tasks_rcu_exit_srcu_stall: rcu_tasks grace period number 125 (since boot) gp_state: RTGS_POST_SCAN_TASKLIST is 153801 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:12 blocked for more than 143 seconds.
Not tainted 6.5.0-rc5-next-20230807 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:rcu_tasks_kthre state:D stack:28496 pid:12 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+0x2f/0x70
ret_from_fork_asm+0x1b/0x30
INFO: task kworker/0:2:49 blocked for more than 143 seconds.
Not tainted 6.5.0-rc5-next-20230807 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:2 state:D stack:25968 pid:49 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+0xabf/0x1770
worker_thread+0x64f/0x12a0
kthread+0x33f/0x440
ret_from_fork+0x2f/0x70
ret_from_fork_asm+0x1b/0x30
INFO: task syz-executor.0:4822 blocked for more than 143 seconds.
Not tainted 6.5.0-rc5-next-20230807 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:27104 pid:4822 ppid:1420 flags:0x00004006
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+0x400/0xac0
task_work_run+0x174/0x280
do_exit+0xa92/0x2740
do_group_exit+0xd4/0x2a0
get_signal+0x2693/0x2720
arch_do_signal_or_restart+0x79/0x590
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: 0033:0x7fceda7efb19
RSP: 002b:00007fced7d65218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007fceda902f68 RCX: 00007fceda7efb19
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fceda902f68
RBP: 00007fceda902f60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fceda902f6c
R13: 00007ffd0399b70f R14: 00007fced7d65300 R15: 0000000000022000
INFO: task syz-executor.7:4995 blocked for more than 143 seconds.
Not tainted 6.5.0-rc5-next-20230807 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.7 state:D stack:28536 pid:4995 ppid:269 flags:0x00004002
Call Trace:
__schedule+0x9a9/0x2b00
schedule+0xdb/0x1a0
schedule_preempt_disabled+0x10/0x20
__mutex_lock+0xc10/0x1a30
perf_kprobe_destroy+0x27/0x200
_free_event+0x207/0x1190
perf_event_release_kernel+0x5b8/0x7a0
perf_release+0x37/0x50
__fput+0x400/0xac0
task_work_run+0x174/0x280
do_exit+0xa92/0x2740
do_group_exit+0xd4/0x2a0
get_signal+0x2693/0x2720
arch_do_signal_or_restart+0x79/0x590
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: 0033:0x7fd223405b19
RSP: 002b:00007fd220939188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: 0000000000000009 RBX: 00007fd2235190e0 RCX: 00007fd223405b19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000280
RBP: 00007fd22345ff6d R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff00d986df R14: 00007fd220939300 R15: 0000000000022000
INFO: task syz-executor.2:4961 blocked for more than 143 seconds.
Not tainted 6.5.0-rc5-next-20230807 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:25792 pid:4961 ppid:272 flags:0x00004002
Call Trace:
__schedule+0x9a9/0x2b00
schedule+0xdb/0x1a0
schedule_preempt_disabled+0x10/0x20
__mutex_lock+0xc10/0x1a30
perf_kprobe_destroy+0x27/0x200
_free_event+0x207/0x1190
perf_event_release_kernel+0x5b8/0x7a0
perf_release+0x37/0x50
__fput+0x400/0xac0
task_work_run+0x174/0x280
do_exit+0xa92/0x2740
do_group_exit+0xd4/0x2a0
get_signal+0x2693/0x2720
arch_do_signal_or_restart+0x79/0x590
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: 0033:0x7f820235fb19
RSP: 002b:00007f81ff8d5188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: 0000000000000009 RBX: 00007f8202472f60 RCX: 00007f820235fb19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000280
RBP: 00007f82023b9f6d R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffda016640f R14: 00007f81ff8d5300 R15: 0000000000022000
INFO: task syz-executor.6:4996 blocked for more than 143 seconds.
Not tainted 6.5.0-rc5-next-20230807 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.6 state:D stack:28472 pid:4996 ppid:271 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+0x400/0xac0
task_work_run+0x174/0x280
do_exit+0xa92/0x2740
do_group_exit+0xd4/0x2a0
get_signal+0x2693/0x2720
arch_do_signal_or_restart+0x79/0x590
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: 0033:0x7f57877adb19
RSP: 002b:00007f5784d02188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: 0000000000000009 RBX: 00007f57878c1020 RCX: 00007f57877adb19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000280
RBP: 00007f5787807f6d R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcfc32a85f R14: 00007f5784d02300 R15: 0000000000022000
INFO: task syz-executor.5:4998 blocked for more than 143 seconds.
