R13: 00000000004bde6f R14: 00000000004ccd00 R15: 0000000000000004
QAT: Invalid ioctl
QAT: Invalid ioctl
INFO: task syz-executor0:5841 blocked for more than 140 seconds.
      Not tainted 4.19.0-rc6+ #43
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor0   D19000  5841      1 0x00000004
Call Trace:
 context_switch kernel/sched/core.c:2825 [inline]
 __schedule+0x86c/0x1ed0 kernel/sched/core.c:3473
 schedule+0xfe/0x460 kernel/sched/core.c:3517
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3575
 __mutex_lock_common kernel/locking/mutex.c:1002 [inline]
 __mutex_lock+0xbe7/0x1700 kernel/locking/mutex.c:1072
 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087
 vfat_lookup+0xf1/0x640 fs/fat/namei_vfat.c:709
 __lookup_slow+0x2b5/0x540 fs/namei.c:1671
 lookup_slow+0x57/0x80 fs/namei.c:1688
 walk_component+0x92b/0x25c0 fs/namei.c:1810
 link_path_walk.part.40+0xa61/0x1530 fs/namei.c:2141
 link_path_walk fs/namei.c:2072 [inline]
 path_openat+0x270/0x5160 fs/namei.c:3533
 do_filp_open+0x255/0x380 fs/namei.c:3564
 do_sys_open+0x568/0x700 fs/open.c:1063
 __do_sys_open fs/open.c:1081 [inline]
 __se_sys_open fs/open.c:1076 [inline]
 __x64_sys_open+0x7e/0xc0 fs/open.c:1076
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4555a0
Code: Bad RIP value.
RSP: 002b:00007ffff801cfb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004555a0
RDX: 0000000000000000 RSI: 0000000000090800 RDI: 00000000004bc2ce
RBP: 000000000000028a R08: 0000000000000001 R09: 00000000028f7940
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000009
R13: 000000000004d0f5 R14: 0000000000000088 R15: 0000000000000000
INFO: task syz-executor0:11394 blocked for more than 140 seconds.
      Not tainted 4.19.0-rc6+ #43
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor0   D24992 11394   5841 0x00000004
Call Trace:
 context_switch kernel/sched/core.c:2825 [inline]
 __schedule+0x86c/0x1ed0 kernel/sched/core.c:3473
 schedule+0xfe/0x460 kernel/sched/core.c:3517
 d_wait_lookup fs/dcache.c:2428 [inline]
 d_alloc_parallel+0x1474/0x1f40 fs/dcache.c:2510
 lookup_open+0x560/0x1b90 fs/namei.c:3147
 do_last fs/namei.c:3324 [inline]
 path_openat+0x252d/0x5160 fs/namei.c:3534
 do_filp_open+0x255/0x380 fs/namei.c:3564
 do_sys_open+0x568/0x700 fs/open.c:1063
 __do_sys_openat fs/open.c:1090 [inline]
 __se_sys_openat fs/open.c:1084 [inline]
 __x64_sys_openat+0x9d/0x100 fs/open.c:1084
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457579
Code: Bad RIP value.
RSP: 002b:00007f98a10fcc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000457579
RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000007
RBP: 000000000072bfa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f98a10fd6d4
R13: 00000000004c2b26 R14: 00000000004d4140 R15: 00000000ffffffff
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 PID: 982 Comm: khungtaskd Not tainted 4.19.0-rc6+ #43
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+0x1c4/0x2b4 lib/dump_stack.c:113
 nmi_cpu_backtrace.cold.3+0x63/0xa2 lib/nmi_backtrace.c:101
 nmi_trigger_cpumask_backtrace+0x1b3/0x1ed 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+0xb3e/0x1050 kernel/hung_task.c:265
 kthread+0x35a/0x420 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413
Sending NMI from CPU 0 to CPUs 1:
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.747 msecs
NMI backtrace for cpu 1
CPU: 1 PID: 10 Comm: rcu_preempt Not tainted 4.19.0-rc6+ #43
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__lock_acquire+0x7f/0x4ec0 kernel/locking/lockdep.c:3270
Code: 00 48 8d 84 24 a0 00 00 00 48 c7 84 24 b0 00 00 00 a0 6e 60 81 48 c1 e8 03 48 89 84 24 90 00 00 00 48 01 d0 c7 00 f1 f1 f1 f1 <c7> 40 04 00 f2 f2 f2 c7 40 08 f2 f2 f2 f2 c7 40 0c 00 00 00 f2 c7
RSP: 0018:ffff8801d9aded50 EFLAGS: 00000086
RAX: ffffed003b35bdbe RBX: 1ffff1003b35be26 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffffffff8b042700
RBP: ffff8801d9adf0d8 R08: 0000000000000001 R09: 0000000000000001
R10: ffffed003b5e5968 R11: 0000000000000000 R12: 0000000000000001
R13: ffffffff8b042700 R14: 0000000000000001 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffff600400 CR3: 00000001d31a7000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3900
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x99/0xd0 kernel/locking/spinlock.c:152
 debug_object_assert_init+0xec/0x4b0 lib/debugobjects.c:677
 debug_timer_assert_init kernel/time/timer.c:724 [inline]
 debug_assert_init kernel/time/timer.c:776 [inline]
 try_to_del_timer_sync+0x7c/0x140 kernel/time/timer.c:1223
 del_timer_sync+0x1b6/0x270 kernel/time/timer.c:1293
 schedule_timeout+0x148/0x260 kernel/time/timer.c:1805
 rcu_gp_kthread+0x9d9/0x2310 kernel/rcu/tree.c:2194
 kthread+0x35a/0x420 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413