tasks_rcu_exit_srcu_stall: rcu_tasks grace period number 125 (since boot) gp_state: RTGS_POST_SCAN_TASKLIST is 143390 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-rc2-next-20230721 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:rcu_tasks_kthre state:D stack:28416 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+0xa69/0xe10
rcu_tasks_kthread+0x1a7/0x240
kthread+0x33f/0x440
ret_from_fork+0x2f/0x70
ret_from_fork_asm+0x1b/0x30
RIP: 0000:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
INFO: task kworker/1:1:29 blocked for more than 143 seconds.
Not tainted 6.5.0-rc2-next-20230721 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:1 state:D stack:26400 pid:29 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
RIP: 0000:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
INFO: task syz-executor.5:6077 blocked for more than 143 seconds.
Not tainted 6.5.0-rc2-next-20230721 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:28496 pid:6077 ppid:275 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+0x406/0xad0
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: 0033:0x7f88acf15b19
RSP: 002b:00007f88aa46a218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f88ad029028 RCX: 00007f88acf15b19
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f88ad029028
RBP: 00007f88ad029020 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f88ad02902c
R13: 00007fff407b060f R14: 00007f88aa46a300 R15: 0000000000022000
INFO: task syz-executor.5:6094 blocked for more than 143 seconds.
Not tainted 6.5.0-rc2-next-20230721 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:26240 pid:6094 ppid:275 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+0x406/0xad0
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: 0033:0x7f88acf15b19
RSP: 002b:00007f88aa449218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f88ad0290e8 RCX: 00007f88acf15b19
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f88ad0290e8
RBP: 00007f88ad0290e0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f88ad0290ec
R13: 00007fff407b060f R14: 00007f88aa449300 R15: 0000000000022000
INFO: task syz-executor.0:6104 blocked for more than 143 seconds.
Not tainted 6.5.0-rc2-next-20230721 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:26984 pid:6104 ppid:269 flags:0x00000004
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+0x406/0xad0
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: 0033:0x7fcc3eef472b
RSP: 002b:00007ffcab3b8690 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000008 RCX: 00007fcc3eef472b
RDX: 0000000000000000 RSI: 00007fcc3ee3a9e0 RDI: 0000000000000007
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000001b2c128ae8
R10: 0000000000001c8f R11: 0000000000000293 R12: 00007fcc3f055b60
R13: 00007fcc3f055b60 R14: 00007fcc3f054f60 R15: 000000000009281a
INFO: task syz-executor.6:6131 blocked for more than 143 seconds.
Not tainted 6.5.0-rc2-next-20230721 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.6 state:D stack:28144 pid:6131 ppid:276 flags:0x00000004
Call Trace:
__schedule+0x9a9/0x2b00
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+0xf84/0x3a70
__do_sys_perf_event_open+0x4db/0x2ae0
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x6e/0xd8
RIP: 0033:0x7f89a42a7b19
RSP: 002b:00007f89a181d188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f89a43baf60 RCX: 00007f89a42a7b19
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000000020000080
RBP: 00007f89a4301f6d R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdb09a928f R14: 00007f89a181d300 R15: 0000000000022000
INFO: task syz-executor.6:6139 blocked for more than 143 seconds.
Not tainted 6.5.0-rc2-next-20230721 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.6 state:D stack:28888 pid:6139 ppid:276 flags:0x00004004
Call Trace:
__schedule+0x9a9/0x2b00
schedule+0xdb/0x1a0
schedule_preempt_disabled+0x10/0x20
__mutex_lock+0xc10/0x1a30
register_kretprobe+0x164/0x900
__register_trace_kprobe+0x23a/0x2d0
create_local_trace_kprobe+0x1ea/0x3d0
perf_kprobe_init+0x119/0x210
perf_kprobe_event_init+0xfc/0x1d0
perf_try_init_event+0x130/0x570
perf_event_alloc.part.0+0xf84/0x3a70
__do_sys_perf_event_open+0x4db/0x2ae0
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x6e/0xd8
RIP: 0033:0x7f89a42a7b19
RSP: 002b:00007f89a17fc188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f89a43bb020 RCX: 00007f89a42a7b19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000280
RBP: 00007f89a4301f6d R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdb09a928f R14: 00007f89a17fc300 R15: 0000000000022000
INFO: task syz-executor.4:6137 blocked for more than 143 seconds.
Not tainted 6.5.0-rc2-next-20230721 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:29648 pid:6137 ppid:927 flags:0x00000004
Call Trace:
__schedule+0x9a9/0x2b00
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+0xf84/0x3a70
__do_sys_perf_event_open+0x4db/0x2ae0
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x6e/0xd8
RIP: 0033:0x7ffa81c84b19
RSP: 002b:00007ffa7f1fa188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007ffa81d97f60 RCX: 00007ffa81c84b19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000080
RBP: 00007ffa81cdef6d R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffced14796f R14: 00007ffa7f1fa300 R15: 0000000000022000
INFO: task syz-executor.4:6141 blocked for more than 143 seconds.
