INFO: task syz-executor.2:10712 blocked for more than 143 seconds. Not tainted 5.10.60 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:28368 pid:10712 ppid: 284 flags:0x10000004 Call Trace: context_switch kernel/sched/core.c:3774 [inline] __schedule+0x84b/0x1e90 kernel/sched/core.c:4523 schedule+0xcb/0x270 kernel/sched/core.c:4601 schedule_preempt_disabled+0xc/0x20 kernel/sched/core.c:4660 __mutex_lock_common kernel/locking/mutex.c:1046 [inline] __mutex_lock+0x828/0x12e0 kernel/locking/mutex.c:1114 perf_event_init_context kernel/events/core.c:12799 [inline] perf_event_init_task+0x24d/0x7c0 kernel/events/core.c:12874 copy_process+0x1751/0x64e0 kernel/fork.c:2078 kernel_clone+0xe7/0xa20 kernel/fork.c:2465 __do_sys_clone+0xc8/0x110 kernel/fork.c:2582 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x467a31 RSP: 002b:00007ffe4d912e88 EFLAGS: 00000206 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007fea6b826700 RCX: 0000000000467a31 RDX: 00007fea6b8269d0 RSI: 00007fea6b8262f0 RDI: 00000000003d0f00 RBP: 00007ffe4d9130c0 R08: 00007fea6b826700 R09: 00007fea6b826700 R10: 00007fea6b8269d0 R11: 0000000000000206 R12: 00007ffe4d912f3e R13: 00007ffe4d912f3f R14: 00007fea6b826300 R15: 0000000000022000 INFO: task syz-executor.2:10776 blocked for more than 143 seconds. Not tainted 5.10.60 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:29504 pid:10776 ppid: 284 flags:0x10004004 Call Trace: context_switch kernel/sched/core.c:3774 [inline] __schedule+0x84b/0x1e90 kernel/sched/core.c:4523 schedule+0xcb/0x270 kernel/sched/core.c:4601 schedule_preempt_disabled+0xc/0x20 kernel/sched/core.c:4660 __mutex_lock_common kernel/locking/mutex.c:1046 [inline] __mutex_lock+0x828/0x12e0 kernel/locking/mutex.c:1114 mutex_lock_double kernel/events/core.c:11593 [inline] __perf_event_ctx_lock_double kernel/events/core.c:11652 [inline] __do_sys_perf_event_open+0x1234/0x2c80 kernel/events/core.c:11922 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x466609 RSP: 002b:00007fea6b847188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 000000000056c038 RCX: 0000000000466609 RDX: 0000000000000000 RSI: 000000000000022f RDI: 0000000020000000 RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000004 R11: 0000000000000246 R12: 000000000056c038 R13: 00007ffe4d912f3f R14: 00007fea6b847300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by khungtaskd/22: #0: ffffffff84df66e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x269 kernel/locking/lockdep.c:6377 2 locks held by jbd2/sda-8/78: #0: ffff88806ce33218 (&rq->lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1294 [inline] #0: ffff88806ce33218 (&rq->lock){-.-.}-{2:2}, at: __schedule+0x1e2/0x1e90 kernel/sched/core.c:4441 #1: ffffffff84df66e0 (rcu_read_lock){....}-{1:2}, at: trace_sched_stat_runtime include/trace/events/sched.h:435 [inline] #1: ffffffff84df66e0 (rcu_read_lock){....}-{1:2}, at: update_curr+0x279/0x7b0 kernel/sched/fair.c:879 1 lock held by in:imklog/179: 2 locks held by rs:main Q:Reg/181: #0: ffff88800f8a59f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:930 #1: ffff88800f93c438 (sb_writers#3){.+.+}-{0:0}, at: ksys_write+0x12d/0x250 fs/read_write.c:658 1 lock held by syz-executor.2/10712: #0: ffff88804a3de4b0 (&ctx->mutex){+.+.}-{3:3}, at: perf_event_init_context kernel/events/core.c:12799 [inline] #0: ffff88804a3de4b0 (&ctx->mutex){+.+.}-{3:3}, at: perf_event_init_task+0x24d/0x7c0 kernel/events/core.c:12874 3 locks held by syz-executor.2/10776: #0: ffff888008e892d8 (&sig->exec_update_lock){++++}-{3:3}, at: __do_sys_perf_event_open+0xfbf/0x2c80 kernel/events/core.c:11904 #1: ffff88804a3de4b0 (&ctx->mutex){+.+.}-{3:3}, at: mutex_lock_double kernel/events/core.c:11592 [inline] #1: ffff88804a3de4b0 (&ctx->mutex){+.+.}-{3:3}, at: __perf_event_ctx_lock_double kernel/events/core.c:11652 [inline] #1: ffff88804a3de4b0 (&ctx->mutex){+.+.}-{3:3}, at: __do_sys_perf_event_open+0x1227/0x2c80 kernel/events/core.c:11922 #2: ffff88804a3de4b0 (&ctx->mutex/1){+.+.}-{3:3}, at: mutex_lock_double kernel/events/core.c:11593 [inline] #2: ffff88804a3de4b0 (&ctx->mutex/1){+.+.}-{3:3}, at: __perf_event_ctx_lock_double kernel/events/core.c:11652 [inline] #2: ffff88804a3de4b0 (&ctx->mutex/1){+.+.}-{3:3}, at: __do_sys_perf_event_open+0x1234/0x2c80 kernel/events/core.c:11922 =============================================