: ? __count_memcg_events+0x4f/0xe0
> Dec  3 02:02:51 kernel: ? handle_mm_fault+0x18e/0x270
> Dec  3 02:02:51 kernel: ? do_user_addr_fault+0x34c/0x680
> Dec  3 02:02:51 kernel: ? clear_bhb_loop+0x45/0xa0
> Dec  3 02:02:51 kernel: ? clear_bhb_loop+0x45/0xa0
> Dec  3 02:02:51 kernel: ? clear_bhb_loop+0x45/0xa0
> Dec  3 02:02:51 kernel: entry_SYSCALL_64_after_hwframe+0x76/0x7e
> Dec  3 02:02:51 kernel: RIP: 0033:0x7f287830f860
> Dec  3 02:02:51 kernel: RSP: 002b:00007ffdd4f2c518 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
> Dec  3 02:02:51 kernel: RAX: ffffffffffffffda RBX: 00007ffdd4f2cc88 RCX: 00007f287830f860
> Dec  3 02:02:51 kernel: RDX: 0000000000000020 RSI: 00007ffdd4f2c520 RDI: 0000000000000003
> Dec  3 02:02:51 kernel: RBP: 00007ffdd4f2d7e4 R08: 0000000000000000 R09: 0000000000000000
> Dec  3 02:02:51 kernel: R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
> Dec  3 02:02:51 kernel: R13: 000055969d419040 R14: 00007ffdd4f2cc78 R15: 0000000000000004
> Dec  3 02:02:51 kernel: </TASK>
> Dec  3 02:02:51 kernel: Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings
> Dec  3 02:05:06 kernel: rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
> Dec  3 02:05:06 kernel: rcu: #01117-...!: (0 ticks this GP) idle=b124/1/0x4000000000000002 softirq=2109356/2109356 fqs=0
> Dec  3 02:05:06 kernel: rcu: #011(detected by 5, t=440015 jiffies, g=11126601, q=2760447 ncpus=40)
> Dec  3 02:05:06 kernel: Sending NMI from CPU 5 to CPUs 17:
> Dec  3 02:05:06 kernel: rcu: rcu_preempt kthread timer wakeup didn't happen for 450012 jiffies! g11126601 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x200
> Dec  3 02:05:06 kernel: rcu: #011Possible timer handling issue on cpu=17 timer-softirq=273727
> Dec  3 02:05:06 kernel: rcu: rcu_preempt kthread starved for 450015 jiffies! g11126601 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x200 ->cpu=17
> Dec  3 02:05:06 kernel: rcu: #011Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
> Dec  3 02:05:06 kernel: rcu: RCU grace-period kthread stack dump:
> Dec  3 02:05:06 kernel: task:rcu_preempt     state:R stack:0     pid:18    tgid:18    ppid:2      flags:0x00004008
> Dec  3 02:05:06 kernel: Call Trace:
> Dec  3 02:05:06 kernel: <TASK>
> Dec  3 02:05:06 kernel: ? __pick_next_task+0x3e/0x1a0
> Dec  3 02:05:06 kernel: ? __schedule+0xfe/0x620
> Dec  3 02:05:06 kernel: ? _raw_spin_unlock_irqrestore+0xa/0x30
> Dec  3 02:05:06 kernel: ? __pfx_rcu_gp_kthread+0x10/0x10
> Dec  3 02:05:06 kernel: ? schedule+0x23/0xa0
> Dec  3 02:05:06 kernel: ? schedule_timeout+0x8b/0x160
> Dec  3 02:05:06 kernel: ? __pfx_process_timeout+0x10/0x10
> Dec  3 02:05:06 kernel: ? rcu_gp_fqs_loop+0x10b/0x500
> Dec  3 02:05:06 kernel: ? rcu_gp_kthread+0x13f/0x1d0
> Dec  3 02:05:06 kernel: ? kthread+0xcc/0x100
> Dec  3 02:05:06 kernel: ? __pfx_kthread+0x10/0x10
> Dec  3 02:05:06 kernel: ? ret_from_fork+0x2d/0x50
> Dec  3 02:05:06 kernel: ? __pfx_kthread+0x10/0x10
> Dec  3 02:05:06 kernel: ? ret_from_fork_asm+0x1a/0x30
> Dec  3 02:05:06 kernel: </TASK>
> Dec  3 02:08:16 kernel: rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
