tasks_rcu_exit_srcu_stall: rcu_tasks grace period number 45 (since boot) gp_state: RTGS_POST_SCAN_TASKLIST is 143396 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-rc3-next-20230725 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:rcu_tasks_kthre state:D stack:28960 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 INFO: task kworker/1:1:30 blocked for more than 143 seconds. Not tainted 6.5.0-rc3-next-20230725 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:1 state:D stack:25736 pid:30 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.2:4071 blocked for more than 143 seconds. Not tainted 6.5.0-rc3-next-20230725 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:26632 pid:4071 ppid:269 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: 0033:0x7fd9c0e33b19 RSP: 002b:00007fd9be3a9218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007fd9c0f46f68 RCX: 00007fd9c0e33b19 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fd9c0f46f68 RBP: 00007fd9c0f46f60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd9c0f46f6c R13: 00007ffe14bf253f R14: 00007fd9be3a9300 R15: 0000000000022000 INFO: task syz-executor.2:4135 blocked for more than 143 seconds. Not tainted 6.5.0-rc3-next-20230725 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:26240 pid:4135 ppid:269 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: 0033:0x7fd9c0e33b19 RSP: 002b:00007fd9be3a9218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007fd9c0f46f68 RCX: 00007fd9c0e33b19 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fd9c0f46f68 RBP: 00007fd9c0f46f60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd9c0f46f6c R13: 00007ffe14bf253f R14: 00007fd9be3a9300 R15: 0000000000022000 INFO: task syz-executor.2:4153 blocked for more than 143 seconds. Not tainted 6.5.0-rc3-next-20230725 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:27104 pid:4153 ppid:269 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: 0033:0x7fd9c0e33b19 RSP: 002b:00007fd9be3a9218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007fd9c0f46f68 RCX: 00007fd9c0e33b19 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fd9c0f46f68 RBP: 00007fd9c0f46f60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd9c0f46f6c R13: 00007ffe14bf253f R14: 00007fd9be3a9300 R15: 0000000000022000 INFO: task syz-executor.2:4175 blocked for more than 143 seconds. Not tainted 6.5.0-rc3-next-20230725 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:27104 pid:4175 ppid:269 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: 0033:0x7fd9c0e33b19 RSP: 002b:00007fd9be3a9218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007fd9c0f46f68 RCX: 00007fd9c0e33b19 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fd9c0f46f68 RBP: 00007fd9c0f46f60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd9c0f46f6c R13: 00007ffe14bf253f R14: 00007fd9be3a9300 R15: 0000000000022000 INFO: task syz-executor.2:7406 blocked for more than 143 seconds. Not tainted 6.5.0-rc3-next-20230725 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:27344 pid:7406 ppid:269 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: 0033:0x7fd9c0e33b19 RSP: 002b:00007fd9be3a9218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007fd9c0f46f68 RCX: 00007fd9c0e33b19 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fd9c0f46f68 RBP: 00007fd9c0f46f60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd9c0f46f6c R13: 00007ffe14bf253f R14: 00007fd9be3a9300 R15: 0000000000022000 INFO: task syz-executor.2:7445 blocked for more than 143 seconds. Not tainted 6.5.0-rc3-next-20230725 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:27344 pid:7445 ppid:269 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: 0033:0x7fd9c0e33b19 RSP: 002b:00007fd9be388218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007fd9c0f47028 RCX: 00007fd9c0e33b19 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fd9c0f47028 RBP: 00007fd9c0f47020 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd9c0f4702c R13: 00007ffe14bf253f R14: 00007fd9be388300 R15: 0000000000022000 INFO: task syz-executor.2:7516 blocked for more than 143 seconds. Not tainted 6.5.0-rc3-next-20230725 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:27344 pid:7516 ppid:269 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: 0033:0x7fd9c0e33b19 RSP: 002b:00007fd9be3a9218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007fd9c0f46f68 RCX: 00007fd9c0e33b19 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fd9c0f46f68 RBP: 00007fd9c0f46f60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd9c0f46f6c R13: 00007ffe14bf253f R14: 00007fd9be3a9300 R15: 0000000000022000 INFO: task syz-executor.2:12155 blocked for more than 143 seconds. Not tainted 6.5.0-rc3-next-20230725 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:26904 pid:12155 ppid:269 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: 0033:0x7fd9c0e33b19 RSP: 002b:00007fd9be3a9218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007fd9c0f46f68 RCX: 00007fd9c0e33b19 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fd9c0f46f68 RBP: 00007fd9c0f46f60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd9c0f46f6c R13: 00007ffe14bf253f R14: 00007fd9be3a9300 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: ffffffff8560b910 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xe10 1 lock held by khungtaskd/25: #0: ffffffff8560c4e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x340 5 locks held by kworker/1:1/30: #0: ffff888008468d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x99d/0x1770 #1: ffff88800910fd90 ((optimizing_work).work){+.+.}-{0:0}, at: process_one_work+0x9d0/0x1770 #2: ffffffff856551a8 (kprobe_mutex){+.+.}-{3:3}, at: kprobe_optimizer+0x25/0x7e0 #3: ffffffff854e3210 (cpu_hotplug_lock){++++}-{0:0}, at: kprobe_optimizer+0x2a/0x7e0 #4: ffffffff854f77e8 (text_mutex){+.+.}-{3:3}, at: kprobe_optimizer+0x38/0x7e0 2 locks held by in:imklog/165: #0: ffff88800ec8e0c8 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x97/0xb0 #1: ffff88806cf39558 (&rq->__lock){-.-.}-{2:2}, at: try_to_wake_up+0x5f3/0x1b30 1 lock held by syz-executor.2/4071: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.2/4135: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.0/4139: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.5/4145: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.3/4147: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.2/4153: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.2/4175: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.5/4180: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.0/4184: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.3/4192: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.3/4239: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.3/5241: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.3/5248: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.3/5263: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.5/5289: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.3/5290: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.5/5305: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.3/5309: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.5/5325: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.5/7071: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.5/7080: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.3/7096: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.5/7097: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.5/7110: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.0/7121: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.3/7122: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.5/7141: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.0/7142: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.3/7148: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.0/7163: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.0/7322: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.0/7325: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.0/7359: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.5/7398: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.0/7405: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.2/7406: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.5/7417: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.2/7445: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.5/7466: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.0/7472: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.2/7516: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.2/12155: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.5/12173: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.2/12184: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.2/12195: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.5/12196: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.5/12213: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.2/12215: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.5/12232: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.5/12244: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_trace_destroy+0x27/0x1c0 1 lock held by syz-executor.5/14465: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_kprobe_destroy+0x27/0x200 2 locks held by syz-executor.3/14471: #0: ffffffff87baadb0 (&pmus_srcu){.+.+}-{0:0}, at: perf_event_alloc.part.0+0xcd2/0x3a70 #1: ffffffff856551a8 (kprobe_mutex){+.+.}-{3:3}, at: register_kprobe+0x327/0x1580 2 locks held by syz-executor.0/14469: #0: ffffffff856682e8 (event_mutex){+.+.}-{3:3}, at: perf_kprobe_destroy+0x27/0x200 #1: ffffffff856551a8 (kprobe_mutex){+.+.}-{3:3}, at: disable_kprobe+0x21/0x70 ============================================= tasks_rcu_exit_srcu_stall: rcu_tasks grace period number 45 (since boot) gp_state: RTGS_POST_SCAN_TASKLIST is 153636 jiffies old. Please check any exiting tasks stuck between calls to exit_tasks_rcu_start() and exit_tasks_rcu_finish()