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Message-ID: <tencent_A3FB41E607B2126D163C5D4C87DC196E0707@qq.com>
Date: Sun, 16 Mar 2025 07:01:47 -0400
From: "ffhgfv" <xnxc22xnxc22@...com>
To: "davem" <davem@...emloft.net>, "edumazet" <edumazet@...gle.com>, "kuba" <kuba@...nel.org>, "pabeni" <pabeni@...hat.com>, "horms" <horms@...nel.org>, "kuniyu" <kuniyu@...zon.com>, "bigeasy" <bigeasy@...utronix.de>, "jdamato" <jdamato@...tly.com>, "aleksander.lobakin" <aleksander.lobakin@...el.com>
Cc: "netdev" <netdev@...r.kernel.org>, "linux-kernel" <linux-kernel@...r.kernel.org>
Subject: Linux6.14-rc5: INFO: task hung in register_netdevice_notifier_net
Hello, I found a bug titled " INFO: task hung in register_netdevice_notifier_net " with modified syzkaller in the Linux6.14-rc5.
If you fix this issue, please add the following tag to the commit: Reported-by: Jianzhou Zhao <xnxc22xnxc22@...com>, xingwei lee <xrivendell7@...il.com>, Zhizhuo Tang <strforexctzzchange@...mail.com>
I use the same kernel as syzbot instance upstream: 7eb172143d5508b4da468ed59ee857c6e5e01da6
kernel config: https://syzkaller.appspot.com/text?tag=KernelConfig&x=da4b04ae798b7ef6
compiler: gcc version 11.4.0
------------[ cut here ]-----------------------------------------
TITLE: INFO: task hung in register_netdevice_notifier_net
==================================================================
INFO: task kworker/u8:2:14 blocked for more than 143 seconds.
Not tainted 6.14.0-rc5-dirty #11
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u8:2 state:D stack:21448 pid:14 tgid:14 ppid:2 task_flags:0x4208060 flags:0x00004000
Workqueue: netns cleanup_net
Call Trace:
<task>
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0x1074/0x4d30 kernel/sched/core.c:6765
__schedule_loop kernel/sched/core.c:6842 [inline]
schedule+0xd4/0x210 kernel/sched/core.c:6857
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6914
__mutex_lock_common kernel/locking/mutex.c:662 [inline]
__mutex_lock+0x1042/0x2020 kernel/locking/mutex.c:730
rtnl_net_lock include/linux/rtnetlink.h:129 [inline]
register_netdevice_notifier_net+0x17/0x40 net/core/dev.c:2059
nsim_dev_hwstats_init+0xd4/0x520 drivers/net/netdevsim/hwstats.c:417
nsim_dev_reload_create drivers/net/netdevsim/dev.c:1497 [inline]
nsim_dev_reload_up+0x4ab/0x700 drivers/net/netdevsim/dev.c:988
devlink_reload+0x30d/0x7d0 net/devlink/dev.c:474
devlink_pernet_pre_exit+0x194/0x2a0 net/devlink/core.c:509
ops_pre_exit_list net/core/net_namespace.c:162 [inline]
cleanup_net+0x4a9/0xb80 net/core/net_namespace.c:632
process_one_work kernel/workqueue.c:3246 [inline]
process_scheduled_works+0x61a/0x1af0 kernel/workqueue.c:3330
worker_thread+0x59f/0xcf0 kernel/workqueue.c:3411
kthread+0x427/0x880 kernel/kthread.c:464
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
</task>
INFO: task systemd-udevd:13869 blocked for more than 144 seconds.
Not tainted 6.14.0-rc5-dirty #11
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:systemd-udevd state:D stack:22464 pid:13869 tgid:13869 ppid:5216 task_flags:0x400140 flags:0x00000000
Call Trace:
<task>
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0x1074/0x4d30 kernel/sched/core.c:6765
__schedule_loop kernel/sched/core.c:6842 [inline]
schedule+0xd4/0x210 kernel/sched/core.c:6857
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6914
__mutex_lock_common kernel/locking/mutex.c:662 [inline]
__mutex_lock+0x1042/0x2020 kernel/locking/mutex.c:730
rtnl_lock net/core/rtnetlink.c:79 [inline]
rtnetlink_rcv_msg+0x376/0xfc0 net/core/rtnetlink.c:6918
netlink_rcv_skb+0x165/0x450 net/netlink/af_netlink.c:2533
netlink_unicast_kernel net/netlink/af_netlink.c:1312 [inline]
netlink_unicast+0x544/0x760 net/netlink/af_netlink.c:1338
netlink_sendmsg+0x89a/0xd70 net/netlink/af_netlink.c:1882
sock_sendmsg_nosec net/socket.c:718 [inline]
__sock_sendmsg+0x221/0x2a0 net/socket.c:733
__sys_sendto+0x29a/0x390 net/socket.c:2187
__do_sys_sendto net/socket.c:2194 [inline]
__se_sys_sendto net/socket.c:2190 [inline]
__x64_sys_sendto+0xe1/0x1c0 net/socket.c:2190
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcf/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1519a82506
RSP: 002b:00007ffec6fc0218 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000562f6adf7d80 RCX: 00007f1519a82506
RDX: 0000000000000030 RSI: 0000562f6adb02e0 RDI: 0000000000000010
RBP: 0000562f6ada3320 R08: 00007ffec6fc02a0 R09: 0000000000000010
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000362d
R13: 0000562f6ada3320 R14: 0000000000000000 R15: 0000000000000000
</task>
INFO: task syz-executor:17372 blocked for more than 144 seconds.