> Dec  3 02:08:16 kernel: rcu: #01117-...!: (0 ticks this GP) idle=b124/1/0x4000000000000002 softirq=2109356/2109356 fqs=0
> Dec  3 02:08:16 kernel: rcu: #011(detected by 15, t=630022 jiffies, g=11126601, q=3942985 ncpus=40)
> Dec  3 02:08:16 kernel: Sending NMI from CPU 15 to CPUs 17:
> Dec  3 02:08:16 kernel: rcu: rcu_preempt kthread timer wakeup didn't happen for 640019 jiffies! g11126601 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x200
> Dec  3 02:08:16 kernel: rcu: #011Possible timer handling issue on cpu=17 timer-softirq=273727
> Dec  3 02:08:16 kernel: rcu: rcu_preempt kthread starved for 640022 jiffies! g11126601 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x200 ->cpu=17
> Dec  3 02:08:16 kernel: rcu: #011Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
> Dec  3 02:08:16 kernel: rcu: RCU grace-period kthread stack dump:
> Dec  3 02:08:16 kernel: task:rcu_preempt     state:R stack:0     pid:18    tgid:18    ppid:2      flags:0x00004008
> Dec  3 02:08:16 kernel: Call Trace:
> Dec  3 02:08:16 kernel: <TASK>
> Dec  3 02:08:16 kernel: ? __pick_next_task+0x3e/0x1a0
> Dec  3 02:08:16 kernel: ? __schedule+0xfe/0x620
> Dec  3 02:08:16 kernel: ? _raw_spin_unlock_irqrestore+0xa/0x30
> Dec  3 02:08:16 kernel: ? __pfx_rcu_gp_kthread+0x10/0x10
> Dec  3 02:08:16 kernel: ? schedule+0x23/0xa0
> Dec  3 02:08:16 kernel: ? schedule_timeout+0x8b/0x160
> Dec  3 02:08:16 kernel: ? __pfx_process_timeout+0x10/0x10
> Dec  3 02:08:16 kernel: ? rcu_gp_fqs_loop+0x10b/0x500
> Dec  3 02:08:16 kernel: ? rcu_gp_kthread+0x13f/0x1d0
> Dec  3 02:08:16 kernel: ? kthread+0xcc/0x100
> Dec  3 02:08:16 kernel: ? __pfx_kthread+0x10/0x10
> Dec  3 02:08:16 kernel: ? ret_from_fork+0x2d/0x50
> Dec  3 02:08:16 kernel: ? __pfx_kthread+0x10/0x10
> Dec  3 02:08:16 kernel: ? ret_from_fork_asm+0x1a/0x30
> Dec  3 02:08:16 kernel: </TASK>
> Dec  3 02:11:26 kernel: rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
> Dec  3 02:11:26 kernel: rcu: #01117-...!: (0 ticks this GP) idle=b124/1/0x4000000000000002 softirq=2109356/2109356 fqs=0
> Dec  3 02:11:26 kernel: rcu: #011(detected by 13, t=820027 jiffies, g=11126601, q=5124103 ncpus=40)
> Dec  3 02:11:26 kernel: Sending NMI from CPU 13 to CPUs 17:
> Dec  3 02:11:26 kernel: rcu: rcu_preempt kthread timer wakeup didn't happen for 830024 jiffies! g11126601 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x200
> Dec  3 02:11:26 kernel: rcu: #011Possible timer handling issue on cpu=17 timer-softirq=273727
> Dec  3 02:11:26 kernel: rcu: rcu_preempt kthread starved for 830027 jiffies! g11126601 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x200 ->cpu=17
> Dec  3 02:11:26 kernel: rcu: #011Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
> Dec  3 02:11:26 kernel: rcu: RCU grace-period kthread stack dump:
> Dec  3 02:11:26 kernel: task:rcu_preempt     state:R stack:0     pid:18    tgid:18    ppid:2      flags:0x00004008
> Dec  3 02:11:26 kernel: Call Trace:
> Dec  3 02:11:26 kernel: <TASK>
> Dec  3 02:11:26 kernel: ? __pick_next_task+0x3e/0x1a0
> Dec  3 02:11:26 kernel: ? __schedule+0xfe/0x620
> Dec  3 02:11:26 kernel: ? _raw_spin_unlock_irqrestore+0xa/0x30
