INFO: task syz-executor.7:60522 blocked for more than 143 seconds. Not tainted 5.10.237 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.7 state:D stack:29168 pid:60522 ppid: 15238 flags:0x10004004 Call Trace: context_switch kernel/sched/core.c:3799 [inline] __schedule+0x824/0x1ea0 kernel/sched/core.c:4547 schedule+0xcb/0x270 kernel/sched/core.c:4625 schedule_preempt_disabled+0xc/0x20 kernel/sched/core.c:4684 __mutex_lock_common kernel/locking/mutex.c:1047 [inline] __mutex_lock+0x7a8/0x10b0 kernel/locking/mutex.c:1109 mutex_lock_double kernel/events/core.c:11717 [inline] __perf_event_ctx_lock_double kernel/events/core.c:11861 [inline] __do_sys_perf_event_open+0x1244/0x2e60 kernel/events/core.c:12134 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f6d86890b19 RSP: 002b:00007f6d83e06188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007f6d869a3f60 RCX: 00007f6d86890b19 RDX: 0000000000000000 RSI: 00000000000002e8 RDI: 0000000020001d80 RBP: 00007f6d868eaf6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffff63cc40f R14: 00007f6d83e06300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by khungtaskd/22: #0: ffffffff84ff9220 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x27b kernel/locking/lockdep.c:6410 2 locks held by in:imklog/179: 3 locks held by syz-executor.7/60522: #0: ffff88800ee1d3d8 (&sig->exec_update_lock){++++}-{3:3}, at: __do_sys_perf_event_open+0xfc1/0x2e60 kernel/events/core.c:12116 #1: ffff888041d6d8b0 (&ctx->mutex){+.+.}-{3:3}, at: mutex_lock_double kernel/events/core.c:11716 [inline] #1: ffff888041d6d8b0 (&ctx->mutex){+.+.}-{3:3}, at: __perf_event_ctx_lock_double kernel/events/core.c:11861 [inline] #1: ffff888041d6d8b0 (&ctx->mutex){+.+.}-{3:3}, at: __do_sys_perf_event_open+0x1237/0x2e60 kernel/events/core.c:12134 #2: ffff888041d6d8b0 (&ctx->mutex/1){+.+.}-{3:3}, at: mutex_lock_double kernel/events/core.c:11717 [inline] #2: ffff888041d6d8b0 (&ctx->mutex/1){+.+.}-{3:3}, at: __perf_event_ctx_lock_double kernel/events/core.c:11861 [inline] #2: ffff888041d6d8b0 (&ctx->mutex/1){+.+.}-{3:3}, at: __do_sys_perf_event_open+0x1244/0x2e60 kernel/events/core.c:12134 =============================================