Not tainted 6.14.0-rc5-dirty #11
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:22328 pid:17372 tgid:17372 ppid:1 task_flags:0x400140 flags:0x00000004
Call Trace:
<task>
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0x1074/0x4d30 kernel/sched/core.c:6765
__schedule_loop kernel/sched/core.c:6842 [inline]
schedule+0xd4/0x210 kernel/sched/core.c:6857
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6914
__mutex_lock_common kernel/locking/mutex.c:662 [inline]
__mutex_lock+0x1042/0x2020 kernel/locking/mutex.c:730
rtnl_lock net/core/rtnetlink.c:79 [inline]
rtnl_nets_lock net/core/rtnetlink.c:335 [inline]
rtnl_newlink+0x775/0x1ca0 net/core/rtnetlink.c:4021
rtnetlink_rcv_msg+0x9c1/0xfc0 net/core/rtnetlink.c:6912
netlink_rcv_skb+0x165/0x450 net/netlink/af_netlink.c:2533
netlink_unicast_kernel net/netlink/af_netlink.c:1312 [inline]
netlink_unicast+0x544/0x760 net/netlink/af_netlink.c:1338
netlink_sendmsg+0x89a/0xd70 net/netlink/af_netlink.c:1882
sock_sendmsg_nosec net/socket.c:718 [inline]
__sock_sendmsg+0x221/0x2a0 net/socket.c:733
__sys_sendto+0x29a/0x390 net/socket.c:2187
__do_sys_sendto net/socket.c:2194 [inline]
__se_sys_sendto net/socket.c:2190 [inline]
__x64_sys_sendto+0xe1/0x1c0 net/socket.c:2190
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcf/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1462babbb6
RSP: 002b:00007ffea9d96690 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f14638f4620 RCX: 00007f1462babbb6
RDX: 000000000000003c RSI: 00007f14638f4670 RDI: 0000000000000003
RBP: 0000000000000001 R08: 00007ffea9d966ec R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 00007f14638f4670 R14: 0000000000000003 R15: 0000000000000000
</task>
INFO: task syz-executor:17524 blocked for more than 145 seconds.
Not tainted 6.14.0-rc5-dirty #11
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:21912 pid:17524 tgid:17524 ppid:17452 task_flags:0x400140 flags:0x00000000
Call Trace:
<task>
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0x1074/0x4d30 kernel/sched/core.c:6765
__schedule_loop kernel/sched/core.c:6842 [inline]
schedule+0xd4/0x210 kernel/sched/core.c:6857
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6914
__mutex_lock_common kernel/locking/mutex.c:662 [inline]
__mutex_lock+0x1042/0x2020 kernel/locking/mutex.c:730
rtnl_net_lock include/linux/rtnetlink.h:129 [inline]
inet6_rtm_newaddr+0x490/0x1970 net/ipv6/addrconf.c:5023
rtnetlink_rcv_msg+0x9c1/0xfc0 net/core/rtnetlink.c:6912
netlink_rcv_skb+0x165/0x450 net/netlink/af_netlink.c:2533
netlink_unicast_kernel net/netlink/af_netlink.c:1312 [inline]
netlink_unicast+0x544/0x760 net/netlink/af_netlink.c:1338
netlink_sendmsg+0x89a/0xd70 net/netlink/af_netlink.c:1882
sock_sendmsg_nosec net/socket.c:718 [inline]
__sock_sendmsg+0x221/0x2a0 net/socket.c:733
__sys_sendto+0x29a/0x390 net/socket.c:2187
__do_sys_sendto net/socket.c:2194 [inline]
__se_sys_sendto net/socket.c:2190 [inline]
__x64_sys_sendto+0xe1/0x1c0 net/socket.c:2190
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcf/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa36e5abbb6
RSP: 002b:00007ffc93108e10 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007fa36f2f4620 RCX: 00007fa36e5abbb6
RDX: 0000000000000040 RSI: 00007fa36f2f4670 RDI: 0000000000000003
RBP: 0000000000000001 R08: 00007ffc93108e6c R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 00007fa36f2f4670 R14: 0000000000000003 R15: 0000000000000000
</task>
INFO: task ifquery:17618 blocked for more than 145 seconds.