> Dec  3 02:11:26 kernel: ? __pfx_rcu_gp_kthread+0x10/0x10
> Dec  3 02:11:26 kernel: ? schedule+0x23/0xa0
> Dec  3 02:11:26 kernel: ? schedule_timeout+0x8b/0x160
> Dec  3 02:11:26 kernel: ? __pfx_process_timeout+0x10/0x10
> Dec  3 02:11:26 kernel: ? rcu_gp_fqs_loop+0x10b/0x500
> Dec  3 02:11:26 kernel: ? rcu_gp_kthread+0x13f/0x1d0
> Dec  3 02:11:26 kernel: ? kthread+0xcc/0x100
> Dec  3 02:11:26 kernel: ? __pfx_kthread+0x10/0x10
> Dec  3 02:11:26 kernel: ? ret_from_fork+0x2d/0x50
> Dec  3 02:11:26 kernel: ? __pfx_kthread+0x10/0x10
> Dec  3 02:11:26 kernel: ? ret_from_fork_asm+0x1a/0x30
> Dec  3 02:11:26 kernel: </TASK>
> Dec  3 02:14:36 kernel: rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
> Dec  3 02:14:36 kernel: rcu: #01117-...!: (0 ticks this GP) idle=b124/1/0x4000000000000002 softirq=2109356/2109356 fqs=0
> Dec  3 02:14:36 kernel: rcu: #011(detected by 29, t=1010032 jiffies, g=11126601, q=6331978 ncpus=40)
> Dec  3 02:14:36 kernel: Sending NMI from CPU 29 to CPUs 17:
> Dec  3 02:14:36 kernel: rcu: rcu_preempt kthread timer wakeup didn't happen for 1020029 jiffies! g11126601 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x200
> Dec  3 02:14:36 kernel: rcu: #011Possible timer handling issue on cpu=17 timer-softirq=273727
> Dec  3 02:14:36 kernel: rcu: rcu_preempt kthread starved for 1020032 jiffies! g11126601 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x200 ->cpu=17
> Dec  3 02:14:36 kernel: rcu: #011Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
> Dec  3 02:14:36 kernel: rcu: RCU grace-period kthread stack dump:
> Dec  3 02:14:36 kernel: task:rcu_preempt     state:R stack:0     pid:18    tgid:18    ppid:2      flags:0x00004008
> Dec  3 02:14:36 kernel: Call Trace:
> Dec  3 02:14:36 kernel: <TASK>
> Dec  3 02:14:36 kernel: ? __pick_next_task+0x3e/0x1a0
> Dec  3 02:14:36 kernel: ? __schedule+0xfe/0x620
> Dec  3 02:14:36 kernel: ? _raw_spin_unlock_irqrestore+0xa/0x30
> Dec  3 02:14:36 kernel: ? __pfx_rcu_gp_kthread+0x10/0x10
> Dec  3 02:14:36 kernel: ? schedule+0x23/0xa0
> Dec  3 02:14:36 kernel: ? schedule_timeout+0x8b/0x160
> Dec  3 02:14:36 kernel: ? __pfx_process_timeout+0x10/0x10
> Dec  3 02:14:36 kernel: ? rcu_gp_fqs_loop+0x10b/0x500
> Dec  3 02:14:36 kernel: ? rcu_gp_kthread+0x13f/0x1d0
> Dec  3 02:14:36 kernel: ? kthread+0xcc/0x100
> Dec  3 02:14:36 kernel: ? __pfx_kthread+0x10/0x10
> Dec  3 02:14:36 kernel: ? ret_from_fork+0x2d/0x50
> Dec  3 02:14:36 kernel: ? __pfx_kthread+0x10/0x10
> Dec  3 02:14:36 kernel: ? ret_from_fork_asm+0x1a/0x30
> Dec  3 02:14:36 kernel: </TASK>
> Dec  3 02:17:46 kernel: rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
> Dec  3 02:17:46 kernel: rcu: #01117-...!: (0 ticks this GP) idle=b124/1/0x4000000000000002 softirq=2109356/2109356 fqs=0
> Dec  3 02:17:46 kernel: rcu: #011(detected by 8, t=1200037 jiffies, g=11126601, q=7535150 ncpus=40)
> Dec  3 02:17:46 kernel: Sending NMI from CPU 8 to CPUs 17:
> Dec  3 02:17:46 kernel: rcu: rcu_preempt kthread timer wakeup didn't happen for 1210034 jiffies! g11126601 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x200
> Dec  3 02:17:46 kernel: rcu: #011Possible timer handling issue on cpu=17 timer-softirq=273727
