INFO: task syz.7.737:11512 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.7.737       state:D stack:24120 pid:11512 tgid:11508 ppid:11217  task_flags:0x400140 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x17b4/0x5680
 schedule+0x164/0x360
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x7f7/0x1550
 lmLogOpen+0x1a1/0xfa0
 jfs_mount_rw+0xee/0x670
 jfs_fill_super+0x754/0xd80
 get_tree_bdev_flags+0x431/0x4f0
 vfs_get_tree+0x92/0x2a0
 do_new_mount+0x341/0xd30
 __se_sys_mount+0x31d/0x420
 do_syscall_64+0x15f/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc1af99e04a
RSP: 002b:00007fc1b08f1e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fc1b08f1ee0 RCX: 00007fc1af99e04a
RDX: 0000200000000000 RSI: 0000200000000880 RDI: 00007fc1b08f1ea0
RBP: 0000200000000000 R08: 00007fc1b08f1ee0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000880
R13: 00007fc1b08f1ea0 R14: 000000000000626d R15: 00002000000000c0
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/34:
 #0: ffffffff8e95cd60 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by getty/5433:
 #0: ffff88816ba920a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc9000346e2e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45c/0x13a0
3 locks held by kworker/0:6/5719:
 #0: ffff88810006b140 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0xa35/0x1860
 #1: ffff888121024588 (psi_seq){-.-.}-{0:0}, at: psi_task_switch+0x53/0x880
 #2: ffff8881099ba250 (&data->fib_lock){+.+.}-{4:4}, at: nsim_fib_event_work+0x202/0x3d0
2 locks held by syz-executor/10119:
 #0: ffff8881afac60d8 (&type->s_umount_key#91){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
 #1: ffffffff8edf7d40 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb4/0x520
2 locks held by syz.7.737/11512:
 #0: ffff888176fe80d8 (&type->s_umount_key#83/1){+.+.}-{4:4}, at: alloc_super+0x28c/0xab0
 #1: ffffffff8edf7d40 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogOpen+0x1a1/0xfa0
2 locks held by syz-executor/11684:
 #0: ffff8881746ce0d8 (&type->s_umount_key#91){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
 #1: ffffffff8edf7d40 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb4/0x520
1 lock held by syz.1.814/12144:
 #0: ffff8881afac60d8 (&type->s_umount_key#91){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
2 locks held by syz.3.857/12520:
 #0: ffff8881787d40d8 (&type->s_umount_key#91){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
 #1: ffffffff8edf7d40 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb4/0x520
2 locks held by syz.8.884/12670:
 #0: ffff8881b18420d8 (&type->s_umount_key#91){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
 #1: ffffffff8edf7d40 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb4/0x520
1 lock held by syz.1.1079/13787:
 #0: ffff8881afac60d8 (&type->s_umount_key#91){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
1 lock held by syz.4.1130/13994:
 #0: ffff8881746ce0d8 (&type->s_umount_key#91){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
2 locks held by dhcpcd/14458:
 #0: ffff888110bfe260 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x33/0xe10
 #1: ffffffff8e963068 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x38d/0x770

=============================================

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 34 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/0x300
 sys_info+0x135/0x170
 watchdog+0xfd3/0x1030
 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: 0 Comm: swapper/1 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:pv_native_safe_halt+0xf/0x20
Code: 1b 7e 02 e9 93 f6 02 00 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d 13 31 21 00 fb f4 <c3> cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90
RSP: 0018:ffffc90000197e20 EFLAGS: 00000206
RAX: 000000000017bf87 RBX: ffffffff819a814a RCX: 0000000080000001
RDX: 0000000000000001 RSI: ffffffff8dfa5af1 RDI: ffffffff8c28ac60
RBP: ffffc90000197f10 R08: ffff88823c6339db R09: 1ffff110478c673b
R10: dffffc0000000000 R11: ffffed10478c673c R12: 0000000000000001
R13: 1ffff1102c155000 R14: 0000000000000001 R15: 1ffff1102c155000
FS:  0000000000000000(0000) GS:ffff8882a9290000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdc82bea2f8 CR3: 00000001747f8000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 default_idle+0x9/0x20
 default_idle_call+0x72/0xb0
 do_idle+0x36a/0x5f0
 cpu_startup_entry+0x43/0x60
 start_secondary+0x101/0x110
 common_startup_64+0x13e/0x147
 </TASK>