Not tainted 6.14.0-rc5-dirty #11
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:ifquery state:D stack:22632 pid:17618 tgid:17618 ppid:17610 task_flags:0x400000 flags:0x00000000
Call Trace:
<task>
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0x1074/0x4d30 kernel/sched/core.c:6765
__schedule_loop kernel/sched/core.c:6842 [inline]
schedule+0xd4/0x210 kernel/sched/core.c:6857
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6914
__mutex_lock_common kernel/locking/mutex.c:662 [inline]
__mutex_lock+0x1042/0x2020 kernel/locking/mutex.c:730
rtnl_lock net/core/rtnetlink.c:79 [inline]
rtnl_dumpit+0x198/0x200 net/core/rtnetlink.c:6780
netlink_dump+0x5c3/0xc80 net/netlink/af_netlink.c:2308
netlink_recvmsg+0xaeb/0xf00 net/netlink/af_netlink.c:1964
sock_recvmsg_nosec net/socket.c:1023 [inline]
sock_recvmsg+0x218/0x290 net/socket.c:1045
____sys_recvmsg+0x210/0x6e0 net/socket.c:2793
___sys_recvmsg+0xff/0x190 net/socket.c:2835
__sys_recvmsg+0x14e/0x200 net/socket.c:2868
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcf/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0d89928da3
RSP: 002b:00007ffee7960088 EFLAGS: 00000246 ORIG_RAX: 000000000000002f
RAX: ffffffffffffffda RBX: 00007ffee79611e0 RCX: 00007f0d89928da3
RDX: 0000000000000000 RSI: 00007ffee79610e0 RDI: 0000000000000003
RBP: 00007ffee7961170 R08: 0000000000000000 R09: 00007f0d899fabe0
R10: 000000000000006e R11: 0000000000000246 R12: 00007ffee79610e0
R13: 00007ffee79610d0 R14: 00007ffee79610c4 R15: 0000000000000f1c
</task>
INFO: task syz-executor:17625 blocked for more than 147 seconds.
Not tainted 6.14.0-rc5-dirty #11
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:21216 pid:17625 tgid:17625 ppid:17536 task_flags:0x400140 flags:0x00004002
Call Trace:
<task>
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0x1074/0x4d30 kernel/sched/core.c:6765
__schedule_loop kernel/sched/core.c:6842 [inline]
schedule+0xd4/0x210 kernel/sched/core.c:6857
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6914
__mutex_lock_common kernel/locking/mutex.c:662 [inline]
__mutex_lock+0x1042/0x2020 kernel/locking/mutex.c:730
ip_tunnel_init_net+0x30c/0xb10 net/ipv4/ip_tunnel.c:1159
ops_init+0x1df/0x640 net/core/net_namespace.c:138
setup_net+0x21f/0x880 net/core/net_namespace.c:362
copy_net_ns+0x2e3/0x640 net/core/net_namespace.c:516
create_new_namespaces+0x3f6/0xaf0 kernel/nsproxy.c:110
unshare_nsproxy_namespaces+0xc0/0x200 kernel/nsproxy.c:228
ksys_unshare+0x410/0x940 kernel/fork.c:3342
__do_sys_unshare kernel/fork.c:3413 [inline]
__se_sys_unshare kernel/fork.c:3411 [inline]
__x64_sys_unshare+0x31/0x40 kernel/fork.c:3411
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcf/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f78135ab4fb
RSP: 002b:00007ffc57d29258 EFLAGS: 00000206 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 000000000000000c RCX: 00007f78135ab4fb
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040000000
RBP: 00007f78137c5f40 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 000000000000000c
R13: 0000000000000003 R14: 00007f781364e881 R15: 0000000000000002
</task>
INFO: task ifquery:17649 blocked for more than 148 seconds.