> Dec  3 02:17:46 kernel: rcu: rcu_preempt kthread starved for 1210037 jiffies! g11126601 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x200 ->cpu=17
> Dec  3 02:17:46 kernel: rcu: #011Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
> Dec  3 02:17:46 kernel: rcu: RCU grace-period kthread stack dump:
> Dec  3 02:17:46 kernel: task:rcu_preempt     state:R stack:0     pid:18    tgid:18    ppid:2      flags:0x00004008
> Dec  3 02:17:46 kernel: Call Trace:
> Dec  3 02:17:46 kernel: <TASK>
> Dec  3 02:17:46 kernel: ? __pick_next_task+0x3e/0x1a0
> Dec  3 02:17:46 kernel: ? __schedule+0xfe/0x620
> Dec  3 02:17:46 kernel: ? _raw_spin_unlock_irqrestore+0xa/0x30
> Dec  3 02:17:46 kernel: ? __pfx_rcu_gp_kthread+0x10/0x10
> Dec  3 02:17:46 kernel: ? schedule+0x23/0xa0
> Dec  3 02:17:46 kernel: ? schedule_timeout+0x8b/0x160
> Dec  3 02:17:46 kernel: ? __pfx_process_timeout+0x10/0x10
> Dec  3 02:17:46 kernel: ? rcu_gp_fqs_loop+0x10b/0x500
> Dec  3 02:17:46 kernel: ? rcu_gp_kthread+0x13f/0x1d0
> Dec  3 02:17:46 kernel: ? kthread+0xcc/0x100
> Dec  3 02:17:46 kernel: ? __pfx_kthread+0x10/0x10
> Dec  3 02:17:46 kernel: ? ret_from_fork+0x2d/0x50
> Dec  3 02:17:46 kernel: ? __pfx_kthread+0x10/0x10
> Dec  3 02:17:46 kernel: ? ret_from_fork_asm+0x1a/0x30
> Dec  3 02:17:46 kernel: </TASK>
> Dec  3 02:20:56 kernel: rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
> Dec  3 02:20:56 kernel: rcu: #01117-...!: (0 ticks this GP) idle=b124/1/0x4000000000000002 softirq=2109356/2109356 fqs=0
> Dec  3 02:20:56 kernel: rcu: #011(detected by 8, t=1390043 jiffies, g=11126601, q=8740806 ncpus=40)
> Dec  3 02:20:56 kernel: Sending NMI from CPU 8 to CPUs 17:
> Dec  3 02:20:56 kernel: rcu: rcu_preempt kthread timer wakeup didn't happen for 1400040 jiffies! g11126601 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x200
> Dec  3 02:20:56 kernel: rcu: #011Possible timer handling issue on cpu=17 timer-softirq=273727
> Dec  3 02:20:56 kernel: rcu: rcu_preempt kthread starved for 1400043 jiffies! g11126601 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x200 ->cpu=17
> Dec  3 02:20:56 kernel: rcu: #011Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
> Dec  3 02:20:56 kernel: rcu: RCU grace-period kthread stack dump:
> Dec  3 02:20:56 kernel: task:rcu_preempt     state:R stack:0     pid:18    tgid:18    ppid:2      flags:0x00004008
> Dec  3 02:20:56 kernel: Call Trace:
> Dec  3 02:20:56 kernel: <TASK>
> Dec  3 02:20:56 kernel: ? __pick_next_task+0x3e/0x1a0
> Dec  3 02:20:56 kernel: ? __schedule+0xfe/0x620
> Dec  3 02:20:56 kernel: ? _raw_spin_unlock_irqrestore+0xa/0x30
> Dec  3 02:20:56 kernel: ? __pfx_rcu_gp_kthread+0x10/0x10
> Dec  3 02:20:56 kernel: ? schedule+0x23/0xa0
> Dec  3 02:20:56 kernel: ? schedule_timeout+0x8b/0x160
> Dec  3 02:20:56 kernel: ? __pfx_process_timeout+0x10/0x10
> Dec  3 02:20:56 kernel: ? rcu_gp_fqs_loop+0x10b/0x500
> Dec  3 02:20:56 kernel: ? rcu_gp_kthread+0x13f/0x1d0
> Dec  3 02:20:56 kernel: ? kthread+0xcc/0x100
> Dec  3 02:20:56 kernel: ? __pfx_kthread+0x10/0x10
> Dec  3 02:20:56 kernel: ? ret_from_fork+0x2d/0x50
