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Message-ID: <7d350903c2aa8f318f8441eaffafe10b7796d17b.camel@redhat.com>
Date: Tue, 13 Oct 2020 13:11:05 -0400
From: Qian Cai <cai@...hat.com>
To: Miklos Szeredi <miklos@...redi.hu>, Vivek Goyal <vgoyal@...hat.com>
Cc: Alexander Viro <viro@...iv.linux.org.uk>,
Stefan Hajnoczi <stefanha@...hat.com>,
linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
virtio-fs@...hat.com
Subject: Unbreakable loop in fuse_fill_write_pages()
Running some fuzzing on virtiofs with an unprivileged user on today's linux-next
could trigger soft-lockups below.
# virtiofsd --socket-path=/tmp/vhostqemu -o source=$TESTDIR -o cache=always -o no_posix_lock
Basically, everything was blocking on inode_lock(inode) because one thread
(trinity-c33) was holding it but stuck in the loop in fuse_fill_write_pages()
and unable to exit for more than 10 minutes before I executed sysrq-t.
Afterwards, the systems was totally unresponsive:
kernel:NMI watchdog: Watchdog detected hard LOCKUP on cpu 8
To exit the loop, it needs,
iov_iter_advance(ii, tmp) to set "tmp" to non-zero for each iteration.
and
} while (iov_iter_count(ii) && count < fc->max_write &&
ap->num_pages < max_pages && offset == 0);
== the thread is stuck in the loop ==
[10813.290694] task:trinity-c33 state:D stack:25888 pid:254219 ppid: 87180
flags:0x00004004
[10813.292671] Call Trace:
[10813.293379] __schedule+0x71d/0x1b50
[10813.294182] ? __sched_text_start+0x8/0x8
[10813.295146] ? mark_held_locks+0xb0/0x110
[10813.296117] schedule+0xbf/0x270
[10813.296782] ? __lock_page_killable+0x276/0x830
[10813.297867] io_schedule+0x17/0x60
[10813.298772] __lock_page_killable+0x33b/0x830
[10813.299695] ? wait_on_page_bit+0x710/0x710
[10813.300609] ? __lock_page_or_retry+0x3c0/0x3c0
[10813.301894] ? up_read+0x1a3/0x730
[10813.302791] ? page_cache_free_page.isra.45+0x390/0x390
[10813.304077] filemap_fault+0x2bd/0x2040
[10813.305019] ? read_cache_page_gfp+0x10/0x10
[10813.306041] ? lock_downgrade+0x700/0x700
[10813.306958] ? replace_page_cache_page+0x1130/0x1130
[10813.308124] __do_fault+0xf5/0x530
[10813.308968] handle_mm_fault+0x1c0e/0x25b0
[10813.309955] ? copy_page_range+0xfe0/0xfe0
[10813.310895] do_user_addr_fault+0x383/0x820
[10813.312084] exc_page_fault+0x56/0xb0
[10813.312979] asm_exc_page_fault+0x1e/0x30
[10813.313978] RIP: 0010:iov_iter_fault_in_readable+0x271/0x350
fault_in_pages_readable at include/linux/pagemap.h:745
(inlined by) iov_iter_fault_in_readable at lib/iov_iter.c:438
[10813.315293] Code: 48 39 d7 0f 82 1a ff ff ff 0f 01 cb 0f ae e8 44 89 c0 8a 0a
0f 01 ca 88 4c 24 70 85 c0 74 da e9 f8 fe ff ff 0f 01 cb 0f ae e8 <8a> 11 0f 01
ca 88 54 24 30 85 c0 0f 85 04 ff ff ff 48 29 ee e9
45
[10813.319196] RSP: 0018:ffffc90017ccf830 EFLAGS: 00050246
[10813.320446] RAX: 0000000000000000 RBX: 1ffff92002f99f08 RCX: 00007fe284f1004c
[10813.322202] RDX: 0000000000000001 RSI: 0000000000001000 RDI: ffff8887a7664000
[10813.323729] RBP: 0000000000001000 R08: 0000000000000000 R09: 0000000000000000
[10813.325282] R10: ffffc90017ccfd48 R11: ffffed102789d5ff R12: ffff8887a7664020
[10813.326898] R13: ffffc90017ccfd40 R14: dffffc0000000000 R15: 0000000000e0df6a
[10813.328456] ? iov_iter_revert+0x8e0/0x8e0
[10813.329404] ? copyin+0x96/0xc0
[10813.330230] ? iov_iter_copy_from_user_atomic+0x1f0/0xa40
[10813.331742] fuse_perform_write+0x3eb/0xf20 [fuse]
fuse_fill_write_pages at fs/fuse/file.c:1150
(inlined by) fuse_perform_write at fs/fuse/file.c:1226
[10813.332880] ? fuse_file_fallocate+0x5f0/0x5f0 [fuse]
[10813.334090] fuse_file_write_iter+0x6b7/0x900 [fuse]
[10813.335191] do_iter_readv_writev+0x42b/0x6d0
[10813.336161] ? new_sync_write+0x610/0x610
[10813.337194] do_iter_write+0x11f/0x5b0
[10813.338177] ? __sb_start_write+0x229/0x2d0
[10813.339169] vfs_writev+0x16d/0x2d0
[10813.339973] ? vfs_iter_write+0xb0/0xb0
[10813.340950] ? __fdget_pos+0x9c/0xb0
[10813.342039] ? rcu_read_lock_sched_held+0x9c/0xd0
[10813.343120] ? rcu_read_lock_bh_held+0xb0/0xb0
[10813.344104] ? find_held_lock+0x33/0x1c0
[10813.345050] do_writev+0xfb/0x1e0
[10813.345920] ? vfs_writev+0x2d0/0x2d0
[10813.346802] ? lockdep_hardirqs_on_prepare+0x27c/0x3d0
[10813.348026] ? syscall_enter_from_user_mode+0x1c/0x50