Not tainted 6.14.0-rc5-dirty #11
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:ifquery state:D stack:22896 pid:17649 tgid:17649 ppid:17648 task_flags:0x400000 flags:0x00000000
Call Trace:
<task>
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0x1074/0x4d30 kernel/sched/core.c:6765
__schedule_loop kernel/sched/core.c:6842 [inline]
schedule+0xd4/0x210 kernel/sched/core.c:6857
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6914
__mutex_lock_common kernel/locking/mutex.c:662 [inline]
__mutex_lock+0x1042/0x2020 kernel/locking/mutex.c:730
rtnl_lock net/core/rtnetlink.c:79 [inline]
rtnl_dumpit+0x198/0x200 net/core/rtnetlink.c:6780
netlink_dump+0x5c3/0xc80 net/netlink/af_netlink.c:2308
netlink_recvmsg+0xaeb/0xf00 net/netlink/af_netlink.c:1964
sock_recvmsg_nosec net/socket.c:1023 [inline]
sock_recvmsg+0x218/0x290 net/socket.c:1045
____sys_recvmsg+0x210/0x6e0 net/socket.c:2793
___sys_recvmsg+0xff/0x190 net/socket.c:2835
__sys_recvmsg+0x14e/0x200 net/socket.c:2868
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcf/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3e36a1fda3
RSP: 002b:00007ffd0f6ff968 EFLAGS: 00000246 ORIG_RAX: 000000000000002f
RAX: ffffffffffffffda RBX: 00007ffd0f700ac0 RCX: 00007f3e36a1fda3
RDX: 0000000000000000 RSI: 00007ffd0f7009c0 RDI: 0000000000000003
RBP: 00007ffd0f700a50 R08: 0000000000000000 R09: 00007f3e36af1be0
R10: 000000000000006e R11: 0000000000000246 R12: 00007ffd0f7009c0
R13: 00007ffd0f7009b0 R14: 00007ffd0f7009a4 R15: 0000000000000f28
</task>
INFO: task ifquery:17698 blocked for more than 148 seconds.
Not tainted 6.14.0-rc5-dirty #11
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:ifquery state:D stack:23264 pid:17698 tgid:17698 ppid:17690 task_flags:0x400000 flags:0x00000000
Call Trace:
<task>
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0x1074/0x4d30 kernel/sched/core.c:6765
__schedule_loop kernel/sched/core.c:6842 [inline]
schedule+0xd4/0x210 kernel/sched/core.c:6857
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6914
__mutex_lock_common kernel/locking/mutex.c:662 [inline]
__mutex_lock+0x1042/0x2020 kernel/locking/mutex.c:730
rtnl_lock net/core/rtnetlink.c:79 [inline]
rtnl_dumpit+0x198/0x200 net/core/rtnetlink.c:6780
netlink_dump+0x5c3/0xc80 net/netlink/af_netlink.c:2308
netlink_recvmsg+0xaeb/0xf00 net/netlink/af_netlink.c:1964
sock_recvmsg_nosec net/socket.c:1023 [inline]
sock_recvmsg+0x218/0x290 net/socket.c:1045
____sys_recvmsg+0x210/0x6e0 net/socket.c:2793
___sys_recvmsg+0xff/0x190 net/socket.c:2835
__sys_recvmsg+0x14e/0x200 net/socket.c:2868
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcf/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0f7fc0ada3
RSP: 002b:00007ffd4214d978 EFLAGS: 00000246 ORIG_RAX: 000000000000002f
RAX: ffffffffffffffda RBX: 00007ffd4214ead0 RCX: 00007f0f7fc0ada3
RDX: 0000000000000000 RSI: 00007ffd4214e9d0 RDI: 0000000000000003
RBP: 00007ffd4214ea60 R08: 0000000000000000 R09: 00007f0f7fcdcbe0
R10: 000000000000006e R11: 0000000000000246 R12: 00007ffd4214e9d0
R13: 00007ffd4214e9c0 R14: 00007ffd4214e9b4 R15: 0000000000000f28
</task>
Showing all locks held in the system:
2 locks held by systemd/1:
#0: ffff88804b7784a8 (&vma->vm_lock->lock){++++}-{4:4}, at: vma_start_read include/linux/mm.h:717 [inline]
#0: ffff88804b7784a8 (&vma->vm_lock->lock){++++}-{4:4}, at: lock_vma_under_rcu+0x141/0x990 mm/memory.c:6378
#1: ffffffff8e351e20 (fs_reclaim){+.+.}-{0:0}, at: __perform_reclaim mm/page_alloc.c:3926 [inline]
#1: ffffffff8e351e20 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_direct_reclaim mm/page_alloc.c:3951 [inline]
#1: ffffffff8e351e20 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_slowpath.constprop.0+0x70c/0x2290 mm/page_alloc.c:4382
3 locks held by kworker/u8:1/12:
6 locks held by kworker/u8:2/14:
#0: ffff88801beeb948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3217 [inline]
#0: ffff88801beeb948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x1161/0x1af0 kernel/workqueue.c:3330
#1: ffffc9000040fd28 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3218 [inline]
#1: ffffc9000040fd28 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x526/0x1af0 kernel/workqueue.c:3330
