tasks_rcu_exit_srcu_stall: rcu_tasks grace period number 25 (since boot) gp_state: RTGS_POST_SCAN_TASKLIST is 143545 jiffies old.
Please check any exiting tasks stuck between calls to exit_tasks_rcu_start() and exit_tasks_rcu_finish()
INFO: task rcu_tasks_kthre:13 blocked for more than 143 seconds.
Not tainted 6.5.0-rc7-next-20230824 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:rcu_tasks_kthre state:D stack:28488 pid:13 ppid:2 flags:0x00004000
Call Trace:
__schedule+0x9a9/0x2b00
schedule+0xdb/0x1a0
schedule_timeout+0x3b0/0x400
__wait_for_common+0x1d3/0x550
__synchronize_srcu+0x142/0x240
rcu_tasks_postscan+0x50/0x70
rcu_tasks_wait_gp+0x448/0xb90
rcu_tasks_one_gp+0xa8b/0xe30
rcu_tasks_kthread+0x1a7/0x240
kthread+0x33f/0x440
ret_from_fork+0x48/0x80
ret_from_fork_asm+0x1b/0x30
INFO: task kworker/0:2:63 blocked for more than 143 seconds.
Not tainted 6.5.0-rc7-next-20230824 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:2 state:D stack:25736 pid:63 ppid:2 flags:0x00004000
Workqueue: events kprobe_optimizer
Call Trace:
__schedule+0x9a9/0x2b00
schedule+0xdb/0x1a0
schedule_timeout+0x3b0/0x400
__wait_for_common+0x1d3/0x550
__wait_rcu_gp+0x24e/0x400
synchronize_rcu_tasks_generic.constprop.0+0xd6/0x170
kprobe_optimizer+0x343/0x7e0
process_one_work+0x7c8/0x1450
worker_thread+0x80e/0x1190
kthread+0x33f/0x440
ret_from_fork+0x48/0x80
ret_from_fork_asm+0x1b/0x30
INFO: task syz-executor.3:10211 blocked for more than 143 seconds.
Not tainted 6.5.0-rc7-next-20230824 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:26208 pid:10211 ppid:6934 flags:0x00004002
Call Trace:
__schedule+0x9a9/0x2b00
schedule+0xdb/0x1a0
schedule_preempt_disabled+0x10/0x20
__mutex_lock+0xc10/0x1a30
disable_kprobe+0x21/0x70
__disable_trace_kprobe+0xef/0x190
disable_trace_kprobe+0x267/0x2e0
kprobe_register+0x69/0xd0
perf_trace_event_unreg.isra.0+0xae/0x1e0
perf_kprobe_destroy+0xc8/0x200
_free_event+0x207/0x1190
perf_event_release_kernel+0x5b8/0x7a0
perf_release+0x37/0x50
__fput+0x400/0xa70
task_work_run+0x174/0x280
do_exit+0xa92/0x2740
do_group_exit+0xd4/0x2a0
get_signal+0x2693/0x2720
arch_do_signal_or_restart+0x81/0x790
exit_to_user_mode_prepare+0xeb/0x180
syscall_exit_to_user_mode+0x1d/0x50
do_syscall_64+0x4c/0x90
entry_SYSCALL_64_after_hwframe+0x6e/0xd8
RIP: 0033:0x7f6c68cf3b19
RSP: 002b:00007f6c66269188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: 0000000000000003 RBX: 00007f6c68e06f60 RCX: 00007f6c68cf3b19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000280
RBP: 00007f6c68d4df6d R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc3bd5b52f R14: 00007f6c66269300 R15: 0000000000022000
INFO: task syz-executor.0:10238 blocked for more than 143 seconds.
