RDX: 0000000000000000 RSI: 0000000000000153 RDI: 0000000020000000 RBP: 00007f2a772441d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffde8455d5f R14: 00007f2a77244300 R15: 0000000000022000 INFO: task syz-executor.4:7462 blocked for more than 143 seconds. Not tainted 5.10.229 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:29504 pid: 7462 ppid: 289 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:3797 [inline] __schedule+0x824/0x1ea0 kernel/sched/core.c:4545 schedule+0xcb/0x270 kernel/sched/core.c:4623 schedule_preempt_disabled+0xc/0x20 kernel/sched/core.c:4682 __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:11716 [inline] __perf_event_ctx_lock_double kernel/events/core.c:11860 [inline] __do_sys_perf_event_open+0x1244/0x2e60 kernel/events/core.c:12133 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f46fbc71b19 RSP: 002b:00007f46f91e7188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007f46fbd84f60 RCX: 00007f46fbc71b19 RDX: 0000000000000000 RSI: 0000000000000148 RDI: 0000000020001d80 RBP: 00007f46fbccbf6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff575cb27f R14: 00007f46f91e7300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by khungtaskd/22: #0: ffffffff84ff9960 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x27b kernel/locking/lockdep.c:6407 1 lock held by in:imklog/178: 3 locks held by syz-executor.4/7462: #0: ffff88800d8d53d8 (&sig->exec_update_lock){++++}-{3:3}, at: __do_sys_perf_event_open+0xfc1/0x2e60 kernel/events/core.c:12115 #1: ffff8880480c80b0 (&ctx->mutex){+.+.}-{3:3}, at: mutex_lock_double kernel/events/core.c:11715 [inline] #1: ffff8880480c80b0 (&ctx->mutex){+.+.}-{3:3}, at: __perf_event_ctx_lock_double kernel/events/core.c:11860 [inline] #1: ffff8880480c80b0 (&ctx->mutex){+.+.}-{3:3}, at: __do_sys_perf_event_open+0x1237/0x2e60 kernel/events/core.c:12133 #2: ffff8880480c80b0 (&ctx->mutex/1){+.+.}-{3:3}, at: mutex_lock_double kernel/events/core.c:11716 [inline] #2: ffff8880480c80b0 (&ctx->mutex/1){+.+.}-{3:3}, at: __perf_event_ctx_lock_double kernel/events/core.c:11860 [inline] #2: ffff8880480c80b0 (&ctx->mutex/1){+.+.}-{3:3}, at: __do_sys_perf_event_open+0x1244/0x2e60 kernel/events/core.c:12133 =============================================