#2: ffffffff8fecfdd0 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xca/0xb80 net/core/net_namespace.c:606
#3: ffff88806b5700e8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1030 [inline]
#3: ffff88806b5700e8 (&dev->mutex){....}-{4:4}, at: devl_dev_lock net/devlink/devl_internal.h:108 [inline]
#3: ffff88806b5700e8 (&dev->mutex){....}-{4:4}, at: devlink_pernet_pre_exit+0x11f/0x2a0 net/devlink/core.c:506
#4: ffff88805c1cc250 (&devlink->lock_key){+.+.}-{4:4}, at: devl_lock net/devlink/core.c:276 [inline]
#4: ffff88805c1cc250 (&devlink->lock_key){+.+.}-{4:4}, at: devl_dev_lock net/devlink/devl_internal.h:109 [inline]
#4: ffff88805c1cc250 (&devlink->lock_key){+.+.}-{4:4}, at: devlink_pernet_pre_exit+0x129/0x2a0 net/devlink/core.c:506
#5: ffffffff8fee5d68 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:129 [inline]
#5: ffffffff8fee5d68 (rtnl_mutex){+.+.}-{4:4}, at: register_netdevice_notifier_net+0x17/0x40 net/core/dev.c:2059
1 lock held by khungtaskd/34:
#0: ffffffff8e1bbae0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8e1bbae0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8e1bbae0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6746
1 lock held by kswapd0/98:
1 lock held by kswapd1/99:
#0: ffffffff8e351e20 (fs_reclaim){+.+.}-{0:0}, at: balance_pgdat+0xbe2/0x1740 mm/vmscan.c:7012
2 locks held by kworker/0:2/793:
2 locks held by systemd-journal/5204:
#0: ffff8880259cd808 (&vma->vm_lock->lock){++++}-{4:4}, at: vma_start_read include/linux/mm.h:717 [inline]
#0: ffff8880259cd808 (&vma->vm_lock->lock){++++}-{4:4}, at: lock_vma_under_rcu+0x141/0x990 mm/memory.c:6378
#1: ffffffff8e351e20 (fs_reclaim){+.+.}-{0:0}, at: __perform_reclaim mm/page_alloc.c:3926 [inline]
#1: ffffffff8e351e20 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_direct_reclaim mm/page_alloc.c:3951 [inline]
#1: ffffffff8e351e20 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_slowpath.constprop.0+0x70c/0x2290 mm/page_alloc.c:4382
2 locks held by systemd-udevd/5216:
#0: ffff88801faa1808 (&vma->vm_lock->lock){++++}-{4:4}, at: vma_start_read include/linux/mm.h:717 [inline]
#0: ffff88801faa1808 (&vma->vm_lock->lock){++++}-{4:4}, at: lock_vma_under_rcu+0x141/0x990 mm/memory.c:6378
#1: ffffffff8e351e20 (fs_reclaim){+.+.}-{0:0}, at: __perform_reclaim mm/page_alloc.c:3926 [inline]
#1: ffffffff8e351e20 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_direct_reclaim mm/page_alloc.c:3951 [inline]
#1: ffffffff8e351e20 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_slowpath.constprop.0+0x70c/0x2290 mm/page_alloc.c:4382
2 locks held by cron/8663:
#0: ffff888012b0e580 (&vma->vm_lock->lock){++++}-{4:4}, at: vma_start_read include/linux/mm.h:717 [inline]
#0: ffff888012b0e580 (&vma->vm_lock->lock){++++}-{4:4}, at: lock_vma_under_rcu+0x141/0x990 mm/memory.c:6378
#1: ffffffff8e351e20 (fs_reclaim){+.+.}-{0:0}, at: __perform_reclaim mm/page_alloc.c:3926 [inline]
#1: ffffffff8e351e20 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_direct_reclaim mm/page_alloc.c:3951 [inline]
#1: ffffffff8e351e20 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_slowpath.constprop.0+0x70c/0x2290 mm/page_alloc.c:4382
1 lock held by in:imklog/8734:
1 lock held by sshd/9425:
#0: ffff888045ea0598 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:932 [inline]
#0: ffff888045ea0598 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_fault+0x601/0x2650 mm/filemap.c:3454
2 locks held by syz-executor/9431:
#0: ffff88801eedcdf0 (&vma->vm_lock->lock){++++}-{4:4}, at: vma_start_read include/linux/mm.h:717 [inline]
#0: ffff88801eedcdf0 (&vma->vm_lock->lock){++++}-{4:4}, at: lock_vma_under_rcu+0x141/0x990 mm/memory.c:6378
#1: ffffffff8e351e20 (fs_reclaim){+.+.}-{0:0}, at: __perform_reclaim mm/page_alloc.c:3926 [inline]
#1: ffffffff8e351e20 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_direct_reclaim mm/page_alloc.c:3951 [inline]
#1: ffffffff8e351e20 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_slowpath.constprop.0+0x70c/0x2290 mm/page_alloc.c:4382
3 locks held by kworker/u8:3/9748:
#0: ffff888026d3b948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3217 [inline]
#0: ffff888026d3b948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x1161/0x1af0 kernel/workqueue.c:3330
