INFO: task kworker/u4:0:9 blocked for more than 143 seconds.
Not tainted 6.2.0-rc1-next-20221226 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:0 state:D stack:24824 pid:9 ppid:2 flags:0x00004000
Workqueue: events_unbound io_ring_exit_work
Call Trace:
__schedule+0x926/0x25d0
schedule+0xde/0x1b0
schedule_timeout+0x1cf/0x290
__wait_for_common+0x1d3/0x550
io_ring_exit_work+0x590/0xc63
process_one_work+0xa0f/0x1690
worker_thread+0x63b/0x1260
kthread+0x2f1/0x3a0
ret_from_fork+0x2c/0x50
INFO: task kworker/u4:6:7836 blocked for more than 143 seconds.
Not tainted 6.2.0-rc1-next-20221226 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:6 state:D stack:25984 pid:7836 ppid:2 flags:0x00004000
Workqueue: events_unbound io_ring_exit_work
Call Trace:
__schedule+0x926/0x25d0
schedule+0xde/0x1b0
schedule_timeout+0x1cf/0x290
__wait_for_common+0x1d3/0x550
io_ring_exit_work+0x590/0xc63
process_one_work+0xa0f/0x1690
worker_thread+0x63b/0x1260
kthread+0x2f1/0x3a0
ret_from_fork+0x2c/0x50
Showing all locks held in the system:
2 locks held by kworker/u4:0/9:
#0: ffff888008471138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x90d/0x1690
#1: ffff888008d27db0 ((work_completion)(&ctx->exit_work)){+.+.}-{0:0}, at: process_one_work+0x941/0x1690
1 lock held by rcu_tasks_kthre/11:
#0: ffffffff85607b10 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc10
1 lock held by khungtaskd/25:
#0: ffffffff856085e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x57/0x2c2
4 locks held by systemd-journal/85:
1 lock held by in:imklog/161:
4 locks held by rs:main Q:Reg/162:
2 locks held by kworker/u4:6/7836:
#0: ffff888008471138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x90d/0x1690
#1: ffff888036ae7db0 ((work_completion)(&ctx->exit_work)){+.+.}-{0:0}, at: process_one_work+0x941/0x1690
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