tasks_rcu_exit_srcu_stall: rcu_tasks grace period number 21 (since boot) gp_state: RTGS_POST_SCAN_TASKLIST is 153398 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 6.4.0-rc5-next-20230609 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:rcu_tasks_kthre state:D stack:29064 pid:12 ppid:2 flags:0x00004000
Call Trace:
__schedule+0x9a9/0x2b10
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+0xa69/0xe10
rcu_tasks_kthread+0x1a7/0x240
kthread+0x33f/0x440
ret_from_fork+0x2c/0x50
INFO: task kworker/1:0:20 blocked for more than 143 seconds.
Not tainted 6.4.0-rc5-next-20230609 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:0 state:D stack:28432 pid:20 ppid:2 flags:0x00004000
Workqueue: events kprobe_optimizer
Call Trace:
__schedule+0x9a9/0x2b10
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+0x2c/0x50
INFO: task syz-executor.4:3994 blocked for more than 143 seconds.
Not tainted 6.4.0-rc5-next-20230609 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:26272 pid:3994 ppid:274 flags:0x00004006
Call Trace:
__schedule+0x9a9/0x2b10
schedule+0xdb/0x1a0
schedule_preempt_disabled+0x10/0x20
__mutex_lock+0xc10/0x1a30
unregister_kprobe+0x22/0xc0
__unregister_trace_kprobe+0x1a2/0x210
destroy_local_trace_kprobe+0xda/0x180
_free_event+0x207/0x1150
perf_event_release_kernel+0x5b8/0x7a0
perf_release+0x37/0x50
__fput+0x26f/0xa50
task_work_run+0x174/0x280
do_exit+0xaba/0x2780
do_group_exit+0xd4/0x2a0
get_signal+0x263f/0x26c0
arch_do_signal_or_restart+0x79/0x590
exit_to_user_mode_prepare+0xeb/0x180
syscall_exit_to_user_mode+0x1d/0x50
ret_from_fork+0x1f/0x50
RIP: 0033:0x7f806d36eb19
RSP: 002b:00007f806a8c3188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3
RAX: 0000000000000000 RBX: 00007f806d482020 RCX: 00007f806d36eb19
RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020000380
RBP: 00007f806d3c8f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe92af0f7f R14: 00007f806a8c3300 R15: 0000000000022000
INFO: task syz-executor.2:4061 blocked for more than 143 seconds.
Not tainted 6.4.0-rc5-next-20230609 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:26992 pid:4061 ppid:268 flags:0x00000004
Call Trace:
__schedule+0x9a9/0x2b10
schedule+0xdb/0x1a0
schedule_preempt_disabled+0x10/0x20
__mutex_lock+0xc10/0x1a30
perf_trace_destroy+0x27/0x1c0
_free_event+0x207/0x1150
perf_event_release_kernel+0x5b8/0x7a0
perf_release+0x37/0x50
__fput+0x26f/0xa50
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: 0033:0x7fa0d454472b
RSP: 002b:00007ffe2736e3d0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007fa0d454472b
RDX: 0000000000000000 RSI: 00007fa0d4110a28 RDI: 0000000000000003
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000001b2bf2f868
R10: 00000000000013b3 R11: 0000000000000293 R12: 00007fa0d46a5b60
R13: 00007fa0d46a5b60 R14: 00007fa0d46a4f60 R15: 00000000000236bc
INFO: task syz-executor.1:4067 blocked for more than 143 seconds.
Not tainted 6.4.0-rc5-next-20230609 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:26992 pid:4067 ppid:270 flags:0x00000004
Call Trace:
__schedule+0x9a9/0x2b10
schedule+0xdb/0x1a0
schedule_preempt_disabled+0x10/0x20
__mutex_lock+0xc10/0x1a30
arch_jump_label_transform_queue+0x5c/0x110
__jump_label_update+0x12e/0x410
jump_label_update+0x325/0x400
static_key_disable_cpuslocked+0x156/0x1b0
static_key_disable+0x1a/0x20
tracepoint_probe_unregister+0x65d/0xc60
trace_event_reg+0x185/0x350
perf_trace_event_unreg.isra.0+0xae/0x1e0
perf_trace_destroy+0xc8/0x1c0
_free_event+0x207/0x1150
perf_event_release_kernel+0x5b8/0x7a0
perf_release+0x37/0x50
__fput+0x26f/0xa50
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: 0033:0x7fd88e71572b
RSP: 002b:00007ffeb3c86100 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007fd88e71572b
RDX: 0000000000000000 RSI: 00007fd88e2df518 RDI: 0000000000000003
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000001b2c2293e0
R10: 00000000000013b3 R11: 0000000000000293 R12: 00007fd88e876b60
R13: 00007fd88e876b60 R14: 00007fd88e875f60 R15: 00000000000236d1
INFO: task syz-executor.6:4075 blocked for more than 143 seconds.
