tasks_rcu_exit_srcu_stall: rcu_tasks grace period number 21 (since boot) gp_state: RTGS_POST_SCAN_TASKLIST is 153475 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-rc6-next-20230616 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:rcu_tasks_kthre state:D stack:29072 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/1:1:28 blocked for more than 143 seconds.
Not tainted 6.4.0-rc6-next-20230616 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:1 state:D stack:26792 pid:28 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.7:4167 blocked for more than 143 seconds.
Not tainted 6.4.0-rc6-next-20230616 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.7 state:D stack:27360 pid:4167 ppid:752 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+0x284/0xac0
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: 0033:0x7f81d1ba4b19
RSP: 002b:00007f81cf11a218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f81d1cb7f68 RCX: 00007f81d1ba4b19
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f81d1cb7f68
RBP: 00007f81d1cb7f60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f81d1cb7f6c
R13: 00007fffdc74860f R14: 00007f81cf11a300 R15: 0000000000022000
INFO: task syz-executor.5:4856 blocked for more than 143 seconds.
Not tainted 6.4.0-rc6-next-20230616 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:26688 pid:4856 ppid:4349 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: 0033:0x7ff0e4734b19
RSP: 002b:00007ff0e1caa188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007ff0e4847f60 RCX: 00007ff0e4734b19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000080
RBP: 00007ff0e478ef6d R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffeeb362bcf R14: 00007ff0e1caa300 R15: 0000000000022000
INFO: task syz-executor.2:4845 blocked for more than 143 seconds.
Not tainted 6.4.0-rc6-next-20230616 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:26992 pid:4845 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+0x284/0xac0
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: 0033:0x7f838432272b
RSP: 002b:00007ffe2cb88790 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000006 RCX: 00007f838432272b
RDX: 00007f8384489b28 RSI: ffffffff813907ca RDI: 0000000000000005
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000001b2c22898c
R10: 00000000000019ab R11: 0000000000000293 R12: 000000000003c162
R13: 00000000000003e8 R14: 00007f8384482f60 R15: 000000000003c0c4
INFO: task syz-executor.0:4857 blocked for more than 143 seconds.
Not tainted 6.4.0-rc6-next-20230616 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:28080 pid:4857 ppid:821 flags:0x00004006
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+0x284/0xac0
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: 0033:0x7fa35e8f1b19
RSP: 002b:00007fa35be67188 EFLAGS: 00000246 ORIG_RAX: 0000000000000021
RAX: 0000000000000003 RBX: 00007fa35ea04f60 RCX: 00007fa35e8f1b19
RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000005
RBP: 00007fa35e94bf6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcb235461f R14: 00007fa35be67300 R15: 0000000000022000
INFO: task syz-executor.6:4850 blocked for more than 143 seconds.
Not tainted 6.4.0-rc6-next-20230616 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.6 state:D stack:26992 pid:4850 ppid:820 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+0x284/0xac0
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: 0033:0x7f11d8c0972b
RSP: 002b:00007ffcf2f8e3f0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f11d8c0972b
RDX: 0000000000000000 RSI: 00007f11d8ae6c78 RDI: 0000000000000003
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000001b2c926500
R10: 00000000000019ab R11: 0000000000000293 R12: 00007f11d8d6ab60
R13: 00007f11d8d6ab60 R14: 00007f11d8d69f60 R15: 000000000003c0cc
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8560a7f0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xe10
1 lock held by ksoftirqd/0/13:
1 lock held by khungtaskd/25:
#0: ffffffff8560b3c0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x340
5 locks held by kworker/1:1/28:
#0: ffff888008468d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x99d/0x1770
#1: ffff888008f4fdb0 ((optimizing_work).work){+.+.}-{0:0}, at: process_one_work+0x9d0/0x1770
#2: ffffffff856528e8 (kprobe_mutex){+.+.}-{3:3}, at: kprobe_optimizer+0x25/0x7e0
#3: ffffffff854e2cb0 (cpu_hotplug_lock){++++}-{0:0}, at: kprobe_optimizer+0x2a/0x7e0
#4: ffffffff854f6c68 (text_mutex){+.+.}-{3:3}, at: kprobe_optimizer+0x38/0x7e0
2 locks held by systemd-journal/87:
1 lock held by in:imklog/163:
#0: ffff88800d826d48 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xdf/0x100
5 locks held by syz-executor.7/4167:
#0: ffffffff85665808 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0
#1: ffffffff85657948 (tracepoints_mutex){+.+.}-{3:3}, at: tracepoint_probe_unregister+0x31/0xc60
#2: ffffffff854e2cb0 (cpu_hotplug_lock){++++}-{0:0}, at: static_key_disable+0x12/0x20
#3: ffffffff856879a8 (jump_label_mutex){+.+.}-{3:3}, at: static_key_disable_cpuslocked+0x10c/0x1b0
#4: ffffffff854f6c68 (text_mutex){+.+.}-{3:3}, at: arch_jump_label_transform_queue+0x5c/0x110
2 locks held by syz-executor.5/4856:
#0: ffffffff87b72570 (&pmus_srcu){.+.+}-{0:0}, at: perf_event_alloc.part.0+0xcd2/0x3a30
#1: ffffffff85665808 (event_mutex){+.+.}-{3:3}, at: perf_trace_init+0x4d/0x2f0
1 lock held by syz-executor.2/4845:
#0: ffffffff85665808 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0
1 lock held by syz-executor.0/4857:
#0: ffffffff856528e8 (kprobe_mutex){+.+.}-{3:3}, at: unregister_kretprobes.part.0+0x23/0x210
1 lock held by syz-executor.6/4850:
#0: ffffffff85665808 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0
=============================================
tasks_rcu_exit_srcu_stall: rcu_tasks grace period number 21 (since boot) gp_state: RTGS_POST_SCAN_TASKLIST is 163715 jiffies old.
Please check any exiting tasks stuck between calls to exit_tasks_rcu_start() and exit_tasks_rcu_finish()