gfs2: path_lookup on ./file0//ile0 returned error -2
gfs2: path_lookup on ./file0//ile0 returned error -2
INFO: task syz-executor4:31489 blocked for more than 140 seconds.
      Not tainted 4.18.0-rc7-next-20180803+ #31
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor4   D23544 31489   4348 0x00000004
Call Trace:
 context_switch kernel/sched/core.c:2823 [inline]
 __schedule+0x87c/0x1ec0 kernel/sched/core.c:3471
 schedule+0xfb/0x450 kernel/sched/core.c:3515
 schedule_preempt_disabled+0x10/0x20 kernel/sched/core.c:3573
 __mutex_lock_common kernel/locking/mutex.c:1003 [inline]
 __mutex_lock+0xbf9/0x1700 kernel/locking/mutex.c:1073
 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1088
 __fdget_pos+0x1bb/0x200 fs/file.c:766
 fdget_pos include/linux/file.h:70 [inline]
 ksys_write+0x7f/0x260 fs/read_write.c:593
 __do_sys_write fs/read_write.c:610 [inline]
 __se_sys_write fs/read_write.c:607 [inline]
 __x64_sys_write+0x73/0xb0 fs/read_write.c:607
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x456b29
Code: 42 08 84 00 48 83 c0 58 48 89 04 24 e8 00 8b fb ff 48 8b 6c 24 08 48 83 c4 10 c3 e8 91 33 00 00 eb bf cc cc cc cc cc cc cc cc <cc> cc cc cc cc cc cc 64 48 8b 0c 25 f8 ff ff ff 48 3b 61 10 76 2b
RSP: 002b:00007fe90fb4ec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fe90fb4f6d4 RCX: 0000000000456b29
RDX: 000000000000000b RSI: 0000000020000040 RDI: 0000000000000015
RBP: 00000000009301e0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000004d6758 R14: 00000000004c9c5d R15: 0000000000000002
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 PID: 776 Comm: khungtaskd Not tainted 4.18.0-rc7-next-20180803+ #31
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c9/0x2b4 lib/dump_stack.c:113
 nmi_cpu_backtrace.cold.3+0x48/0x88 lib/nmi_backtrace.c:101
 nmi_trigger_cpumask_backtrace+0x151/0x192 lib/nmi_backtrace.c:62
 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38
 trigger_all_cpu_backtrace include/linux/nmi.h:144 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:204 [inline]
 watchdog+0xb39/0x10b0 kernel/hung_task.c:265
 kthread+0x35a/0x420 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:415
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.18.0-rc7-next-20180803+ #31
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:reschedule_interrupt+0x0/0x20 arch/x86/entry/entry_64.S:890
Code: 66 2e 0f 1f 84 00 00 00 00 00 68 03 ff ff ff e8 56 f2 ff ff e8 b1 2c 00 00 e9 4b f3 ff ff 66 90 66 2e 0f 1f 84 00 00 00 00 00 <68> 02 ff ff ff e8 36 f2 ff ff e8 21 26 00 00 e9 2b f3 ff ff 66 90
RSP: 0018:ffff8801d9f27c08 EFLAGS: 00000082
RAX: dffffc0000000000 RBX: 1ffff1003b3e4f8a RCX: ffffffff8166d262
RDX: 1ffffffff0fe3620 RSI: 0000000000000004 RDI: ffffffff87f1b100
RBP: ffff8801d9f27c38 R08: ffffed003b6246d7 R09: ffffed003b6246d6
R10: ffffed003b6246d6 R11: ffff8801db1236b3 R12: 0000000000000001
R13: ffff8801d9f27cf0 R14: ffffffff888ad220 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8801db100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffff600400 CR3: 00000001bb8d5000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 arch_safe_halt arch/x86/include/asm/paravirt.h:94 [inline]
 default_idle+0xc7/0x450 arch/x86/kernel/process.c:498
 arch_cpu_idle+0x10/0x20 arch/x86/kernel/process.c:489
 default_idle_call+0x6d/0x90 kernel/sched/idle.c:93
 cpuidle_idle_call kernel/sched/idle.c:153 [inline]
 do_idle+0x3aa/0x570 kernel/sched/idle.c:262
 cpu_startup_entry+0x10c/0x120 kernel/sched/idle.c:368
 start_secondary+0x433/0x5d0 arch/x86/kernel/smpboot.c:270
 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:242