[10813.349197] do_syscall_64+0x33/0x40
[10813.350026] entry_SYSCALL_64_after_hwframe+0x44/0xa9
== soft-lockups ==
[10579.953730][ T348] Tainted: G O 5.9.0-next-20201013+ #2
[10579.955016][ T348] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[10579.956467][ T348] task:trinity-c25 state:D stack:26704 pid:253906 ppid: 87180 flags:0x00004002
[10579.958028][ T348] Call Trace:
[10579.958609][ T348] __schedule+0x71d/0x1b50
[10579.959309][ T348] ? __sched_text_start+0x8/0x8
[10579.960144][ T348] schedule+0xbf/0x270
[10579.960774][ T348] rwsem_down_write_slowpath+0x8ea/0xf30
[10579.961828][ T348] ? rwsem_mark_wake+0x8d0/0x8d0
[10579.962675][ T348] ? lockdep_hardirqs_on_prepare+0x3d0/0x3d0
[10579.963721][ T348] ? rcu_read_lock_sched_held+0x9c/0xd0
[10579.964658][ T348] ? lock_acquire+0x1c8/0x820
[10579.965453][ T348] ? down_write+0x138/0x150
[10579.966237][ T348] ? down_write+0xb3/0x150
[10579.966994][ T348] down_write+0x138/0x150
[10579.967787][ T348] ? down_write_killable_nested+0x170/0x170
[10579.968844][ T348] fuse_flush+0x1a0/0x500 [fuse]
[10579.969732][ T348] ? fuse_file_lock+0x190/0x190 [fuse]
[10579.970741][ T348] filp_close+0x97/0x110
[10579.971560][ T348] put_files_struct+0x15a/0x250
[10579.972393][ T348] do_exit+0x8a9/0x23a0
[10579.973107][ T348] ? mm_update_next_owner+0x740/0x740
[10579.974048][ T348] ? up_read+0x1a3/0x730
[10579.974712][ T348] ? down_read_nested+0x420/0x420
[10579.975589][ T348] ? syscall_enter_from_user_mode+0x17/0x50
[10579.976686][ T348] ? rcu_read_lock_sched_held+0x9c/0xd0
[10579.977625][ T348] ? rcu_read_lock_sched_held+0x9c/0xd0
[10579.978522][ T348] do_group_exit+0xeb/0x2d0
[10579.979329][ T348] __x64_sys_exit_group+0x35/0x40
[10579.980173][ T348] do_syscall_64+0x33/0x40
[10579.980898][ T348] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[10579.981979][ T348] RIP: 0033:0x7fe287a39256
[10579.982726][ T348] Code: Unable to access opcode bytes at RIP 0x7fe287a3922c.
[10579.983989][ T348] RSP: 002b:00007ffc5fb89ee8 EFLAGS: 00000206 ORIG_RAX: 00000000000000e7
[10579.985426][ T348] RAX: ffffffffffffffda RBX: 00007fe288002000 RCX: 00007fe287a39256
[10579.986747][ T348] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000
[10579.988090][ T348] RBP: 0000000000001000 R08: 00000000000000e7 R09: ffffffffffffff80
[10579.989422][ T348] R10: 0000000000000005 R11: 0000000000000206 R12: 00007fe288002001
[10579.990762][ T348] R13: 00007fe288002fe9 R14: 000000000000003a R15: 0000000055555556
[10579.992179][ T348] INFO: task trinity-c38:253929 blocked for more than 122 seconds.
[10579.993503][ T348] Tainted: G O 5.9.0-next-20201013+ #2
[10579.994787][ T348] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[10579.996298][ T348] task:trinity-c38 state:D stack:26896 pid:253929 ppid: 87180 flags:0x00000004
[10579.997897][ T348] Call Trace:
[10579.998475][ T348] __schedule+0x71d/0x1b50
[10579.999216][ T348] ? __sched_text_start+0x8/0x8
[10580.000107][ T348] schedule+0xbf/0x270
[10580.000823][ T348] rwsem_down_write_slowpath+0x8ea/0xf30
[10580.001794][ T348] ? rwsem_mark_wake+0x8d0/0x8d0
[10580.002676][ T348] ? lockdep_hardirqs_on_prepare+0x3d0/0x3d0
[10580.003684][ T348] ? rcu_read_lock_sched_held+0x9c/0xd0
[10580.004650][ T348] ? lock_acquire+0x1c8/0x820
[10580.005405][ T348] ? chmod_common+0x148/0x390
[10580.006219][ T348] ? lock_acquire+0x1c8/0x820
[10580.007035][ T348] ? rcu_read_unlock+0x40/0x40
[10580.007765][ T348] ? down_write+0x138/0x150
[10580.008562][ T348] down_write+0x138/0x150
[10580.009244][ T348] ? down_write_killable_nested+0x170/0x170
[10580.010254][ T348] ? __sb_start_write+0x229/0x2d0
[10580.011140][ T348] chmod_common+0x148/0x390
[10580.011949][ T348] ? __x64_sys_chroot+0x1e0/0x1e0
[10580.012740][ T348] ? lock_downgrade+0x700/0x700
[10580.013567][ T348] ? syscall_enter_from_user_mode+0x17/0x50
[10580.014569][ T348] ? rcu_read_lock_sched_held+0x9c/0xd0
[10580.015460][ T348] __x64_sys_fchmod+0x6c/0xa0
[10580.016249][ T348] do_syscall_64+0x33/0x40
[10580.017004][ T348] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[10580.017995][ T348] RIP: 0033:0x7fe287a6778d
[10580.018796][ T348] Code: Unable to access opcode bytes at RIP 0x7fe287a67763.