#1: ffffc90002537d28 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3218 [inline]
#1: ffffc90002537d28 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x526/0x1af0 kernel/workqueue.c:3330
#2: ffffffff8fee5d68 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:129 [inline]
#2: ffffffff8fee5d68 (rtnl_mutex){+.+.}-{4:4}, at: addrconf_verify_work+0x12/0x30 net/ipv6/addrconf.c:4730
2 locks held by kworker/u9:8/10600:
#0: ffff88801b081148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3217 [inline]
#0: ffff88801b081148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x1161/0x1af0 kernel/workqueue.c:3330
#1: ffffc9000768fd28 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3218 [inline]
#1: ffffc9000768fd28 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_scheduled_works+0x526/0x1af0 kernel/workqueue.c:3330
3 locks held by kworker/1:6/12126:
#0: ffff88801b078d48 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3217 [inline]
#0: ffff88801b078d48 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x1161/0x1af0 kernel/workqueue.c:3330
#1: ffffc90002ce7d28 (deferred_process_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3218 [inline]
#1: ffffc90002ce7d28 (deferred_process_work){+.+.}-{0:0}, at: process_scheduled_works+0x526/0x1af0 kernel/workqueue.c:3330
#2: ffffffff8fee5d68 (rtnl_mutex){+.+.}-{4:4}, at: switchdev_deferred_process_work+0xe/0x20 net/switchdev/switchdev.c:104
2 locks held by systemd-udevd/13836:
#0: ffff888044609ec8 (&vma->vm_lock->lock){++++}-{4:4}, at: vma_start_read include/linux/mm.h:717 [inline]
#0: ffff888044609ec8 (&vma->vm_lock->lock){++++}-{4:4}, at: lock_vma_under_rcu+0x141/0x990 mm/memory.c:6378
#1: ffffffff8e351e20 (fs_reclaim){+.+.}-{0:0}, at: __perform_reclaim mm/page_alloc.c:3926 [inline]
#1: ffffffff8e351e20 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_direct_reclaim mm/page_alloc.c:3951 [inline]
#1: ffffffff8e351e20 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_slowpath.constprop.0+0x70c/0x2290 mm/page_alloc.c:4382
2 locks held by systemd-udevd/13851:
#0: ffff888012b3b580 (&vma->vm_lock->lock){++++}-{4:4}, at: vma_start_read include/linux/mm.h:717 [inline]
#0: ffff888012b3b580 (&vma->vm_lock->lock){++++}-{4:4}, at: lock_vma_under_rcu+0x141/0x990 mm/memory.c:6378
#1: ffffffff8e351e20 (fs_reclaim){+.+.}-{0:0}, at: __perform_reclaim mm/page_alloc.c:3926 [inline]
#1: ffffffff8e351e20 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_direct_reclaim mm/page_alloc.c:3951 [inline]
#1: ffffffff8e351e20 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_slowpath.constprop.0+0x70c/0x2290 mm/page_alloc.c:4382
1 lock held by systemd-udevd/13869:
#0: ffffffff8fee5d68 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fee5d68 (rtnl_mutex){+.+.}-{4:4}, at: rtnetlink_rcv_msg+0x376/0xfc0 net/core/rtnetlink.c:6918
1 lock held by systemd-udevd/15794:
#0: ffffffff8fee5d68 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fee5d68 (rtnl_mutex){+.+.}-{4:4}, at: rtnetlink_rcv_msg+0x376/0xfc0 net/core/rtnetlink.c:6918
4 locks held by systemd-udevd/15854:
#0: ffffffff8e2d5990 (dup_mmap_sem){.+.+}-{0:0}, at: dup_mm kernel/fork.c:1699 [inline]
#0: ffffffff8e2d5990 (dup_mmap_sem){.+.+}-{0:0}, at: copy_mm kernel/fork.c:1752 [inline]
#0: ffffffff8e2d5990 (dup_mmap_sem){.+.+}-{0:0}, at: copy_process+0x6dcb/0x77c0 kernel/fork.c:2403
#1: ffff88804b6ee5e0 (&mm->mmap_lock){++++}-{4:4}, at: mmap_write_lock_killable include/linux/mmap_lock.h:152 [inline]
#1: ffff88804b6ee5e0 (&mm->mmap_lock){++++}-{4:4}, at: dup_mmap+0xee/0x1f40 kernel/fork.c:642
#2: ffff888025d033e0 (&mm->mmap_lock/1){+.+.}-{4:4}, at: mmap_write_lock_nested include/linux/mmap_lock.h:142 [inline]
#2: ffff888025d033e0 (&mm->mmap_lock/1){+.+.}-{4:4}, at: dup_mmap+0x192/0x1f40 kernel/fork.c:649
#3: ffffffff8e351e20 (fs_reclaim){+.+.}-{0:0}, at: __perform_reclaim mm/page_alloc.c:3926 [inline]
#3: ffffffff8e351e20 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_direct_reclaim mm/page_alloc.c:3951 [inline]
#3: ffffffff8e351e20 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_slowpath.constprop.0+0x70c/0x2290 mm/page_alloc.c:4382
1 lock held by syz-executor/17362:
#0: ffffffff8fee5d68 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fee5d68 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:335 [inline]