Not tainted 6.5.0-rc7-next-20230824 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:25776 pid:10238 ppid:3322 flags:0x00004002
Call Trace:
__schedule+0x9a9/0x2b00
schedule+0xdb/0x1a0
schedule_preempt_disabled+0x10/0x20
__mutex_lock+0xc10/0x1a30
perf_trace_destroy+0x27/0x1c0
_free_event+0x207/0x1190
perf_event_release_kernel+0x5b8/0x7a0
perf_release+0x37/0x50
__fput+0x400/0xa70
task_work_run+0x174/0x280
do_exit+0xa92/0x2740
do_group_exit+0xd4/0x2a0
get_signal+0x2693/0x2720
arch_do_signal_or_restart+0x81/0x790
exit_to_user_mode_prepare+0xeb/0x180
syscall_exit_to_user_mode+0x1d/0x50
do_syscall_64+0x4c/0x90
entry_SYSCALL_64_after_hwframe+0x6e/0xd8
RIP: 0033:0x7f2acf112b19
RSP: 002b:00007f2acc688188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: 0000000000000003 RBX: 00007f2acf225f60 RCX: 00007f2acf112b19
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000000020000080
RBP: 00007f2acf16cf6d R08: 0000000000000001 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd40fa5b8f R14: 00007f2acc688300 R15: 0000000000022000
INFO: task syz-executor.5:10246 blocked for more than 143 seconds.
Not tainted 6.5.0-rc7-next-20230824 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:26032 pid:10246 ppid:7095 flags:0x00004002
Call Trace:
__schedule+0x9a9/0x2b00
schedule+0xdb/0x1a0
schedule_preempt_disabled+0x10/0x20
__mutex_lock+0xc10/0x1a30
perf_trace_destroy+0x27/0x1c0
_free_event+0x207/0x1190
perf_event_release_kernel+0x5b8/0x7a0
perf_release+0x37/0x50
__fput+0x400/0xa70
task_work_run+0x174/0x280
do_exit+0xa92/0x2740
do_group_exit+0xd4/0x2a0
get_signal+0x2693/0x2720
arch_do_signal_or_restart+0x81/0x790
exit_to_user_mode_prepare+0xeb/0x180
syscall_exit_to_user_mode+0x1d/0x50
do_syscall_64+0x4c/0x90
entry_SYSCALL_64_after_hwframe+0x6e/0xd8
RIP: 0033:0x7fd652dc3b19
RSP: 002b:00007fd650339188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: 0000000000000003 RBX: 00007fd652ed6f60 RCX: 00007fd652dc3b19
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000000020000080
RBP: 00007fd652e1df6d R08: 0000000000000001 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffbcb962cf R14: 00007fd650339300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
#0: ffffffff8560dd50 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x73e/0xe30
1 lock held by khungtaskd/28:
#0: ffffffff8560e920 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x340
5 locks held by kworker/0:2/63:
#0: ffff888008468d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x69e/0x1450
#1: ffff88800ee3fd98 ((optimizing_work).work){+.+.}-{0:0}, at: process_one_work+0x6d1/0x1450
#2: ffffffff85657668 (kprobe_mutex){+.+.}-{3:3}, at: kprobe_optimizer+0x25/0x7e0
#3: ffffffff854e5350 (cpu_hotplug_lock){++++}-{0:0}, at: kprobe_optimizer+0x2a/0x7e0
#4: ffffffff854f9ac8 (text_mutex){+.+.}-{3:3}, at: kprobe_optimizer+0x38/0x7e0
1 lock held by in:imklog/171:
#0: ffff88800d4645c8 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe3/0x170
3 locks held by rs:main Q:Reg/172:
2 locks held by syz-executor.3/10211:
#0: ffffffff8566a8c8 (event_mutex){+.+.}-{3:3}, at: perf_kprobe_destroy+0x27/0x200
#1: ffffffff85657668 (kprobe_mutex){+.+.}-{3:3}, at: disable_kprobe+0x21/0x70
1 lock held by syz-executor.0/10238:
#0: ffffffff8566a8c8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0
1 lock held by syz-executor.5/10246:
#0: ffffffff8566a8c8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0
=============================================
tasks_rcu_exit_srcu_stall: rcu_tasks grace period number 25 (since boot) gp_state: RTGS_POST_SCAN_TASKLIST is 153785 jiffies old.
Please check any exiting tasks stuck between calls to exit_tasks_rcu_start() and exit_tasks_rcu_finish()