INFO: task jfsCommit:123 blocked in I/O wait for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:jfsCommit       state:D stack:27656 pid:123   tgid:123   ppid:2      task_flags:0x200040 flags:0x00080000
Call Trace:
 <TASK>
 __schedule+0x17d9/0x56c0
 schedule+0x164/0x2b0
 io_schedule+0x7f/0xd0
 lock_metapage+0x1fe/0x400
 __get_metapage+0x47a/0xdf0
 diIAGRead+0xce/0x140
 diFree+0x9dc/0x2d00
 jfs_evict_inode+0x324/0x430
 evict+0x624/0xb50
 jfs_lazycommit+0x44c/0xac0
 kthread+0x388/0x470
 ret_from_fork+0x514/0xb70
 ret_from_fork_asm+0x1a/0x30
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/34:
 #0: ffffffff8e959c60 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by jfsCommit/123:
 #0: ffff88816a7a8910 (&(imap->im_aglock[index])){+.+.}-{4:4}, at: diFree+0x2ee/0x2d00
 #1: ffff8881bc5212e0 (&jfs_ip->rdwrlock/1){.+.+}-{4:4}, at: diFree+0x30c/0x2d00
1 lock held by udevd/5059:
 #0: ffff88810ab49350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xde/0xd70
2 locks held by getty/5440:
 #0: ffff88810c3de0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc900034732e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45a/0x1360
1 lock held by udevd/7286:
1 lock held by syz-executor/7494:
3 locks held by syz-executor/8004:
3 locks held by syz.3.336/8641:
1 lock held by syz.3.336/8694:
 #0: ffffffff8f09c038 (tomoyo_ss){.+.+}-{0:0}, at: tomoyo_mount_permission+0x2b5/0x9e0
2 locks held by dhcpcd/8686:
 #0: ffff88811708e260 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x33/0xe90
 #1: ffffffff8e95ff68 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x38d/0x770

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

NMI backtrace for cpu 1
CPU: 1 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/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 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 51 Comm: kworker/u9:2 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
Workqueue: loop3 loop_workfn
RIP: 0010:__sanitizer_cov_trace_pc+0x4/0x70
Code: 00 00 00 48 8b 3d 24 2a 64 0c 48 89 de 5b e9 53 04 62 00 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa <48> 8b 04 24 65 48 8b 0d c8 19 7a 11 65 8b 15 e9 19 7a 11 81 e2 00
RSP: 0018:ffffc90000bb7638 EFLAGS: 00000297
RAX: ffffffff86186fc8 RBX: 0000000000002000 RCX: ffff888105a95940
RDX: 0000000000000000 RSI: 0000000000002000 RDI: 00000000fffffdef
RBP: ffffc90000bb77b0 R08: ffff88810ae13427 R09: 1ffff110215c2684
R10: dffffc0000000000 R11: ffffed10215c2685 R12: dffffc0000000000
R13: ffff88810ae13410 R14: 0000000000002000 R15: 00000000fffffdef
FS:  0000000000000000(0000) GS:ffff88818dc18000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f738134da08 CR3: 000000016aefa000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 lo_rw_aio+0xca9/0xf20
 loop_process_work+0x61f/0x11c0
 process_scheduled_works+0xa8e/0x14e0
 worker_thread+0xa47/0xfb0
 kthread+0x388/0x470
 ret_from_fork+0x514/0xb70
 ret_from_fork_asm+0x1a/0x30
 </TASK>