Not tainted 6.4.0-rc5-next-20230609 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.6 state:D stack:26992 pid:4075 ppid:273 flags:0x00000004
Call Trace:
__schedule+0x9a9/0x2b10
schedule+0xdb/0x1a0
schedule_preempt_disabled+0x10/0x20
__mutex_lock+0xc10/0x1a30
perf_trace_destroy+0x27/0x1c0
_free_event+0x207/0x1150
perf_event_release_kernel+0x5b8/0x7a0
perf_release+0x37/0x50
__fput+0x26f/0xa50
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: 0033:0x7f0f9d6ac72b
RSP: 002b:00007ffc02ad19f0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f0f9d6ac72b
RDX: 00007f0f9d8142b8 RSI: 00007f0f9d4758b8 RDI: 0000000000000003
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000001b2c63072c
R10: 0000000000000a9e R11: 0000000000000293 R12: 00000000000238d2
R13: 00000000000003e8 R14: 00007f0f9d80cf60 R15: 000000000002378d
INFO: task syz-executor.5:4084 blocked for more than 143 seconds.
Not tainted 6.4.0-rc5-next-20230609 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:26992 pid:4084 ppid:269 flags:0x00000004
Call Trace:
__schedule+0x9a9/0x2b10
schedule+0xdb/0x1a0
schedule_preempt_disabled+0x10/0x20
__mutex_lock+0xc10/0x1a30
perf_trace_destroy+0x27/0x1c0
_free_event+0x207/0x1150
perf_event_release_kernel+0x5b8/0x7a0
perf_release+0x37/0x50
__fput+0x26f/0xa50
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: 0033:0x7f3e531e472b
RSP: 002b:00007fffb3f19c80 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f3e531e472b
RDX: 00007f3e5334cca8 RSI: 0000000000000081 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 00007f3e5334cca8
R13: 00007fffb3f19da0 R14: 00007f3e53344f60 R15: 000000000002375b
INFO: task syz-executor.3:4093 blocked for more than 143 seconds.
Not tainted 6.4.0-rc5-next-20230609 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:27040 pid:4093 ppid:1345 flags:0x00000004
Call Trace:
__schedule+0x9a9/0x2b10
schedule+0xdb/0x1a0
schedule_preempt_disabled+0x10/0x20
__mutex_lock+0xc10/0x1a30
perf_trace_init+0x4d/0x2f0
perf_tp_event_init+0xa6/0x120
perf_try_init_event+0x130/0x570
perf_event_alloc.part.0+0xf84/0x3a30
__do_sys_perf_event_open+0x4d9/0x2a60
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x6e/0xd8
RIP: 0033:0x7f3a3bf9eb19
RSP: 002b:00007f3a39514188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f3a3c0b1f60 RCX: 00007f3a3bf9eb19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000080
RBP: 00007f3a3bff8f6d R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe23a703bf R14: 00007f3a39514300 R15: 0000000000022000
INFO: task syz-executor.3:4145 blocked for more than 143 seconds.
Not tainted 6.4.0-rc5-next-20230609 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:29648 pid:4145 ppid:1345 flags:0x00000004
Call Trace:
__schedule+0x9a9/0x2b10
schedule+0xdb/0x1a0
schedule_preempt_disabled+0x10/0x20
__mutex_lock+0xc10/0x1a30
perf_trace_init+0x4d/0x2f0
perf_tp_event_init+0xa6/0x120
perf_try_init_event+0x130/0x570
perf_event_alloc.part.0+0xf84/0x3a30
__do_sys_perf_event_open+0x4d9/0x2a60
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x6e/0xd8
RIP: 0033:0x7f3a3bf9eb19
RSP: 002b:00007f3a3944e188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f3a3c0b23e0 RCX: 00007f3a3bf9eb19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000080
RBP: 00007f3a3bff8f6d R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe23a703bf R14: 00007f3a3944e300 R15: 0000000000022000
INFO: task syz-executor.0:4109 blocked for more than 143 seconds.