> Dec  3 02:20:56 kernel: ? __pfx_kthread+0x10/0x10
> Dec  3 02:20:56 kernel: ? ret_from_fork_asm+0x1a/0x30
> Dec  3 02:20:56 kernel: </TASK>
> Dec  3 02:24:06 kernel: rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
> Dec  3 02:24:06 kernel: rcu: #01117-...!: (0 ticks this GP) idle=b124/1/0x4000000000000002 softirq=2109356/2109356 fqs=0
> Dec  3 02:24:06 kernel: rcu: #011(detected by 23, t=1580048 jiffies, g=11126601, q=9924647 ncpus=40)
> Dec  3 02:24:06 kernel: Sending NMI from CPU 23 to CPUs 17:
> Dec  3 02:24:06 kernel: rcu: rcu_preempt kthread timer wakeup didn't happen for 1590045 jiffies! g11126601 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x200
> Dec  3 02:24:06 kernel: rcu: #011Possible timer handling issue on cpu=17 timer-softirq=273727
> Dec  3 02:24:06 kernel: rcu: rcu_preempt kthread starved for 1590048 jiffies! g11126601 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x200 ->cpu=17
> Dec  3 02:24:06 kernel: rcu: #011Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
> Dec  3 02:24:06 kernel: rcu: RCU grace-period kthread stack dump:
> Dec  3 02:24:06 kernel: task:rcu_preempt     state:R stack:0     pid:18    tgid:18    ppid:2      flags:0x00004008
> Dec  3 02:24:06 kernel: Call Trace:
> Dec  3 02:24:06 kernel: <TASK>
> Dec  3 02:24:06 kernel: ? __pick_next_task+0x3e/0x1a0
> Dec  3 02:24:06 kernel: ? __schedule+0xfe/0x620
> Dec  3 02:24:06 kernel: ? _raw_spin_unlock_irqrestore+0xa/0x30
> Dec  3 02:24:06 kernel: ? __pfx_rcu_gp_kthread+0x10/0x10
> Dec  3 02:24:06 kernel: ? schedule+0x23/0xa0
> Dec  3 02:24:06 kernel: ? schedule_timeout+0x8b/0x160
> Dec  3 02:24:06 kernel: ? __pfx_process_timeout+0x10/0x10
> Dec  3 02:24:06 kernel: ? rcu_gp_fqs_loop+0x10b/0x500
> Dec  3 02:24:06 kernel: ? rcu_gp_kthread+0x13f/0x1d0
> Dec  3 02:24:06 kernel: ? kthread+0xcc/0x100
> Dec  3 02:24:06 kernel: ? __pfx_kthread+0x10/0x10
> Dec  3 02:24:06 kernel: ? ret_from_fork+0x2d/0x50
> Dec  3 02:24:06 kernel: ? __pfx_kthread+0x10/0x10
> Dec  3 02:24:06 kernel: ? ret_from_fork_asm+0x1a/0x30
> Dec  3 02:24:06 kernel: </TASK>
> Dec  3 02:27:16 kernel: rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
> Dec  3 02:27:16 kernel: rcu: #01117-...!: (0 ticks this GP) idle=b124/1/0x4000000000000002 softirq=2109356/2109356 fqs=0
> Dec  3 02:27:16 kernel: rcu: #011(detected by 18, t=1770053 jiffies, g=11126601, q=11108597 ncpus=40)
> Dec  3 02:27:16 kernel: Sending NMI from CPU 18 to CPUs 17:
> Dec  3 02:27:16 kernel: rcu: rcu_preempt kthread timer wakeup didn't happen for 1780050 jiffies! g11126601 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x200
> Dec  3 02:27:16 kernel: rcu: #011Possible timer handling issue on cpu=17 timer-softirq=273727
> Dec  3 02:27:16 kernel: rcu: rcu_preempt kthread starved for 1780053 jiffies! g11126601 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x200 ->cpu=17
> Dec  3 02:27:16 kernel: rcu: #011Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
> Dec  3 02:27:16 kernel: rcu: RCU grace-period kthread stack dump:
> Dec  3 02:27:16 kernel: task:rcu_preempt     state:R stack:0     pid:18    tgid:18    ppid:2      flags:0x00004008