[10580.020098][ T348] RSP: 002b:00007ffc5fb8abe8 EFLAGS: 00000246 ORIG_RAX: 000000000000005b
[10580.021572][ T348] RAX: ffffffffffffffda RBX: 000000000000005b RCX: 00007fe287a6778d
[10580.022902][ T348] RDX: fffffffffffffffb RSI: 0000000000000084 RDI: 00000000000001a0
[10580.024246][ T348] RBP: 000000000000005b R08: 00000000bcbcbcbc R09: 00000000000000d8
[10580.025580][ T348] R10: 00bfa42b104256ef R11: 0000000000000246 R12: 0000000000000002
[10580.026934][ T348] R13: 00007fe288043058 R14: 00007fe2881546c0 R15: 00007fe288043000
[10580.028237][ T348] INFO: task trinity-c2:254053 blocked for more than 122 seconds.
[10580.029594][ T348] Tainted: G O 5.9.0-next-20201013+ #2
[10580.030838][ T348] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[10580.032359][ T348] task:trinity-c2 state:D stack:26704 pid:254053 ppid: 87180 flags:0x00004002
[10580.033911][ T348] Call Trace:
[10580.034442][ T348] __schedule+0x71d/0x1b50
[10580.035243][ T348] ? __sched_text_start+0x8/0x8
[10580.036011][ T348] schedule+0xbf/0x270
[10580.036750][ T348] rwsem_down_write_slowpath+0x8ea/0xf30
[10580.037721][ T348] ? rwsem_mark_wake+0x8d0/0x8d0
[10580.038554][ T348] ? lockdep_hardirqs_on_prepare+0x3d0/0x3d0
[10580.039528][ T348] ? rcu_read_lock_sched_held+0x9c/0xd0
[10580.040460][ T348] ? lock_acquire+0x1c8/0x820
[10580.041325][ T348] ? down_write+0x138/0x150
[10580.042058][ T348] ? down_write+0xb3/0x150
[10580.042833][ T348] down_write+0x138/0x150
[10580.043535][ T348] ? down_write_killable_nested+0x170/0x170
[10580.044569][ T348] fuse_flush+0x1a0/0x500 [fuse]
[10580.045408][ T348] ? fuse_file_lock+0x190/0x190 [fuse]
[10580.046338][ T348] filp_close+0x97/0x110
[10580.047069][ T348] put_files_struct+0x15a/0x250
[10580.047884][ T348] do_exit+0x8a9/0x23a0
[10580.048652][ T348] ? mm_update_next_owner+0x740/0x740
[10580.049585][ T348] ? up_read+0x1a3/0x730
[10580.050306][ T348] ? down_read_nested+0x420/0x420
[10580.051309][ T348] ? syscall_enter_from_user_mode+0x17/0x50
[10580.052326][ T348] ? rcu_read_lock_sched_held+0x9c/0xd0
[10580.053330][ T348] ? rcu_read_lock_sched_held+0x9c/0xd0
[10580.054269][ T348] do_group_exit+0xeb/0x2d0
[10580.054996][ T348] __x64_sys_exit_group+0x35/0x40
[10580.055871][ T348] do_syscall_64+0x33/0x40
[10580.056661][ T348] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[10580.057602][ T348] RIP: 0033:0x7fe287a39256
[10580.058376][ T348] Code: Unable to access opcode bytes at RIP 0x7fe287a3922c.
[10580.059638][ T348] RSP: 002b:00007ffc5fb89f28 EFLAGS: 00000206 ORIG_RAX: 00000000000000e7
[10580.061034][ T348] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fe287a39256
[10580.062400][ T348] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000
[10580.063772][ T348] RBP: 0000000000001000 R08: 00000000000000e7 R09: ffffffffffffff80
[10580.065155][ T348] R10: 0000000000000005 R11: 0000000000000206 R12: 00007fe28813f058
[10580.066553][ T348] R13: 00007fe28813f058 R14: 0000000000000001 R15: 0000000000000030
[10580.067903][ T348] INFO: task trinity-c18:254111 blocked for more than 122 seconds.
[10580.069228][ T348] Tainted: G O 5.9.0-next-20201013+ #2
[10580.070412][ T348] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[10580.071999][ T348] task:trinity-c18 state:D stack:26704 pid:254111 ppid: 87180 flags:0x00004002
[10580.073522][ T348] Call Trace:
[10580.074081][ T348] __schedule+0x71d/0x1b50
[10580.074837][ T348] ? __sched_text_start+0x8/0x8
[10580.075639][ T348] schedule+0xbf/0x270
[10580.076359][ T348] rwsem_down_write_slowpath+0x8ea/0xf30
[10580.077348][ T348] ? rwsem_mark_wake+0x8d0/0x8d0
[10580.078158][ T348] ? lockdep_hardirqs_on_prepare+0x3d0/0x3d0
[10580.079179][ T348] ? rcu_read_lock_sched_held+0x9c/0xd0
[10580.080200][ T348] ? lock_acquire+0x1c8/0x820
[10580.080946][ T348] ? down_write+0x138/0x150
[10580.081715][ T348] ? down_write+0xb3/0x150
[10580.082530][ T348] down_write+0x138/0x150
[10580.083205][ T348] ? down_write_killable_nested+0x170/0x170
[10580.084211][ T348] fuse_flush+0x1a0/0x500 [fuse]
[10580.085075][ T348] ? fuse_file_lock+0x190/0x190 [fuse]
[10580.085977][ T348] filp_close+0x97/0x110
[10580.086671][ T348] put_files_struct+0x15a/0x250
[10580.087576][ T348] do_exit+0x8a9/0x23a0
[10580.088207][ T348] ? _raw_spin_unlock+0x1/0x30
[10580.089073][ T348] ? _raw_spin_unlock_irq+0x1f/0x30
[10580.090009][ T348] ? signal_setup_done+0x1a3/0x230
[10580.090875][ T348] ? lockdep_hardirqs_on_prepare+0x27c/0x3d0
[10580.091871][ T348] ? mm_update_next_owner+0x740/0x740
[10580.092796][ T348] ? fpu__clear+0xd5/0x240
[10580.093593][ T348] ? __local_bh_enable_ip+0xa0/0xf0
[10580.094518][ T348] ? fpu__clear+0xeb/0x240
[10580.095331][ T348] ? syscall_enter_from_user_mode+0x17/0x50
[10580.096347][ T348] ? rcu_read_lock_sched_held+0x9c/0xd0
[10580.097322][ T348] ? rcu_read_lock_sched_held+0x9c/0xd0
[10580.098190][ T348] do_group_exit+0xeb/0x2d0
[10580.099028][ T348] __x64_sys_exit_group+0x35/0x40
[10580.099905][ T348] do_syscall_64+0x33/0x40
[10580.100637][ T348] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[10580.101694][ T348] RIP: 0033:0x7fe287a39256
[10580.102472][ T348] Code: Unable to access opcode bytes at RIP 0x7fe287a3922c.
