INFO: task syz.5.136:6831 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.5.136       state:D stack:28808 pid:6831  tgid:6828  ppid:6489   task_flags:0x400040 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x17d9/0x56c0
 schedule+0x164/0x2b0
 schedule_preempt_disabled+0x13/0x30
 rwsem_down_write_slowpath+0x87d/0x1080
 down_write+0x1bc/0x200
 path_openat+0xae3/0x3830
 do_file_open+0x23e/0x4a0
 do_sys_openat2+0x115/0x200
 __x64_sys_openat+0x138/0x170
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fce82b9ce59
RSP: 002b:00007fce83a94028 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fce82e16090 RCX: 00007fce82b9ce59
RDX: 0000000000101042 RSI: 0000200000000040 RDI: ffffffffffffff9c
RBP: 00007fce82c32e6f R08: 0000000000000000 R09: 0000000000000000
R10: 00000000000001d8 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fce82e16128 R14: 00007fce82e16090 R15: 00007fff2dfa9da8
 </TASK>
INFO: task syz.5.136:6832 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.5.136       state:D stack:25704 pid:6832  tgid:6828  ppid:6489   task_flags:0x400140 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x17d9/0x56c0
 schedule+0x164/0x2b0
 schedule_preempt_disabled+0x13/0x30
 rwsem_down_read_slowpath+0x6ba/0x920
 down_read+0x9c/0x330
 lookup_slow+0x46/0x70
 path_lookupat+0x3f5/0x8c0
 filename_lookup+0x265/0x5d0
 user_statfs+0xb2/0x1c0
 __x64_sys_statfs+0x120/0x270
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fce82b9ce59
RSP: 002b:00007fce83a73028 EFLAGS: 00000246 ORIG_RAX: 0000000000000089
RAX: ffffffffffffffda RBX: 00007fce82e16180 RCX: 00007fce82b9ce59
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000200000000080
RBP: 00007fce82c32e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fce82e16218 R14: 00007fce82e16180 R15: 00007fff2dfa9da8
 </TASK>
INFO: task syz.5.136:6853 blocked for more than 144 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.5.136       state:D stack:26576 pid:6853  tgid:6828  ppid:6489   task_flags:0x400040 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x17d9/0x56c0
 schedule+0x164/0x2b0
 schedule_preempt_disabled+0x13/0x30
 rwsem_down_write_slowpath+0x87d/0x1080
 down_write+0x1bc/0x200
 path_openat+0xae3/0x3830
 do_file_open+0x23e/0x4a0
 do_sys_openat2+0x115/0x200
 __x64_sys_openat+0x138/0x170
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fce82b9ce59
RSP: 002b:00007fce83a52028 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fce82e16270 RCX: 00007fce82b9ce59
RDX: 0000000000000042 RSI: 0000200000000080 RDI: ffffffffffffff9c
RBP: 00007fce82c32e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fce82e16308 R14: 00007fce82e16270 R15: 00007fff2dfa9da8
 </TASK>
INFO: task syz.5.136:6881 blocked for more than 144 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.5.136       state:D stack:28808 pid:6881  tgid:6828  ppid:6489   task_flags:0x400040 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x17d9/0x56c0
 schedule+0x164/0x2b0
 schedule_preempt_disabled+0x13/0x30
 rwsem_down_write_slowpath+0x87d/0x1080
 down_write+0x1bc/0x200
 path_openat+0xae3/0x3830
 do_file_open+0x23e/0x4a0
 do_sys_openat2+0x115/0x200
 __x64_sys_openat+0x138/0x170
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fce82b9ce59
RSP: 002b:00007fce83a31028 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fce82e16360 RCX: 00007fce82b9ce59
RDX: 0000000000101142 RSI: 0000200000000080 RDI: ffffffffffffff9c
RBP: 00007fce82c32e6f R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000eaff R11: 0000000000000246 R12: 0000000000000000
R13: 00007fce82e163f8 R14: 00007fce82e16360 R15: 00007fff2dfa9da8
 </TASK>
INFO: task syz.5.136:6884 blocked for more than 144 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.5.136       state:D stack:28808 pid:6884  tgid:6828  ppid:6489   task_flags:0x400040 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x17d9/0x56c0
 schedule+0x164/0x2b0
 schedule_preempt_disabled+0x13/0x30
 rwsem_down_write_slowpath+0x87d/0x1080
 down_write+0x1bc/0x200
 path_openat+0xae3/0x3830
 do_file_open+0x23e/0x4a0
 do_sys_openat2+0x115/0x200
 __x64_sys_openat+0x138/0x170
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fce82b9ce59
RSP: 002b:00007fce83a10028 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fce82e16450 RCX: 00007fce82b9ce59
RDX: 0000000000101042 RSI: 0000200000000040 RDI: ffffffffffffff9c
RBP: 00007fce82c32e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000015 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fce82e164e8 R14: 00007fce82e16450 R15: 00007fff2dfa9da8
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 35 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150
 nmi_cpu_backtrace+0x274/0x2d0
 nmi_trigger_cpumask_backtrace+0x17a/0x380
 sys_info+0x135/0x170
 watchdog+0xfd7/0x1030
 kthread+0x388/0x470
 ret_from_fork+0x514/0xb70
 ret_from_fork_asm+0x1a/0x30
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 9299 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:touch_softlockup_watchdog+0x1c/0x30
Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa e8 97 b9 ff ff 65 48 c7 05 c3 e6 79 11 ff ff ff ff 65 8b 3d f8 57 79 11 <e9> 6f a2 c7 ff 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90
RSP: 0018:ffffc900035ff6f8 EFLAGS: 00000093
RAX: ffffffff81c6a829 RBX: 0000000000000000 RCX: ffff888173a53b80
RDX: 0000000000000000 RSI: ffffffff9a4f5b40 RDI: 0000000000000001
RBP: ffffc900035ff870 R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffffff854b11a0 R12: dffffc0000000000
R13: ffffffff9a80ae40 R14: ffffffff9a80b138 R15: ffffffff8f22fda0
FS:  0000555572135500(0000) GS:ffff8882a9220000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055b0b7979680 CR3: 00000001bf02a000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 serial8250_console_write+0xc6/0x1ba0
 console_flush_all+0x6ea/0xaf0
 console_unlock+0xd1/0x1c0
 vprintk_emit+0x485/0x560
 _printk+0xdd/0x130
 ocfs2_dismount_volume+0x56a/0x8d0
 generic_shutdown_super+0x13d/0x2d0
 kill_block_super+0x44/0x90
 deactivate_locked_super+0xbc/0x130
 cleanup_mnt+0x3d3/0x460
 task_work_run+0x1d9/0x270
 exit_to_user_mode_loop+0x1fa/0x730
 do_syscall_64+0x353/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2f9d19e097
Code: a2 c7 05 5c 06 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffd2e1882f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f2f9d2322ca RCX: 00007f2f9d19e097
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd2e1883b0
RBP: 00007ffd2e1883b0 R08: 00007ffd2e1893b0 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd2e189440
R13: 00007f2f9d2322ca R14: 000000000004168e R15: 00007ffd2e189480
 </TASK>
