| TITLE: INFO: task hung in input_close_device |
| |
| [ 369.632214] INFO: task syz-executor4:8442 blocked for more than 120 seconds. |
| [ 369.639487] Not tainted 4.15.0-rc7-next-20180115+ #97 |
| [ 369.645214] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. |
| [ 369.653184] syz-executor4 D21856 8442 4763 0x80000002 |
| [ 369.658821] Call Trace: |
| [ 369.661423] __schedule+0x8eb/0x2060 |
| [ 369.665150] ? __sched_text_start+0x8/0x8 |
| [ 369.669304] ? lock_downgrade+0x980/0x980 |
| [ 369.673461] ? lock_release+0xa40/0xa40 |
| [ 369.677449] ? mark_held_locks+0xaf/0x100 |
| [ 369.681611] ? check_noncircular+0x20/0x20 |
| [ 369.685872] ? trace_hardirqs_on+0xd/0x10 |
| [ 369.690041] ? check_noncircular+0x20/0x20 |
| [ 369.694288] schedule+0xf5/0x430 |
| [ 369.697702] ? debug_object_deactivate+0x560/0x560 |
| [ 369.702648] ? __schedule+0x2060/0x2060 |
| [ 369.706634] ? print_irqtrace_events+0x270/0x270 |
| [ 369.711401] ? wait_for_completion+0x40d/0x770 |
| [ 369.715990] ? lock_downgrade+0x980/0x980 |
| [ 369.720147] schedule_timeout+0x1a3/0x230 |
| [ 369.724301] ? usleep_range+0x190/0x190 |
| [ 369.728284] ? mark_held_locks+0xaf/0x100 |
| [ 369.732437] ? _raw_spin_unlock_irq+0x27/0x70 |
| [ 369.736937] ? trace_hardirqs_on_caller+0x421/0x5c0 |
| [ 369.741965] wait_for_completion+0x415/0x770 |
| [ 369.746390] ? wait_for_completion_interruptible+0x7e0/0x7e0 |
| [ 369.752198] ? __lockdep_init_map+0xe4/0x650 |
| [ 369.756614] ? lockdep_init_map+0x9/0x10 |
| [ 369.760718] ? __init_waitqueue_head+0x97/0x140 |
| [ 369.765422] ? wake_up_q+0xe0/0xe0 |
| [ 369.768965] ? kasan_slab_free+0xe/0x10 |
| [ 369.772940] ? kfree+0xd9/0x260 |
| [ 369.776225] ? mousedev_release+0x68/0xb0 |
| [ 369.780371] ? __fput+0x327/0x7e0 |
| [ 369.783824] ? ____fput+0x15/0x20 |
| [ 369.787288] __wait_rcu_gp+0x221/0x340 |
| [ 369.791195] synchronize_sched.part.64+0xac/0x100 |
| [ 369.796044] ? synchronize_sched_expedited+0xf0/0xf0 |
| [ 369.801153] ? call_rcu_bh+0x20/0x20 |
| [ 369.804883] ? trace_event_raw_event_sched_switch+0x800/0x800 |
| [ 369.810780] ? trace_raw_output_rcu_utilization+0xb0/0xb0 |
| [ 369.816333] ? __might_sleep+0x95/0x190 |
| [ 369.825883] synchronize_sched+0x76/0xf0 |
| [ 369.829995] input_close_device+0xf6/0x130 |
| [ 369.834241] ? mousedev_detach_client+0x260/0x260 |
| [ 369.839088] mousedev_close_device+0x94/0xb0 |
| [ 369.843501] mixdev_close_devices+0xe0/0x120 |
| [ 369.847917] mousedev_release+0x8f/0xb0 |
| [ 369.851895] __fput+0x327/0x7e0 |
| [ 369.855186] ? fput+0x140/0x140 |
| [ 369.858473] ? trace_event_raw_event_sched_switch+0x800/0x800 |
| [ 369.864361] ? _raw_spin_unlock_irq+0x27/0x70 |
| [ 369.868892] ____fput+0x15/0x20 |
| [ 369.872175] task_work_run+0x199/0x270 |
| [ 369.876073] ? task_work_cancel+0x210/0x210 |
| [ 369.880401] ? _raw_spin_unlock+0x22/0x30 |
| [ 369.884556] ? switch_task_namespaces+0x87/0xc0 |