[10580.103736][ T348] RSP: 002b:00007ffc5fb89ce8 EFLAGS: 00000206 ORIG_RAX: 00000000000000e7
[10580.105231][ T348] RAX: ffffffffffffffda RBX: ffffffffffffffff RCX: 00007fe287a39256
[10580.106578][ T348] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000
[10580.107917][ T348] RBP: 0000000000000000 R08: 00000000000000e7 R09: ffffffffffffff80
[10580.109213][ T348] R10: 0000000000000005 R11: 0000000000000206 R12: 00007ffc5fb8aa00
[10580.110526][ T348] R13: 0000000000423e96 R14: 00007ffc5fb8ab40 R15: 0000000000000001
[10580.111923][ T348] INFO: task trinity-c14:254134 blocked for more than 123 seconds.
[10580.113207][ T348] Tainted: G O 5.9.0-next-20201013+ #2
[10580.114465][ T348] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[10580.115942][ T348] task:trinity-c14 state:D stack:26448 pid:254134 ppid: 87180 flags:0x00000004
[10580.117496][ T348] Call Trace:
[10580.118065][ T348] __schedule+0x71d/0x1b50
[10580.118804][ T348] ? __sched_text_start+0x8/0x8
[10580.119711][ T348] schedule+0xbf/0x270
[10580.120378][ T348] schedule_preempt_disabled+0xc/0x20
[10580.121307][ T348] __mutex_lock+0x9f1/0x1360
[10580.122117][ T348] ? __fdget_pos+0x9c/0xb0
[10580.122828][ T348] ? mutex_lock_io_nested+0x1240/0x1240
[10580.123780][ T348] ? rcu_read_lock_sched_held+0x9c/0xd0
[10580.124696][ T348] ? rcu_read_lock_bh_held+0xb0/0xb0
[10580.125522][ T348] ? __fdget_pos+0x9c/0xb0
[10580.126289][ T348] __fdget_pos+0x9c/0xb0
[10580.126981][ T348] do_writev+0x6d/0x1e0
[10580.127650][ T348] ? vfs_writev+0x2d0/0x2d0
[10580.128394][ T348] ? lockdep_hardirqs_on_prepare+0x27c/0x3d0
[10580.129423][ T348] ? syscall_enter_from_user_mode+0x1c/0x50
[10580.130416][ T348] do_syscall_64+0x33/0x40
[10580.131233][ T348] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[10580.132250][ T348] RIP: 0033:0x7fe287a6778d
[10580.133013][ T348] Code: Unable to access opcode bytes at RIP 0x7fe287a67763.
[10580.134223][ T348] RSP: 002b:00007ffc5fb8abe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000014
[10580.135718][ T348] RAX: ffffffffffffffda RBX: 0000000000000014 RCX: 00007fe287a6778d
[10580.137065][ T348] RDX: 0000000000000049 RSI: 000000000267d300 RDI: 00000000000001a0
[10580.138443][ T348] RBP: 0000000000000014 R08: 00000000efefefef R09: 000000005e5e5e5e
[10580.139820][ T348] R10: 0041a7001010e807 R11: 0000000000000246 R12: 0000000000000002
[10580.141190][ T348] R13: 00007fe2880eb058 R14: 00007fe2881546c0 R15: 00007fe2880eb000
[10580.142571][ T348] INFO: task trinity-c36:254165 blocked for more than 123 seconds.
[10580.143924][ T348] Tainted: G O 5.9.0-next-20201013+ #2
[10580.145158][ T348] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[10580.146636][ T348] task:trinity-c36 state:D stack:26704 pid:254165 ppid: 87180 flags:0x00000004
[10580.148260][ T348] Call Trace:
[10580.148789][ T348] __schedule+0x71d/0x1b50
[10580.149532][ T348] ? __sched_text_start+0x8/0x8
[10580.150343][ T348] schedule+0xbf/0x270
[10580.151044][ T348] schedule_preempt_disabled+0xc/0x20
[10580.152006][ T348] __mutex_lock+0x9f1/0x1360
[10580.152777][ T348] ? __fdget_pos+0x9c/0xb0
[10580.153484][ T348] ? mutex_lock_io_nested+0x1240/0x1240
[10580.154432][ T348] ? find_held_lock+0x33/0x1c0
[10580.155220][ T348] ? __fdget_pos+0x9c/0xb0
[10580.155934][ T348] __fdget_pos+0x9c/0xb0
[10580.156660][ T348] __x64_sys_getdents+0xff/0x230
[10580.157488][ T348] ? __x64_sys_old_readdir+0x170/0x170
[10580.158429][ T348] ? iterate_dir+0x610/0x610
[10580.159176][ T348] ? lockdep_hardirqs_on_prepare+0x27c/0x3d0
[10580.160214][ T348] ? syscall_enter_from_user_mode+0x1c/0x50
[10580.161253][ T348] do_syscall_64+0x33/0x40
[10580.162005][ T348] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[10580.162964][ T348] RIP: 0033:0x7fe287a6778d
[10580.163713][ T348] Code: Unable to access opcode bytes at RIP 0x7fe287a67763.