Not tainted 6.5.0-rc2-next-20230721 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:29576 pid:6141 ppid:927 flags:0x00000004
Call Trace:
__schedule+0x9a9/0x2b00
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+0xf84/0x3a70
__do_sys_perf_event_open+0x4db/0x2ae0
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x6e/0xd8
RIP: 0033:0x7ffa81c84b19
RSP: 002b:00007ffa7f1d9188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007ffa81d98020 RCX: 00007ffa81c84b19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000080
RBP: 00007ffa81cdef6d R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffced14796f R14: 00007ffa7f1d9300 R15: 0000000000022000
INFO: task syz-executor.3:6138 blocked for more than 143 seconds.
Not tainted 6.5.0-rc2-next-20230721 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:29056 pid:6138 ppid:272 flags:0x00000004
Call Trace:
__schedule+0x9a9/0x2b00
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+0xf84/0x3a70
__do_sys_perf_event_open+0x4db/0x2ae0
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x6e/0xd8
RIP: 0033:0x7f7b192b8b19
RSP: 002b:00007f7b1682e188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f7b193cbf60 RCX: 00007f7b192b8b19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000080
RBP: 00007f7b19312f6d R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe8ca205af R14: 00007f7b1682e300 R15: 0000000000022000
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: ffffffff8560b6d0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xe10
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/1:1/29:
#0: ffff888008468d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x99d/0x1770
#1: ffff888008f0fd90 ((optimizing_work).work){+.+.}-{0:0}, at: process_one_work+0x9d0/0x1770
#2: ffffffff85654f68 (kprobe_mutex){+.+.}-{3:3}, at: kprobe_optimizer+0x25/0x7e0
#3: ffffffff854e2f90 (cpu_hotplug_lock){++++}-{0:0}, at: kprobe_optimizer+0x2a/0x7e0
#4: ffffffff854f7568 (text_mutex){+.+.}-{3:3}, at: kprobe_optimizer+0x38/0x7e0
2 locks held by in:imklog/167:
#0: ffff88800de2d9c8 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xdf/0x100
#1: ffff8880166581a0 (&mm->mmap_lock){++++}-{3:3}, at: kmem_cache_alloc+0x47/0x390
1 lock held by syz-executor.6/4146:
#0: ffffffff856680a8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0
1 lock held by syz-executor.6/4941:
#0: ffffffff856680a8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0
1 lock held by syz-executor.0/5737:
#0: ffffffff856680a8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0
1 lock held by syz-executor.0/5748:
#0: ffffffff856680a8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0
1 lock held by syz-executor.5/6077:
#0: ffffffff856680a8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0
1 lock held by syz-executor.5/6094:
#0: ffffffff856680a8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0
2 locks held by syz-executor.0/6104:
#0: ffffffff856680a8 (event_mutex){+.+.}-{3:3}, at: perf_kprobe_destroy+0x27/0x200
#1: ffffffff85654f68 (kprobe_mutex){+.+.}-{3:3}, at: disable_kprobe+0x21/0x70
2 locks held by syz-executor.6/6131:
#0: ffffffff87b92d70 (&pmus_srcu){.+.+}-{0:0}, at: perf_event_alloc.part.0+0xcd2/0x3a70
#1: ffffffff856680a8 (event_mutex){+.+.}-{3:3}, at: perf_trace_init+0x4d/0x2f0
2 locks held by syz-executor.6/6139:
#0: ffffffff87b92d70 (&pmus_srcu){.+.+}-{0:0}, at: perf_event_alloc.part.0+0xcd2/0x3a70
#1: ffffffff85654f68 (kprobe_mutex){+.+.}-{3:3}, at: register_kretprobe+0x164/0x900
2 locks held by syz-executor.4/6137:
#0: ffffffff87b92d70 (&pmus_srcu){.+.+}-{0:0}, at: perf_event_alloc.part.0+0xcd2/0x3a70
#1: ffffffff856680a8 (event_mutex){+.+.}-{3:3}, at: perf_trace_init+0x4d/0x2f0
2 locks held by syz-executor.4/6141:
#0: ffffffff87b92d70 (&pmus_srcu){.+.+}-{0:0}, at: perf_event_alloc.part.0+0xcd2/0x3a70
#1: ffffffff856680a8 (event_mutex){+.+.}-{3:3}, at: perf_trace_init+0x4d/0x2f0
2 locks held by syz-executor.3/6138:
#0: ffffffff87b92d70 (&pmus_srcu){.+.+}-{0:0}, at: perf_event_alloc.part.0+0xcd2/0x3a70
#1: ffffffff856680a8 (event_mutex){+.+.}-{3:3}, at: perf_trace_init+0x4d/0x2f0
2 locks held by syz-executor.3/6147:
#0: ffffffff87b92d70 (&pmus_srcu){.+.+}-{0:0}, at: perf_event_alloc.part.0+0xcd2/0x3a70
#1: ffffffff856680a8 (event_mutex){+.+.}-{3:3}, at: perf_trace_init+0x4d/0x2f0
=============================================
tasks_rcu_exit_srcu_stall: rcu_tasks grace period number 125 (since boot) gp_state: RTGS_POST_SCAN_TASKLIST is 153629 jiffies old.
Please check any exiting tasks stuck between calls to exit_tasks_rcu_start() and exit_tasks_rcu_finish()