tasks_rcu_exit_srcu_stall: rcu_tasks grace period number 505 (since boot) gp_state: RTGS_POST_SCAN_TASKLIST is 153729 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.
Tainted: G L 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:28448 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 syz-executor.3:8605 blocked for more than 143 seconds.
Tainted: G L 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:26240 pid:8605 ppid:278 flags:0x00004006
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
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
do_syscall_64+0x4c/0x90
entry_SYSCALL_64_after_hwframe+0x6e/0xd8
RIP: 0033:0x7f1125f29b19
RSP: 002b:00007f112349f218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f112603cf68 RCX: 00007f1125f29b19
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f112603cf68
RBP: 00007f112603cf60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f112603cf6c
R13: 00007ffd5a50061f R14: 00007f112349f300 R15: 0000000000022000
INFO: task kworker/0:1:10076 blocked for more than 143 seconds.
Tainted: G L 6.4.0-rc5-next-20230609 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:1 state:D stack:26976 pid:10076 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.6:12040 blocked for more than 143 seconds.
Tainted: G L 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:28248 pid:12040 ppid:283 flags:0x00004002
Call Trace:
__schedule+0x9a9/0x2b10
schedule+0xdb/0x1a0
schedule_preempt_disabled+0x10/0x20
__mutex_lock+0xc10/0x1a30
unregister_kretprobes.part.0+0x23/0x210
unregister_kretprobe+0x6d/0xa0
__unregister_trace_kprobe+0xaf/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
do_syscall_64+0x4c/0x90
entry_SYSCALL_64_after_hwframe+0x6e/0xd8
RIP: 0033:0x7f0e3678ab19
RSP: 002b:00007f0e33d00188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: 0000000000000003 RBX: 00007f0e3689df60 RCX: 00007f0e3678ab19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000280
RBP: 00007f0e367e4f6d R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd6df6603f R14: 00007f0e33d00300 R15: 0000000000022000
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
1 lock held by khungtaskd/27:
#0: ffffffff8560b2c0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x340
1 lock held by systemd-journal/88:
1 lock held by in:imklog/164:
5 locks held by syz-executor.3/8605:
#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.1/8748:
#0: ffffffff85665708 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0
1 lock held by syz-executor.4/8765:
#0: ffffffff85665708 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0
1 lock held by syz-executor.1/8801:
#0: ffffffff85665708 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0
5 locks held by kworker/0:1/10076:
#0: ffff888008468d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x99d/0x1770
#1: ffff88804272fdb0 ((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 syz-executor.4/10339:
#0: ffffffff85665708 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0
1 lock held by syz-executor.4/10341:
#0: ffffffff85665708 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0
1 lock held by syz-executor.4/10492:
#0: ffffffff85665708 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0
1 lock held by syz-executor.4/10720:
#0: ffffffff85665708 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0
1 lock held by syz-executor.6/12040:
#0: ffffffff856527e8 (kprobe_mutex){+.+.}-{3:3}, at: unregister_kretprobes.part.0+0x23/0x210
2 locks held by syz-executor.1/12073:
#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.4/12080:
#0: ffffffff87b6c530 (&pmus_srcu){.+.+}-{0:0}, at: perf_event_alloc.part.0+0xcd2/0x3a30
#1: ffffffff856527e8 (kprobe_mutex){+.+.}-{3:3}, at: register_kretprobe+0x164/0x900
2 locks held by syz-executor.3/13001:
#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.3/13005:
#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.6/13016:
#0: ffffffff87b6c530 (&pmus_srcu){.+.+}-{0:0}, at: perf_event_alloc.part.0+0xcd2/0x3a30
#1: ffffffff856527e8 (kprobe_mutex){+.+.}-{3:3}, at: register_kretprobe+0x164/0x900
2 locks held by syz-executor.6/13017:
#0: ffffffff87b6c530 (&pmus_srcu){.+.+}-{0:0}, at: perf_event_alloc.part.0+0xcd2/0x3a30
#1: ffffffff856527e8 (kprobe_mutex){+.+.}-{3:3}, at: register_kretprobe+0x164/0x900
=============================================
tasks_rcu_exit_srcu_stall: rcu_tasks grace period number 505 (since boot) gp_state: RTGS_POST_SCAN_TASKLIST is 163969 jiffies old.
Please check any exiting tasks stuck between calls to exit_tasks_rcu_start() and exit_tasks_rcu_finish()