[10580.164940][ T348] RSP: 002b:00007ffc5fb8abe8 EFLAGS: 00000246 ORIG_RAX: 000000000000004e
[10580.166354][ T348] RAX: ffffffffffffffda RBX: 000000000000004e RCX: 00007fe287a6778d
[10580.167703][ T348] RDX: 0000000000000004 RSI: 00007fe285f4c000 RDI: 00000000000001a0
[10580.169039][ T348] RBP: 000000000000004e R08: fffffffffffffff9 R09: fffffffffffffff6
[10580.170347][ T348] R10: 149a823509203c58 R11: 0000000000000246 R12: 0000000000000002
[10580.171835][ T348] R13: 00007fe288051058 R14: 00007fe2881546c0 R15: 00007fe288051000
[10580.173198][ T348] INFO: task trinity-c10:254420 blocked for more than 123 seconds.
[10580.174601][ T348] Tainted: G O 5.9.0-next-20201013+ #2
[10580.175869][ T348] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[10580.177311][ T348] task:trinity-c10 state:D stack:26896 pid:254420 ppid: 87180 flags:0x00000004
[10580.178940][ T348] Call Trace:
[10580.179573][ T348] __schedule+0x71d/0x1b50
[10580.180306][ T348] ? __sched_text_start+0x8/0x8
[10580.181142][ T348] schedule+0xbf/0x270
[10580.181874][ T348] schedule_preempt_disabled+0xc/0x20
[10580.182748][ T348] __mutex_lock+0x9f1/0x1360
[10580.183502][ T348] ? __fdget_pos+0x9c/0xb0
[10580.184251][ T348] ? mutex_lock_io_nested+0x1240/0x1240
[10580.185163][ T348] ? rcu_read_lock_sched_held+0x9c/0xd0
[10580.186072][ T348] ? rcu_read_lock_bh_held+0xb0/0xb0
[10580.187012][ T348] ? __task_pid_nr_ns+0x127/0x3a0
[10580.187871][ T348] ? __fdget_pos+0x9c/0xb0
[10580.188578][ T348] __fdget_pos+0x9c/0xb0
[10580.189326][ T348] ksys_read+0x66/0x1c0
[10580.189998][ T348] ? vfs_write+0x5b0/0x5b0
[10580.190818][ T348] ? lockdep_hardirqs_on_prepare+0x27c/0x3d0
[10580.191920][ T348] ? syscall_enter_from_user_mode+0x1c/0x50
[10580.192936][ T348] do_syscall_64+0x33/0x40
[10580.193615][ T348] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[10580.194632][ T348] RIP: 0033:0x7fe287a6778d
[10580.195401][ T348] Code: Unable to access opcode bytes at RIP 0x7fe287a67763.
[10580.196638][ T348] RSP: 002b:00007ffc5fb8abe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[10580.198043][ T348] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe287a6778d
[10580.199400][ T348] RDX: 0000000000001000 RSI: 00007fe285b4c000 RDI: 00000000000001a0
[10580.200781][ T348] RBP: 0000000000000000 R08: 00aa60de2c3afd2c R09: 000000000000e000
[10580.202209][ T348] R10: ffffffffffffffdb R11: 0000000000000246 R12: 0000000000000002
[10580.203567][ T348] R13: 00007fe288107058 R14: 00007fe2881546c0 R15: 00007fe288107000
[10580.204886][ T348] INFO: task trinity-c42:254437 blocked for more than 123 seconds.
[10580.206177][ T348] Tainted: G O 5.9.0-next-20201013+ #2
[10580.207398][ T348] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[10580.208828][ T348] task:trinity-c42 state:D stack:27088 pid:254437 ppid: 87180 flags:0x00000004
[10580.210393][ T348] Call Trace:
[10580.210891][ T348] __schedule+0x71d/0x1b50
[10580.211768][ T348] ? __sched_text_start+0x8/0x8
[10580.212537][ T348] schedule+0xbf/0x270
[10580.213236][ T348] rwsem_down_write_slowpath+0x8ea/0xf30
[10580.214213][ T348] ? rwsem_mark_wake+0x8d0/0x8d0
[10580.215010][ T348] ? lockdep_hardirqs_on_prepare+0x3d0/0x3d0
[10580.215990][ T348] ? rcu_read_lock_sched_held+0x9c/0xd0
[10580.216942][ T348] ? lock_acquire+0x1c8/0x820
[10580.217787][ T348] ? mark_lock.part.47+0x109/0x1910
[10580.218584][ T348] ? down_write+0x138/0x150
[10580.219335][ T348] ? down_write+0xb3/0x150
[10580.220101][ T348] down_write+0x138/0x150
[10580.220792][ T348] ? down_write_killable_nested+0x170/0x170
[10580.221843][ T348] fuse_file_write_iter+0x22e/0x900 [fuse]
[10580.222859][ T348] ? lockdep_hardirqs_on_prepare+0x3d0/0x3d0
[10580.223904][ T348] new_sync_write+0x3aa/0x610
[10580.224631][ T348] ? new_sync_read+0x600/0x600
[10580.225427][ T348] ? vfs_write+0x36c/0x5b0
[10580.226166][ T348] ? rcu_read_lock_any_held+0xcd/0xf0
[10580.227018][ T348] vfs_write+0x3e9/0x5b0
[10580.227804][ T348] ksys_pwrite64+0x116/0x140
[10580.228621][ T348] ? __x64_sys_pread64+0xf0/0xf0
[10580.229375][ T348] ? lockdep_hardirqs_on_prepare+0x27c/0x3d0
[10580.230364][ T348] ? syscall_enter_from_user_mode+0x1c/0x50
[10580.231427][ T348] do_syscall_64+0x33/0x40
[10580.232203][ T348] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[10580.233152][ T348] RIP: 0033:0x7fe287a6778d
[10580.233913][ T348] Code: Unable to access opcode bytes at RIP 0x7fe287a67763.