> Dec  3 02:27:16 kernel: Call Trace:
> Dec  3 02:27:16 kernel: <TASK>
> Dec  3 02:27:16 kernel: ? __pick_next_task+0x3e/0x1a0
> Dec  3 02:27:16 kernel: ? __schedule+0xfe/0x620
> Dec  3 02:27:16 kernel: ? _raw_spin_unlock_irqrestore+0xa/0x30
> Dec  3 02:27:16 kernel: ? __pfx_rcu_gp_kthread+0x10/0x10
> Dec  3 02:27:16 kernel: ? schedule+0x23/0xa0
> Dec  3 02:27:16 kernel: ? schedule_timeout+0x8b/0x160
> Dec  3 02:27:16 kernel: ? __pfx_process_timeout+0x10/0x10
> Dec  3 02:27:16 kernel: ? rcu_gp_fqs_loop+0x10b/0x500
> Dec  3 02:27:16 kernel: ? rcu_gp_kthread+0x13f/0x1d0
> Dec  3 02:27:16 kernel: ? kthread+0xcc/0x100
> Dec  3 02:27:16 kernel: ? __pfx_kthread+0x10/0x10
> Dec  3 02:27:16 kernel: ? ret_from_fork+0x2d/0x50
> Dec  3 02:27:16 kernel: ? __pfx_kthread+0x10/0x10
> Dec  3 02:27:16 kernel: ? ret_from_fork_asm+0x1a/0x30
> Dec  3 02:27:16 kernel: </TASK>
> Dec  3 02:30:26 kernel: rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
> Dec  3 02:30:26 kernel: rcu: #01117-...!: (0 ticks this GP) idle=b124/1/0x4000000000000002 softirq=2109356/2109356 fqs=0
> Dec  3 02:30:26 kernel: rcu: #011(detected by 1, t=1960059 jiffies, g=11126601, q=12298028 ncpus=40)
> Dec  3 02:30:26 kernel: Sending NMI from CPU 1 to CPUs 17:
> Dec  3 02:30:26 kernel: rcu: rcu_preempt kthread timer wakeup didn't happen for 1970056 jiffies! g11126601 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x200
> Dec  3 02:30:26 kernel: rcu: #011Possible timer handling issue on cpu=17 timer-softirq=273727
> Dec  3 02:30:26 kernel: rcu: rcu_preempt kthread starved for 1970059 jiffies! g11126601 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x200 ->cpu=17
> Dec  3 02:30:26 kernel: rcu: #011Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
> Dec  3 02:30:26 kernel: rcu: RCU grace-period kthread stack dump:
> Dec  3 02:30:26 kernel: task:rcu_preempt     state:R stack:0     pid:18    tgid:18    ppid:2      flags:0x00004008
> Dec  3 02:30:26 kernel: Call Trace:
> Dec  3 02:30:26 kernel: <TASK>
> Dec  3 02:30:26 kernel: ? __pick_next_task+0x3e/0x1a0
> Dec  3 02:30:26 kernel: ? __schedule+0xfe/0x620
> Dec  3 02:30:26 kernel: ? _raw_spin_unlock_irqrestore+0xa/0x30
> Dec  3 02:30:26 kernel: ? __pfx_rcu_gp_kthread+0x10/0x10
> Dec  3 02:30:26 kernel: ? schedule+0x23/0xa0
> Dec  3 02:30:26 kernel: ? schedule_timeout+0x8b/0x160
> Dec  3 02:30:26 kernel: ? __pfx_process_timeout+0x10/0x10
> Dec  3 02:30:26 kernel: ? rcu_gp_fqs_loop+0x10b/0x500
> Dec  3 02:30:26 kernel: ? rcu_gp_kthread+0x13f/0x1d0
> Dec  3 02:30:26 kernel: ? kthread+0xcc/0x100
> Dec  3 02:30:26 kernel: ? __pfx_kthread+0x10/0x10
> Dec  3 02:30:26 kernel: ? ret_from_fork+0x2d/0x50
> Dec  3 02:30:26 kernel: ? __pfx_kthread+0x10/0x10
> Dec  3 02:30:26 kernel: ? ret_from_fork_asm+0x1a/0x30
> Dec  3 02:30:26 kernel: </TASK>
> Dec  3 02:30:26 kernel: ? kthread+0xcc/0x100
> Dec  3 02:30:26 kernel: ? __pfx_kthread+0x10/0x10
> Dec  3 02:30:26 kernel: ? ret_from_fork+0x2d/0x50
> Dec  3 02:30:26 kernel: ? __pfx_kthread+0x10/0x10
> Dec  3 02:30:26 kernel: ? ret_from_fork_asm+0x1a/0x30
> Dec  3 02:30:26 kernel: </TASK>

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