Not tainted 6.5.0-rc5-next-20230807 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:26312 pid:4998 ppid:276 flags:0x00000004
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+0x400/0xac0
task_work_run+0x174/0x280
exit_to_user_mode_prepare+0x17d/0x180
syscall_exit_to_user_mode+0x1d/0x50
do_syscall_64+0x4c/0x90
entry_SYSCALL_64_after_hwframe+0x6e/0xd8
RIP: 0033:0x7fd9af45772b
RSP: 002b:00007fff9c955fa0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000006 RCX: 00007fd9af45772b
RDX: 0000000000000000 RSI: 00007fd9aeecd3c0 RDI: 0000000000000005
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000001b2c82df70
R10: 00000000000019ab R11: 0000000000000293 R12: 00007fd9af5b8b60
R13: 00007fd9af5b8b60 R14: 00007fd9af5b7f60 R15: 000000000005b996
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8560b6d0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x73e/0xe30
1 lock held by khungtaskd/25:
#0: ffffffff8560c2a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x340
5 locks held by kworker/0:2/49:
#0: ffff888008468d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x99d/0x1770
#1: ffff88800e21fd90 ((optimizing_work).work){+.+.}-{0:0}, at: process_one_work+0x9d0/0x1770
#2: ffffffff85655028 (kprobe_mutex){+.+.}-{3:3}, at: kprobe_optimizer+0x25/0x7e0
#3: ffffffff854e2fd0 (cpu_hotplug_lock){++++}-{0:0}, at: kprobe_optimizer+0x2a/0x7e0
#4: ffffffff854f75a8 (text_mutex){+.+.}-{3:3}, at: kprobe_optimizer+0x38/0x7e0
2 locks held by in:imklog/163:
#0: ffff88800db59248 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe3/0x170
#1: ffff88806cf39798 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x1d0/0x2b00
1 lock held by syz-executor.5/4774:
#0: ffffffff85668288 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0
1 lock held by syz-executor.5/4820:
#0: ffffffff85668288 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0
1 lock held by syz-executor.0/4822:
#0: ffffffff85668288 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0
1 lock held by syz-executor.7/4995:
#0: ffffffff85668288 (event_mutex){+.+.}-{3:3}, at: perf_kprobe_destroy+0x27/0x200
1 lock held by syz-executor.2/4961:
#0: ffffffff85668288 (event_mutex){+.+.}-{3:3}, at: perf_kprobe_destroy+0x27/0x200
2 locks held by syz-executor.6/4996:
#0: ffffffff85668288 (event_mutex){+.+.}-{3:3}, at: perf_kprobe_destroy+0x27/0x200
#1: ffffffff85655028 (kprobe_mutex){+.+.}-{3:3}, at: disable_kprobe+0x21/0x70
1 lock held by syz-executor.5/4998:
#0: ffffffff85668288 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0
2 locks held by syz-executor.3/5042:
#0: ffffffff87af6d70 (&pmus_srcu){.+.+}-{0:0}, at: perf_event_alloc.part.0+0xcd2/0x3a70
#1: ffffffff85668288 (event_mutex){+.+.}-{3:3}, at: perf_trace_init+0x4d/0x2f0
2 locks held by syz-executor.4/5044:
#0: ffffffff87af6d70 (&pmus_srcu){.+.+}-{0:0}, at: perf_event_alloc.part.0+0xcd2/0x3a70
#1: ffffffff85668288 (event_mutex){+.+.}-{3:3}, at: perf_trace_init+0x4d/0x2f0
2 locks held by syz-executor.7/6449:
#0: ffffffff87af6d70 (&pmus_srcu){.+.+}-{0:0}, at: perf_event_alloc.part.0+0xcd2/0x3a70
#1: ffffffff85668288 (event_mutex){+.+.}-{3:3}, at: perf_trace_init+0x4d/0x2f0
2 locks held by syz-executor.7/6460:
#0: ffffffff87af6d70 (&pmus_srcu){.+.+}-{0:0}, at: perf_event_alloc.part.0+0xcd2/0x3a70
#1: ffffffff85655028 (kprobe_mutex){+.+.}-{3:3}, at: register_kprobe+0x131/0x15c0
2 locks held by syz-executor.2/6893:
#0: ffffffff87af6d70 (&pmus_srcu){.+.+}-{0:0}, at: perf_event_alloc.part.0+0xcd2/0x3a70
#1: ffffffff85668288 (event_mutex){+.+.}-{3:3}, at: perf_trace_init+0x4d/0x2f0
2 locks held by syz-executor.0/6904:
#0: ffffffff87af6d70 (&pmus_srcu){.+.+}-{0:0}, at: perf_event_alloc.part.0+0xcd2/0x3a70
#1: ffffffff85668288 (event_mutex){+.+.}-{3:3}, at: perf_trace_init+0x4d/0x2f0
2 locks held by syz-executor.0/6908:
#0: ffffffff87af6d70 (&pmus_srcu){.+.+}-{0:0}, at: perf_event_alloc.part.0+0xcd2/0x3a70
#1: ffffffff85655028 (kprobe_mutex){+.+.}-{3:3}, at: register_kprobe+0x131/0x15c0
2 locks held by syz-executor.6/6914:
#0: ffffffff87af6d70 (&pmus_srcu){.+.+}-{0:0}, at: perf_event_alloc.part.0+0xcd2/0x3a70
#1: ffffffff85668288 (event_mutex){+.+.}-{3:3}, at: perf_trace_init+0x4d/0x2f0
2 locks held by syz-executor.6/6917:
#0: ffffffff87af6d70 (&pmus_srcu){.+.+}-{0:0}, at: perf_event_alloc.part.0+0xcd2/0x3a70
#1: ffffffff85655028 (kprobe_mutex){+.+.}-{3:3}, at: register_kprobe+0x131/0x15c0
=============================================
tasks_rcu_exit_srcu_stall: rcu_tasks grace period number 125 (since boot) gp_state: RTGS_POST_SCAN_TASKLIST is 164041 jiffies old.
Please check any exiting tasks stuck between calls to exit_tasks_rcu_start() and exit_tasks_rcu_finish()