[10580.235172][ T348] RSP: 002b:00007ffc5fb8abe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000012
[10580.236639][ T348] RAX: ffffffffffffffda RBX: 0000000000000012 RCX: 00007fe287a6778d
[10580.237930][ T348] RDX: 0000000000000986 RSI: 000000000266e960 RDI: 00000000000001a0
[10580.239174][ T348] RBP: 0000000000000012 R08: 00000000232714aa R09: 0000000000000077
[10580.240466][ T348] R10: 4200490003c05550 R11: 0000000000000246 R12: 0000000000000002
[10580.241848][ T348] R13: 00007fe288027058 R14: 00007fe2881546c0 R15: 00007fe288027000
[10580.243194][ T348] INFO: task trinity-subchil:254451 blocked for more than 123 seconds.
[10580.244565][ T348] Tainted: G O 5.9.0-next-20201013+ #2
[10580.245760][ T348] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[10580.247194][ T348] task:trinity-subchil state:D stack:27664 pid:254451 ppid:254226 flags:0x00004000
[10580.248682][ T348] Call Trace:
[10580.249157][ T348] __schedule+0x71d/0x1b50
[10580.249926][ T348] ? __sched_text_start+0x8/0x8
[10580.250653][ T348] schedule+0xbf/0x270
[10580.251479][ T348] rwsem_down_write_slowpath+0x8ea/0xf30
[10580.252378][ T348] ? rwsem_mark_wake+0x8d0/0x8d0
[10580.253114][ T348] ? lockdep_hardirqs_on_prepare+0x3d0/0x3d0
[10580.254133][ T348] ? rcu_read_lock_sched_held+0x9c/0xd0
[10580.255099][ T348] ? lock_acquire+0x1c8/0x820
[10580.255813][ T348] ? down_write+0x138/0x150
[10580.256597][ T348] ? down_write+0xb3/0x150
[10580.257350][ T348] down_write+0x138/0x150
[10580.258012][ T348] ? down_write_killable_nested+0x170/0x170
[10580.259034][ T348] fuse_flush+0x1a0/0x500 [fuse]
[10580.259927][ T348] ? fuse_file_lock+0x190/0x190 [fuse]
[10580.260774][ T348] filp_close+0x97/0x110
[10580.261521][ T348] put_files_struct+0x15a/0x250
[10580.262402][ T348] do_exit+0x8a9/0x23a0
[10580.263052][ T348] ? mm_update_next_owner+0x740/0x740
[10580.263949][ T348] ? up_read+0x1a3/0x730
[10580.264699][ T348] ? down_read_nested+0x420/0x420
[10580.265463][ T348] ? syscall_enter_from_user_mode+0x17/0x50
[10580.266417][ T348] ? rcu_read_lock_sched_held+0x9c/0xd0
[10580.267335][ T348] ? rcu_read_lock_sched_held+0x9c/0xd0
[10580.268302][ T348] do_group_exit+0xeb/0x2d0
[10580.268978][ T348] __x64_sys_exit_group+0x35/0x40
[10580.269801][ T348] do_syscall_64+0x33/0x40
[10580.270565][ T348] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[10580.271568][ T348] RIP: 0033:0x7fe287a39256
[10580.272331][ T348] Code: Unable to access opcode bytes at RIP 0x7fe287a3922c.
[10580.273576][ T348] RSP: 002b:00007ffc5fb8ac68 EFLAGS: 00000202 ORIG_RAX: 00000000000000e7
[10580.275038][ T348] RAX: ffffffffffffffda RBX: 00007fe2880b3000 RCX: 00007fe287a39256
[10580.276310][ T348] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000
[10580.277673][ T348] RBP: 0000000000000000 R08: 00000000000000e7 R09: ffffffffffffff80
[10580.279016][ T348] R10: 0000000000000005 R11: 0000000000000202 R12: 00007fe2880b3000
[10580.280344][ T348] R13: 00007fe2880b3058 R14: 0000000000000000 R15: 0000000000000030
[10580.281779][ T348] INFO: task trinity-subchil:254452 blocked for more than 123 seconds.
[10580.283124][ T348] Tainted: G O 5.9.0-next-20201013+ #2
[10580.284289][ T348] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[10580.285737][ T348] task:trinity-subchil state:D stack:27664 pid:254452 ppid:254342 flags:0x00004000
[10580.287279][ T348] Call Trace:
[10580.287752][ T348] __schedule+0x71d/0x1b50
[10580.288578][ T348] ? __sched_text_start+0x8/0x8
[10580.289384][ T348] schedule+0xbf/0x270
[10580.289993][ T348] rwsem_down_write_slowpath+0x8ea/0xf30
[10580.290973][ T348] ? rwsem_mark_wake+0x8d0/0x8d0
[10580.291919][ T348] ? lockdep_hardirqs_on_prepare+0x3d0/0x3d0
[10580.292913][ T348] ? rcu_read_lock_sched_held+0x9c/0xd0
[10580.293864][ T348] ? lock_acquire+0x1c8/0x820
[10580.294685][ T348] ? down_write+0x138/0x150
[10580.295407][ T348] ? down_write+0xb3/0x150
[10580.296178][ T348] down_write+0x138/0x150
[10580.296964][ T348] ? down_write_killable_nested+0x170/0x170
[10580.297959][ T348] fuse_flush+0x1a0/0x500 [fuse]
[10580.298792][ T348] ? fuse_file_lock+0x190/0x190 [fuse]
[10580.299719][ T348] filp_close+0x97/0x110
[10580.300390][ T348] put_files_struct+0x15a/0x250
[10580.301290][ T348] do_exit+0x8a9/0x23a0
[10580.301918][ T348] ? mm_update_next_owner+0x740/0x740
[10580.302843][ T348] ? up_read+0x1a3/0x730
[10580.303605][ T348] ? down_read_nested+0x420/0x420
[10580.304378][ T348] ? syscall_enter_from_user_mode+0x17/0x50
[10580.305392][ T348] ? rcu_read_lock_sched_held+0x9c/0xd0
[10580.306346][ T348] ? rcu_read_lock_sched_held+0x9c/0xd0
[10580.307267][ T348] do_group_exit+0xeb/0x2d0
[10580.307925][ T348] __x64_sys_exit_group+0x35/0x40
[10580.308785][ T348] do_syscall_64+0x33/0x40
[10580.309512][ T348] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[10580.310465][ T348] RIP: 0033:0x7fe287a39256
[10580.311280][ T348] Code: Unable to access opcode bytes at RIP 0x7fe287a3922c.