#0: ffffffff8fee5d68 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x775/0x1ca0 net/core/rtnetlink.c:4021
2 locks held by syz-executor/17372:
#0: ffffffff90635f20 (&ops->srcu){.+.+}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:164 [inline]
#0: ffffffff90635f20 (&ops->srcu){.+.+}-{0:0}, at: srcu_read_lock include/linux/srcu.h:256 [inline]
#0: ffffffff90635f20 (&ops->srcu){.+.+}-{0:0}, at: rtnl_link_ops_get+0x111/0x2c0 net/core/rtnetlink.c:568
#1: ffffffff8fee5d68 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#1: ffffffff8fee5d68 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:335 [inline]
#1: ffffffff8fee5d68 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x775/0x1ca0 net/core/rtnetlink.c:4021
3 locks held by syz-executor/17384:
#0: ffffffff9061aa20 (&ops->srcu){.+.+}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:164 [inline]
#0: ffffffff9061aa20 (&ops->srcu){.+.+}-{0:0}, at: srcu_read_lock include/linux/srcu.h:256 [inline]
#0: ffffffff9061aa20 (&ops->srcu){.+.+}-{0:0}, at: rtnl_link_ops_get+0x111/0x2c0 net/core/rtnetlink.c:568
#1: ffffffff8fee5d68 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#1: ffffffff8fee5d68 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:335 [inline]
#1: ffffffff8fee5d68 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x775/0x1ca0 net/core/rtnetlink.c:4021
#2: ffffffff8e351e20 (fs_reclaim){+.+.}-{0:0}, at: __perform_reclaim mm/page_alloc.c:3926 [inline]
#2: ffffffff8e351e20 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_direct_reclaim mm/page_alloc.c:3951 [inline]
#2: ffffffff8e351e20 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_slowpath.constprop.0+0x70c/0x2290 mm/page_alloc.c:4382
1 lock held by syz-executor/17447:
#0: ffffffff8fee5d68 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fee5d68 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:335 [inline]
#0: ffffffff8fee5d68 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x775/0x1ca0 net/core/rtnetlink.c:4021
1 lock held by syz-executor/17524:
#0: ffffffff8fee5d68 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:129 [inline]
#0: ffffffff8fee5d68 (rtnl_mutex){+.+.}-{4:4}, at: inet6_rtm_newaddr+0x490/0x1970 net/ipv6/addrconf.c:5023
2 locks held by syz-executor/17605:
#0: ffffffff8fecfdd0 (pernet_ops_rwsem){++++}-{4:4}, at: copy_net_ns+0x2c3/0x640 net/core/net_namespace.c:512
#1: ffffffff8fee5d68 (rtnl_mutex){+.+.}-{4:4}, at: wg_netns_pre_exit+0x1b/0x220 drivers/net/wireguard/device.c:415
2 locks held by ifquery/17618:
#0: ffff88800064a6c8 (nlk_cb_mutex-ROUTE){+.+.}-{4:4}, at: netlink_dump+0x6f3/0xc80 net/netlink/af_netlink.c:2254
#1: ffffffff8fee5d68 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#1: ffffffff8fee5d68 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dumpit+0x198/0x200 net/core/rtnetlink.c:6780
2 locks held by syz-executor/17625:
#0: ffffffff8fecfdd0 (pernet_ops_rwsem){++++}-{4:4}, at: copy_net_ns+0x2c3/0x640 net/core/net_namespace.c:512
#1: ffffffff8fee5d68 (rtnl_mutex){+.+.}-{4:4}, at: ip_tunnel_init_net+0x30c/0xb10 net/ipv4/ip_tunnel.c:1159
2 locks held by ifquery/17649:
#0: ffff88805d5fc6c8 (nlk_cb_mutex-ROUTE){+.+.}-{4:4}, at: netlink_dump+0x6f3/0xc80 net/netlink/af_netlink.c:2254
#1: ffffffff8fee5d68 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#1: ffffffff8fee5d68 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dumpit+0x198/0x200 net/core/rtnetlink.c:6780
1 lock held by systemd-rfkill/17664:
#0: ffff888045e80f88 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:932 [inline]
#0: ffff888045e80f88 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_fault+0xed2/0x2650 mm/filemap.c:3435
2 locks held by ifquery/17698:
#0: ffff8880417046c8 (nlk_cb_mutex-ROUTE){+.+.}-{4:4}, at: netlink_dump+0x6f3/0xc80 net/netlink/af_netlink.c:2254
#1: ffffffff8fee5d68 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#1: ffffffff8fee5d68 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dumpit+0x198/0x200 net/core/rtnetlink.c:6780
2 locks held by modprobe/17761:
#0: ffff888063a7d9b8 (&vma->vm_lock->lock){++++}-{4:4}, at: vma_start_read include/linux/mm.h:717 [inline]