| [ 369.889284] do_exit+0x9bb/0x1ad0 |
| [ 369.892754] ? mm_update_next_owner+0x930/0x930 |
| [ 369.897445] ? debug_check_no_locks_freed+0x3c0/0x3c0 |
| [ 369.902648] ? lock_release+0xa40/0xa40 |
| [ 369.906639] ? do_raw_spin_trylock+0x190/0x190 |
| [ 369.911229] ? perf_trace_lock+0xd6/0x900 |
| [ 369.915452] ? perf_trace_lock+0xd6/0x900 |
| [ 369.919607] ? check_noncircular+0x20/0x20 |
| [ 369.923851] ? trace_event_raw_event_lock+0x340/0x340 |
| [ 369.929051] ? check_noncircular+0x20/0x20 |
| [ 369.933312] ? find_held_lock+0x35/0x1d0 |
| [ 369.937393] ? find_held_lock+0x35/0x1d0 |
| [ 369.941481] ? get_signal+0x7ae/0x16c0 |
| [ 369.945374] ? lock_downgrade+0x980/0x980 |
| [ 369.949537] do_group_exit+0x149/0x400 |
| [ 369.953448] ? do_raw_spin_trylock+0x190/0x190 |
| [ 369.958038] ? SyS_exit+0x30/0x30 |
| [ 369.961494] ? _raw_spin_unlock_irq+0x27/0x70 |
| [ 369.966030] ? trace_hardirqs_on_caller+0x421/0x5c0 |
| [ 369.971062] get_signal+0x73f/0x16c0 |
| [ 369.974799] ? ptrace_notify+0x130/0x130 |
| [ 369.978870] ? __schedule+0x2060/0x2060 |
| [ 369.982857] ? trace_event_raw_event_sched_switch+0x800/0x800 |
| [ 369.988751] ? dl_cpu_busy+0x370/0x370 |
| [ 369.992648] ? __might_sleep+0x95/0x190 |
| [ 369.996640] do_signal+0x90/0x1eb0 |
| [ 370.000200] ? mousedev_disconnect+0x3c0/0x3c0 |
| [ 370.004798] ? _raw_spin_unlock_irqrestore+0xa6/0xba |
| [ 370.009906] ? setup_sigcontext+0x7d0/0x7d0 |
| [ 370.014232] ? prepare_to_wait+0x4d0/0x4d0 |
| [ 370.018483] ? mousedev_disconnect+0x3c0/0x3c0 |
| [ 370.023065] ? __vfs_read+0xf7/0xa00 |
| [ 370.026796] ? vfs_copy_file_range+0x940/0x940 |
| [ 370.031391] ? fsnotify_first_mark+0x2b0/0x2b0 |
| [ 370.035979] ? exit_to_usermode_loop+0x8c/0x2f0 |
| [ 370.040667] exit_to_usermode_loop+0x258/0x2f0 |
| [ 370.045257] ? trace_event_raw_event_sys_exit+0x260/0x260 |
| [ 370.050803] ? rw_verify_area+0xe5/0x2b0 |
| [ 370.054870] ? __fdget_raw+0x20/0x20 |
| [ 370.058600] syscall_return_slowpath+0x490/0x550 |
| [ 370.063365] ? prepare_exit_to_usermode+0x340/0x340 |
| [ 370.068391] ? SyS_read+0x184/0x220 |
| [ 370.072118] ? entry_SYSCALL_64_fastpath+0x73/0xa0 |
| [ 370.077057] ? trace_hardirqs_on_caller+0x421/0x5c0 |
| [ 370.082079] ? trace_hardirqs_on_thunk+0x1a/0x1c |
| [ 370.086850] entry_SYSCALL_64_fastpath+0x9e/0xa0 |
| [ 370.091610] RIP: 0033:0x452df9 |
| [ 370.094803] RSP: 002b:00007fc30d193c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000000 |
| [ 370.102516] RAX: fffffffffffffe00 RBX: 000000000071bea0 RCX: 0000000000452df9 |
| [ 370.109791] RDX: 0000000000000000 RSI: 00000000204fa000 RDI: 0000000000000013 |
| [ 370.117064] RBP: 000000000000043f R08: 0000000000000000 R09: 0000000000000000 |
| [ 370.124338] R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f4688 |
| [ 370.131625] R13: 00000000ffffffff R14: 00007fc30d1946d4 R15: 0000000000000000 |