Not tainted 6.4.0-rc5-next-20230609 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:26992 pid:4109 ppid:267 flags:0x00004004
Call Trace:
__schedule+0x9a9/0x2b10
schedule+0xdb/0x1a0
do_exit+0x3df/0x2780
do_group_exit+0xd4/0x2a0
get_signal+0x263f/0x26c0
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: 0033:0x7f802aec18e1
RSP: 002b:00007ffc77a67e10 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6
RAX: fffffffffffffdfc RBX: 0000000000023b95 RCX: 00007f802aec18e1
RDX: 00007ffc77a67e50 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000001 R08: 0000000000000000 R09: 00007ffc77bb1080
R10: 0000000000000000 R11: 0000000000000293 R12: 00007f802afaff60
R13: 00007f802afb0b60 R14: 00007f802afaff60 R15: 0000000000023854
Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8560a6f0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xe10
5 locks held by kworker/1:0/20:
#0: ffff888008468d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x99d/0x1770
#1: ffff888008e67db0 ((optimizing_work).work){+.+.}-{0:0}, at: process_one_work+0x9d0/0x1770
#2: ffffffff856527e8 (kprobe_mutex){+.+.}-{3:3}, at: kprobe_optimizer+0x25/0x7e0
#3: ffffffff854e2cb0 (cpu_hotplug_lock){++++}-{0:0}, at: kprobe_optimizer+0x2a/0x7e0
#4: ffffffff854f6c28 (text_mutex){+.+.}-{3:3}, at: kprobe_optimizer+0x38/0x7e0
1 lock held by khungtaskd/25:
#0: ffffffff8560b2c0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x340
1 lock held by in:imklog/186:
#0: ffff88800e97dc48 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xdf/0x100
1 lock held by syz-executor.4/3994:
#0: ffffffff856527e8 (kprobe_mutex){+.+.}-{3:3}, at: unregister_kprobe+0x22/0xc0
1 lock held by syz-executor.2/4061:
#0: ffffffff85665708 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0
5 locks held by syz-executor.1/4067:
#0: ffffffff85665708 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0
#1: ffffffff85657848 (tracepoints_mutex){+.+.}-{3:3}, at: tracepoint_probe_unregister+0x31/0xc60
#2: ffffffff854e2cb0 (cpu_hotplug_lock){++++}-{0:0}, at: static_key_disable+0x12/0x20
#3: ffffffff85687908 (jump_label_mutex){+.+.}-{3:3}, at: static_key_disable_cpuslocked+0x10c/0x1b0
#4: ffffffff854f6c28 (text_mutex){+.+.}-{3:3}, at: arch_jump_label_transform_queue+0x5c/0x110
1 lock held by syz-executor.6/4075:
#0: ffffffff85665708 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0
1 lock held by syz-executor.5/4084:
#0: ffffffff85665708 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0
2 locks held by syz-executor.3/4093:
#0: ffffffff87b6c530 (&pmus_srcu){.+.+}-{0:0}, at: perf_event_alloc.part.0+0xcd2/0x3a30
#1: ffffffff85665708 (event_mutex){+.+.}-{3:3}, at: perf_trace_init+0x4d/0x2f0
2 locks held by syz-executor.3/4145:
#0: ffffffff87b6c530 (&pmus_srcu){.+.+}-{0:0}, at: perf_event_alloc.part.0+0xcd2/0x3a30
#1: ffffffff85665708 (event_mutex){+.+.}-{3:3}, at: perf_trace_init+0x4d/0x2f0
2 locks held by syz-executor.0/4110:
#0: ffffffff87b6c530 (&pmus_srcu){.+.+}-{0:0}, at: perf_event_alloc.part.0+0xcd2/0x3a30
#1: ffffffff85665708 (event_mutex){+.+.}-{3:3}, at: perf_trace_init+0x4d/0x2f0
2 locks held by syz-executor.7/4129:
#0: ffffffff87b6c530 (&pmus_srcu){.+.+}-{0:0}, at: perf_event_alloc.part.0+0xcd2/0x3a30
#1: ffffffff85665708 (event_mutex){+.+.}-{3:3}, at: perf_trace_init+0x4d/0x2f0
2 locks held by syz-executor.7/4134:
#0: ffffffff87b6c530 (&pmus_srcu){.+.+}-{0:0}, at: perf_event_alloc.part.0+0xcd2/0x3a30
#1: ffffffff85665708 (event_mutex){+.+.}-{3:3}, at: perf_trace_init+0x4d/0x2f0
2 locks held by syz-executor.4/4608:
#0: ffffffff87b6c530 (&pmus_srcu){.+.+}-{0:0}, at: perf_event_alloc.part.0+0xcd2/0x3a30
#1: ffffffff85665708 (event_mutex){+.+.}-{3:3}, at: perf_trace_init+0x4d/0x2f0
=============================================
tasks_rcu_exit_srcu_stall: rcu_tasks grace period number 21 (since boot) gp_state: RTGS_POST_SCAN_TASKLIST is 163638 jiffies old.
Please check any exiting tasks stuck between calls to exit_tasks_rcu_start() and exit_tasks_rcu_finish()