INFO: task syz-executor:11507 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:22328 pid:11507 tgid:11507 ppid:1      task_flags:0x400140 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x1821/0x5740
 schedule+0x164/0x360
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x7f7/0x1550
 lmLogClose+0xb4/0x520
 jfs_umount+0x2fb/0x3d0
 jfs_put_super+0x8c/0x190
 generic_shutdown_super+0x13d/0x2d0
 kill_block_super+0x44/0x90
 deactivate_locked_super+0xbc/0x130
 cleanup_mnt+0x437/0x4d0
 task_work_run+0x1d9/0x270
 exit_to_user_mode_loop+0xf3/0x4d0
 do_syscall_64+0x33e/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9eda99e097
RSP: 002b:00007fffed0a58b8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000064 RCX: 00007f9eda99e097
RDX: 0000000000000200 RSI: 0000000000000009 RDI: 00007fffed0a6a60
RBP: 00007f9edaa321ca R08: 00000000000105a0 R09: 00000000ffffffff
R10: 0000000000000100 R11: 0000000000000206 R12: 00007fffed0a6a60
R13: 00007f9edaa321ca R14: 000055558554c4e8 R15: 00007fffed0a7b30
 </TASK>
INFO: task syz-executor:12059 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:22176 pid:12059 tgid:12059 ppid:1      task_flags:0x400140 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x1821/0x5740
 schedule+0x164/0x360
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x7f7/0x1550
 lmLogClose+0xb4/0x520
 jfs_umount+0x2fb/0x3d0
 jfs_put_super+0x8c/0x190
 generic_shutdown_super+0x13d/0x2d0
 kill_block_super+0x44/0x90
 deactivate_locked_super+0xbc/0x130
 cleanup_mnt+0x437/0x4d0
 task_work_run+0x1d9/0x270
 exit_to_user_mode_loop+0xf3/0x4d0
 do_syscall_64+0x33e/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff88739e097
RSP: 002b:00007ffea9c26028 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007ff8874321ca RCX: 00007ff88739e097
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffea9c260e0
RBP: 00007ffea9c260e0 R08: 00007ffea9c270e0 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffea9c27170
R13: 00007ff8874321ca R14: 0000000000047868 R15: 00007ffea9c271b0
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/35:
 #0: ffffffff8e95cd60 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by getty/5436:
 #0: ffff8881769070a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc900034762e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45c/0x13a0
2 locks held by syz-executor/10253:
 #0: ffff8881768280d8 (&type->s_umount_key#88){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
 #1: ffffffff8edf8480 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb4/0x520
2 locks held by syz-executor/11507:
 #0: ffff8881159200d8 (&type->s_umount_key#88){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
 #1: ffffffff8edf8480 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb4/0x520
2 locks held by syz-executor/12059:
 #0: ffff888173fd60d8 (&type->s_umount_key#88){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
 #1: ffffffff8edf8480 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb4/0x520
2 locks held by syz-executor/12915:
 #0: ffff8881b94000d8 (&type->s_umount_key#88){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
 #1: ffffffff8edf8480 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb4/0x520
1 lock held by syz.8.901/13239:
 #0: ffff8881768280d8 (&type->s_umount_key#88){++++}-{4:4}, at: super_lock+0x289/0x3d0
2 locks held by syz-executor/13417:
 #0: ffff8881ad26e0d8 (&type->s_umount_key#88){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
 #1: ffffffff8edf8480 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb4/0x520
2 locks held by syz-executor/13572:
 #0: ffff88811574c0d8 (&type->s_umount_key#88){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
 #1: ffffffff8edf8480 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb4/0x520
2 locks held by syz-executor/13706:
 #0: ffff888112aec0d8 (&type->s_umount_key#88){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
 #1: ffffffff8edf8480 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb4/0x520
2 locks held by syz-executor/14231:
 #0: ffff8881b050a0d8 (&type->s_umount_key#88){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
 #1: ffffffff8edf8480 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb4/0x520
1 lock held by syz.3.1199/14706:
 #0: ffff888173fd60d8 (&type->s_umount_key#88){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
1 lock held by syz-executor/14970:
 #0: ffffffff8e963068 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x38d/0x770
1 lock held by syz.6.1272/15301:
2 locks held by dhcpcd/15308:
 #0: ffff88801e182260 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x33/0xe10
 #1: ffffffff8e963068 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x2d0/0x770

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

NMI backtrace for cpu 1
CPU: 1 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/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 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 5533 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:native_apic_msr_write+0x39/0x50
Code: 74 2a 83 ff 30 74 25 eb 10 81 ff d0 00 00 00 74 1b 81 ff e0 00 00 00 74 13 c1 ef 04 81 c7 00 08 00 00 89 f9 89 f0 31 d2 0f 30 <66> 90 e9 c0 47 36 0a cc 89 f6 31 d2 e9 a6 62 7a 03 66 0f 1f 44 00
RSP: 0018:ffffc9000454fa70 EFLAGS: 00000046
RAX: 000000000000ffeb RBX: ffff888121023e40 RCX: 0000000000000838
RDX: 0000000000000000 RSI: 000000000000ffeb RDI: 0000000000000838
RBP: ffffc9000454fb40 R08: ffffffff81b2e285 R09: ffffffff9a48d588
R10: 0000000000000003 R11: ffffffff817446c0 R12: 000000000000ffeb
R13: dffffc0000000000 R14: 0000000010000d6b R15: 0000000000000020
FS:  000055558c40e540(0000) GS:ffff88818dc8d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1b58d45000 CR3: 0000000114eae000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 lapic_next_event+0x11/0x20
 clockevents_program_event+0x385/0x630
 hrtimer_start_range_ns+0x940/0xed0
 do_nanosleep+0x189/0x620
 hrtimer_nanosleep+0x18f/0x3a0
 __se_sys_clock_nanosleep+0x35b/0x3b0
 do_syscall_64+0x15f/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f05cff57fd7
Code: 48 89 fa 4c 89 df e8 a8 56 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
RSP: 002b:00007ffd03b21c60 EFLAGS: 00000202 ORIG_RAX: 00000000000000e6
RAX: ffffffffffffffda RBX: 000055558c40e540 RCX: 00007f05cff57fd7
RDX: 00007ffd03b21ca0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007ffd03b22180 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004
R13: 00007ffd03b21cdc R14: 00007ffd03b21d70 R15: 0000000000000000
 </TASK>
