EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue EXT4-fs error (device loop1): ext4_orphan_get:1417: comm syz-executor.1: bad orphan inode 301979167 EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue INFO: task syz-executor.5:30306 blocked for more than 143 seconds. Not tainted 5.10.184 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:27952 pid:30306 ppid: 291 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:3800 [inline] __schedule+0x824/0x1ea0 kernel/sched/core.c:4548 schedule+0xcb/0x270 kernel/sched/core.c:4626 schedule_preempt_disabled+0xc/0x20 kernel/sched/core.c:4685 __mutex_lock_common kernel/locking/mutex.c:1047 [inline] __mutex_lock+0x7a8/0x10b0 kernel/locking/mutex.c:1109 perf_event_init_context kernel/events/core.c:12906 [inline] perf_event_init_task+0x25a/0x800 kernel/events/core.c:12981 copy_process+0x180b/0x6740 kernel/fork.c:2092 kernel_clone+0xe7/0x980 kernel/fork.c:2503 __do_sys_clone+0xc8/0x110 kernel/fork.c:2620 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xc6 RIP: 0033:0x7f7ddcaa7f41 RSP: 002b:00007ffdf7a3cb08 EFLAGS: 00000206 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007f7dd9fda700 RCX: 00007f7ddcaa7f41 RDX: 00007f7dd9fda9d0 RSI: 00007f7dd9fda2f0 RDI: 00000000003d0f00 RBP: 00007ffdf7a3cd40 R08: 00007f7dd9fda700 R09: 00007f7dd9fda700 R10: 00007f7dd9fda9d0 R11: 0000000000000206 R12: 00007ffdf7a3cbbe R13: 00007ffdf7a3cbbf R14: 00007f7dd9fda300 R15: 0000000000022000 INFO: task syz-executor.5:30323 blocked for more than 143 seconds. Not tainted 5.10.184 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:28576 pid:30323 ppid: 291 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:3800 [inline] __schedule+0x824/0x1ea0 kernel/sched/core.c:4548 schedule+0xcb/0x270 kernel/sched/core.c:4626 schedule_preempt_disabled+0xc/0x20 kernel/sched/core.c:4685 __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:11598 [inline] __perf_event_ctx_lock_double kernel/events/core.c:11742 [inline] __do_sys_perf_event_open+0x1248/0x2d50 kernel/events/core.c:12015 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xc6 RIP: 0033:0x7f7ddcaa6b19 RSP: 002b:00007f7dd9ffb188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007f7ddcbba020 RCX: 00007f7ddcaa6b19 RDX: 0000000000000000 RSI: 0000000000000582 RDI: 0000000020000000 RBP: 00007f7ddcb00f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdf7a3cbbf R14: 00007f7dd9ffb300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by khungtaskd/22: #0: ffffffff84ff7fa0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x27b kernel/locking/lockdep.c:6390 2 locks held by in:imklog/177: 1 lock held by syz-executor.5/30306: #0: ffff888009b108b0 (&ctx->mutex){+.+.}-{3:3}, at: perf_event_init_context kernel/events/core.c:12906 [inline] #0: ffff888009b108b0 (&ctx->mutex){+.+.}-{3:3}, at: perf_event_init_task+0x25a/0x800 kernel/events/core.c:12981 3 locks held by syz-executor.5/30323: #0: ffff88805036fad8 (&sig->exec_update_lock){++++}-{3:3}, at: __do_sys_perf_event_open+0xfc5/0x2d50 kernel/events/core.c:11997 #1: ffff888009b108b0 (&ctx->mutex){+.+.}-{3:3}, at: mutex_lock_double kernel/events/core.c:11597 [inline] #1: ffff888009b108b0 (&ctx->mutex){+.+.}-{3:3}, at: __perf_event_ctx_lock_double kernel/events/core.c:11742 [inline] #1: ffff888009b108b0 (&ctx->mutex){+.+.}-{3:3}, at: __do_sys_perf_event_open+0x123b/0x2d50 kernel/events/core.c:12015 #2: ffff888009b108b0 (&ctx->mutex/1){+.+.}-{3:3}, at: mutex_lock_double kernel/events/core.c:11598 [inline] #2: ffff888009b108b0 (&ctx->mutex/1){+.+.}-{3:3}, at: __perf_event_ctx_lock_double kernel/events/core.c:11742 [inline] #2: ffff888009b108b0 (&ctx->mutex/1){+.+.}-{3:3}, at: __do_sys_perf_event_open+0x1248/0x2d50 kernel/events/core.c:12015 =============================================