[10580.312520][ T348] RSP: 002b:00007ffc5fb8ac68 EFLAGS: 00000202 ORIG_RAX: 00000000000000e7
[10580.313932][ T348] RAX: ffffffffffffffda RBX: 00007fe2880c1000 RCX: 00007fe287a39256
[10580.315276][ T348] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000
[10580.316697][ T348] RBP: 0000000000000000 R08: 00000000000000e7 R09: ffffffffffffff80
[10580.318096][ T348] R10: 0000000000000005 R11: 0000000000000202 R12: 00007fe2880c1000
[10580.319423][ T348] R13: 00007fe2880c1058 R14: 0000000000000000 R15: 0000000000000030
[10580.320790][ T348]
[10580.320790][ T348] Showing all locks held in the system:
[10580.322269][ T348] 1 lock held by khungtaskd/348:
[10580.323092][ T348] #0: ffffffff984ceee0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire.constprop.52+0x0/0x30
[10580.324875][ T348] 2 locks held by systemd-journal/787:
[10580.325886][ T348] 5 locks held by in:imjournal/54792:
[10580.326834][ T348] 2 locks held by trinity-c11/253653:
[10580.327686][ T348] #0: ffff888bccaf2098 (&rq->lock){-.-.}-{2:2}, at: newidle_balance+0x9c9/0xec0
[10580.329282][ T348] #1: ffffffff984ceee0 (rcu_read_lock){....}-{1:2}, at: perf_iterate_sb+0x0/0x510
[10580.330893][ T348] 1 lock held by trinity-c25/253906:
[10580.331886][ T348] #0: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_flush+0x1a0/0x500 [fuse]
[10580.333762][ T348] 2 locks held by trinity-c38/253929:
[10580.334690][ T348] #0: ffff888133e59430 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x37/0xa0
[10580.336191][ T348] #1: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: chmod_common+0x148/0x390
[10580.338056][ T348] 2 locks held by trinity-c3/254046:
[10580.338886][ T348] #0: ffff888bcd1b2098 (&rq->lock){-.-.}-{2:2}, at: __schedule+0x208/0x1b50
[10580.340366][ T348] #1: ffff88814c96d620 (&ctx->lock){-.-.}-{2:2}, at: __perf_event_task_sched_out+0x41e/0x1450
[10580.342178][ T348] 1 lock held by trinity-c2/254053:
[10580.343074][ T348] #0: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_flush+0x1a0/0x500 [fuse]
[10580.344792][ T348] 1 lock held by trinity-c18/254111:
[10580.345695][ T348] #0: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_flush+0x1a0/0x500 [fuse]
[10580.347647][ T348] 1 lock held by trinity-c14/254134:
[10580.348480][ T348] #0: ffff888765a3c730 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x9c/0xb0
[10580.350051][ T348] 1 lock held by trinity-c36/254165:
[10580.350867][ T348] #0: ffff888765a3c730 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x9c/0xb0
[10580.352486][ T348] 3 locks held by trinity-c33/254219:
[10580.353342][ T348] #0: ffff888765a3c730 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x9c/0xb0
[10580.354938][ T348] #1: ffff888133e59430 (sb_writers#16){.+.+}-{0:0}, at: vfs_writev+0x20d/0x2d0
[10580.356485][ T348] #2: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_file_write_iter+0x22e/0x900 [fuse]
[10580.358569][ T348] 2 locks held by trinity-c17/254306:
[10580.359425][ T348] #0: ffff888bcca72098 (&rq->lock){-.-.}-{2:2}, at: newidle_balance+0x9c9/0xec0
[10580.361024][ T348] #1: ffff888926d8b820 (&ctx->lock){-.-.}-{2:2}, at: __perf_event_task_sched_out+0x41e/0x1450
[10580.362834][ T348] 2 locks held by trinity-c34/254348:
[10580.363761][ T348] #0: ffff888bccc32098 (&rq->lock){-.-.}-{2:2}, at: __schedule+0x208/0x1b50
[10580.365306][ T348] #1: ffffffff984e2f08 (tk_core.seq.seqcount){----}-{0:0}, at: __perf_event_task_sched_out+0x41e/0x1450
[10580.367250][ T348] 1 lock held by trinity-c10/254420:
[10580.368134][ T348] #0: ffff888765a3c730 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x9c/0xb0
[10580.369683][ T348] 2 locks held by trinity-c42/254437:
[10580.370590][ T348] #0: ffff888133e59430 (sb_writers#16){.+.+}-{0:0}, at: vfs_write+0x36c/0x5b0
[10580.372159][ T348] #1: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_file_write_iter+0x22e/0x900 [fuse]
[10580.374134][ T348] 1 lock held by trinity-subchil/254451:
[10580.375141][ T348] #0: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_flush+0x1a0/0x500 [fuse]
[10580.376963][ T348] 1 lock held by trinity-subchil/254452:
[10580.377925][ T348] #0: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_flush+0x1a0/0x500 [fuse]
[10580.379894][ T348] 1 lock held by trinity-c28/254453:
[10580.380783][ T348] #0: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_flush+0x1a0/0x500 [fuse]
[10580.382701][ T348] 1 lock held by trinity-subchil/254454:
[10580.383660][ T348] #0: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_flush+0x1a0/0x500 [fuse]
[10580.385554][ T348] 1 lock held by trinity-subchil/254455:
[10580.386562][ T348] #0: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_flush+0x1a0/0x500 [fuse]
[10580.388314][ T348] 1 lock held by trinity-c27/254456:
[10580.389224][ T348] #0: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_flush+0x1a0/0x500 [fuse]
[10580.391160][ T348] 1 lock held by trinity-subchil/254457:
[10580.392087][ T348] #0: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_flush+0x1a0/0x500 [fuse]
[10580.393979][ T348] 1 lock held by trinity-subchil/254460:
[10580.394948][ T348] #0: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_flush+0x1a0/0x500 [fuse]
[10580.396757][ T348] 1 lock held by trinity-c9/254461:
[10580.397644][ T348] #0: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_flush+0x1a0/0x500 [fuse]
[10580.399508][ T348] 1 lock held by trinity-subchil/254462:
[10580.400442][ T348] #0: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_flush+0x1a0/0x500 [fuse]
[10580.402424][ T348] 1 lock held by trinity-c24/254464:
[10580.403378][ T348] #0: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_flush+0x1a0/0x500 [fuse]
[10580.405237][ T348] 1 lock held by trinity-c46/254466:
[10580.406179][ T348] #0: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_flush+0x1a0/0x500 [fuse]
[10580.408058][ T348] 1 lock held by trinity-subchil/254468:
[10580.409026][ T348] #0: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_flush+0x1a0/0x500 [fuse]
[10580.410934][ T348] 1 lock held by trinity-c34/254469:
[10580.411903][ T348] #0: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_flush+0x1a0/0x500 [fuse]
[10580.413665][ T348] 1 lock held by trinity-subchil/254470:
[10580.414648][ T348] #0: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_flush+0x1a0/0x500 [fuse]
[10580.416421][ T348] 1 lock held by trinity-subchil/254471:
[10580.417365][ T348] #0: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_flush+0x1a0/0x500 [fuse]
[10580.419298][ T348] 1 lock held by trinity-subchil/254472:
[10580.420149][ T348] #0: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_flush+0x1a0/0x500 [fuse]
[10580.422064][ T348] 1 lock held by trinity-c30/254474:
[10580.422953][ T348] #0: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_flush+0x1a0/0x500 [fuse]
[10580.424714][ T348] 1 lock held by trinity-subchil/254475:
[10580.425695][ T348] #0: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_flush+0x1a0/0x500 [fuse]
[10580.427465][ T348] 1 lock held by trinity-c31/254476:
[10580.428366][ T348] #0: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_flush+0x1a0/0x500 [fuse]
[10580.430304][ T348] 1 lock held by trinity-c11/254477:
[10580.431160][ T348] #0: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_flush+0x1a0/0x500 [fuse]
[10580.433073][ T348] 1 lock held by trinity-c0/254478:
[10580.433979][ T348] #0: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_flush+0x1a0/0x500 [fuse]
[10580.435779][ T348] 1 lock held by trinity-subchil/254481:
[10580.436739][ T348] #0: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_flush+0x1a0/0x500 [fuse]
[10580.438628][ T348] 1 lock held by trinity-c29/254482:
[10580.439521][ T348] #0: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_flush+0x1a0/0x500 [fuse]
[10580.441414][ T348] 1 lock held by trinity-c8/254484:
[10580.442344][ T348] #0: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_flush+0x1a0/0x500 [fuse]
[10580.444198][ T348] 1 lock held by trinity-c5/254485:
[10580.445123][ T348] #0: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_flush+0x1a0/0x500 [fuse]
[10580.447055][ T348] 1 lock held by trinity-c15/254486:
[10580.447923][ T348] #0: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_flush+0x1a0/0x500 [fuse]
[10580.449816][ T348] 1 lock held by trinity-subchil/254487:
[10580.450749][ T348] #0: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_flush+0x1a0/0x500 [fuse]
[10580.452639][ T348] 1 lock held by trinity-c4/254488:
[10580.453494][ T348] #0: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_flush+0x1a0/0x500 [fuse]
[10580.455363][ T348] 1 lock held by trinity-subchil/254489:
[10580.456303][ T348] #0: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_flush+0x1a0/0x500 [fuse]
[10580.458074][ T348] 1 lock held by trinity-c3/254490:
[10580.458975][ T348] #0: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_flush+0x1a0/0x500 [fuse]
[10580.460773][ T348] 1 lock held by trinity-c21/254493:
[10580.461776][ T348] #0: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_flush+0x1a0/0x500 [fuse]
[10580.463657][ T348] 1 lock held by trinity-subchil/254495:
[10580.464497][ T348] #0: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_flush+0x1a0/0x500 [fuse]
[10580.466363][ T348] 1 lock held by trinity-subchil/254496:
[10580.467312][ T348] #0: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_flush+0x1a0/0x500 [fuse]
[10580.469139][ T348] 1 lock held by trinity-subchil/254497:
[10580.470096][ T348] #0: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_flush+0x1a0/0x500 [fuse]
[10580.471975][ T348] 1 lock held by trinity-c32/254498:
[10580.472774][ T348] #0: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_flush+0x1a0/0x500 [fuse]
[10580.474634][ T348] 1 lock held by trinity-c43/254499:
[10580.475441][ T348] #0: ffff8886e59d2088 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: fuse_flush+0x1a0/0x500 [fuse]
[10580.477308][ T348]
[10580.477652][ T348] =============================================
[10580.477652][ T348
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