#0: ffff888063a7d9b8 (&vma->vm_lock->lock){++++}-{4:4}, at: lock_vma_under_rcu+0x141/0x990 mm/memory.c:6378
#1: ffffffff8e351e20 (fs_reclaim){+.+.}-{0:0}, at: __perform_reclaim mm/page_alloc.c:3926 [inline]
#1: ffffffff8e351e20 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_direct_reclaim mm/page_alloc.c:3951 [inline]
#1: ffffffff8e351e20 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_slowpath.constprop.0+0x70c/0x2290 mm/page_alloc.c:4382
2 locks held by ifquery/17779:
#0: ffff888044a55658 (&vma->vm_lock->lock){++++}-{4:4}, at: vma_start_read include/linux/mm.h:717 [inline]
#0: ffff888044a55658 (&vma->vm_lock->lock){++++}-{4:4}, at: lock_vma_under_rcu+0x141/0x990 mm/memory.c:6378
#1: ffffffff8e351e20 (fs_reclaim){+.+.}-{0:0}, at: __perform_reclaim mm/page_alloc.c:3926 [inline]
#1: ffffffff8e351e20 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_direct_reclaim mm/page_alloc.c:3951 [inline]
#1: ffffffff8e351e20 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_slowpath.constprop.0+0x70c/0x2290 mm/page_alloc.c:4382
1 lock held by syz-executor/18024:
3 locks held by systemd-sysctl/18025:
2 locks held by syz-executor/18026:
#0: ffff88805d8ec138 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:932 [inline]
#0: ffff88805d8ec138 (mapping.invalidate_lock){++++}-{4:4}, at: filemap_fault+0x601/0x2650 mm/filemap.c:3454
#1: ffffffff8e351e20 (fs_reclaim){+.+.}-{0:0}, at: __perform_reclaim mm/page_alloc.c:3926 [inline]
#1: ffffffff8e351e20 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_direct_reclaim mm/page_alloc.c:3951 [inline]
#1: ffffffff8e351e20 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_slowpath.constprop.0+0x70c/0x2290 mm/page_alloc.c:4382
3 locks held by syz-executor/18027:
=============================================
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 34 Comm: khungtaskd Not tainted 6.14.0-rc5-dirty #11
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014
Call Trace:
<task>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1b0 lib/dump_stack.c:120
nmi_cpu_backtrace+0x2a0/0x350 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x29b/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:236 [inline]
watchdog+0xf4c/0x1210 kernel/hung_task.c:399
kthread+0x427/0x880 kernel/kthread.c:464
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
</task>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 39 Comm: kcompactd1 Not tainted 6.14.0-rc5-dirty #11
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:26 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:87 [inline]
RIP: 0010:check_preemption_disabled+0x4f/0x170 lib/smp_processor_id.c:19
Code: ff ff 7f 31 ff 89 de 0f 1f 44 00 00 85 db 74 15 0f 1f 44 00 00 44 89 e0 5b 5d 41 5c 41 5d 41 5e c3 cc cc cc cc 0f 1f 44 00 00 <9c> 5b 81 e3 00 02 00 00 31 ff 48 89 de 0f 1f 44 00 00 48 85 db 74
RSP: 0000:ffffc900005bf608 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffffff8bd34580 R08: fffff520000b7f00 R09: ffffed100fffbdd1
R10: ffffed100fffbdd0 R11: ffff88807ffdee87 R12: 0000000000000001
R13: ffffffff8b6cf400 R14: 00000000ffffffff R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff88807ee00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f51374e6b40 CR3: 000000005c200000 CR4: 0000000000752ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
PKRU: 55555554
Call Trace:
<nmi>
</nmi>
<task>
lockdep_recursion_inc kernel/locking/lockdep.c:464 [inline]
lock_is_held_type+0x66/0x150 kernel/locking/lockdep.c:5922
lock_is_held include/linux/lockdep.h:249 [inline]
__might_resched+0x46a/0x580 kernel/sched/core.c:8729
reclaim_throttle+0x7f0/0x970 mm/vmscan.c:540
isolate_migratepages_block+0x2c8/0x5300 mm/compaction.c:903
isolate_migratepages mm/compaction.c:2167 [inline]
compact_zone+0x1913/0x3ed0 mm/compaction.c:2633
compact_node+0x19c/0x2d0 mm/compaction.c:2932
kcompactd+0x328/0x940 mm/compaction.c:3226
kthread+0x427/0x880 kernel/kthread.c:464
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
</task>
==================================================================
I hope it helps.
Best regards
Jianzhou Zhao
xingwei lee
Zhizhuo Tang</strforexctzzchange@...mail.com></xrivendell7@...il.com></xnxc22xnxc22@...com>
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