INFO: task jfsCommit:117 blocked 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:26888 pid:117   tgid:117   ppid:2      task_flags:0x200040 flags:0x00080000
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 io_schedule+0x80/0xd0
 lock_metapage+0x1f3/0x400
 __get_metapage+0x497/0xde0
 diIAGRead+0xce/0x140
 diFree+0x983/0x2c40
 jfs_evict_inode+0x331/0x440
 evict+0x504/0x9c0
 jfs_lazycommit+0x43f/0xa90
 kthread+0x711/0x8a0
 ret_from_fork+0x4bc/0x870
 ret_from_fork_asm+0x1a/0x30
 </TASK>

Showing all locks held in the system:
2 locks held by kworker/u10:0/27:
 #0: ffff888100089948 ((wq_completion)events_unbound#2){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc90000a27ba0 (connector_reaper_work){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
3 locks held by kworker/u9:1/32:
1 lock held by khungtaskd/35:
 #0: ffffffff8df3d6a0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by jfsCommit/117:
 #0: ffff8881105d8920 (&(imap->im_aglock[index])){+.+.}-{4:4}, at: diFree+0x29f/0x2c40
 #1: ffff8881175fe5f0 (&jfs_ip->rdwrlock/1){.+.+}-{4:4}, at: diFree+0x2bd/0x2c40
5 locks held by kworker/1:2/795:
 #0: ffff8881607d1548 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc90003377ba0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
 #2: ffff88810aa84198 (&dev->mutex){....}-{4:4}, at: hub_event+0x184/0x4a20
 #3: ffff88810aa87518 (&port_dev->status_lock){+.+.}-{4:4}, at: hub_event+0x21b8/0x4a20
 #4: ffff88816ebcbd68 (hcd->address0_mutex){+.+.}-{4:4}, at: hub_event+0x21e5/0x4a20
2 locks held by getty/5638:
 #0: ffff888112abe0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc9000357b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400
2 locks held by kworker/u9:4/6123:
 #0: ffff888168f46948 ((wq_completion)iou_exit){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc9000705fba0 ((work_completion)(&ctx->exit_work)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
2 locks held by syz-executor/7521:
 #0: ffff8881103d20e0 (&type->s_umount_key#31){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
 #1: ffff88816c4c0820 (&bdi->wb_switch_rwsem){+.+.}-{4:4}, at: sync_inodes_sb+0x19f/0xa10
1 lock held by syz.6.321/7951:
 #0: ffff8881103d20e0 (&type->s_umount_key#31){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.2.402/8827:
 #0: ffff8881103d20e0 (&type->s_umount_key#31){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.7.721/10514:
 #0: ffff8881103d20e0 (&type->s_umount_key#31){++++}-{4:4}, at: super_lock+0x25c/0x3b0

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

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+0x189/0x250
 nmi_cpu_backtrace+0x39e/0x3d0
 nmi_trigger_cpumask_backtrace+0x17a/0x300
 watchdog+0xf60/0xfa0
 kthread+0x711/0x8a0
 ret_from_fork+0x4bc/0x870
 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: 795 Comm: kworker/1:2 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: usb_hub_wq hub_event
RIP: 0010:asm_sysvec_apic_timer_interrupt+0x0/0x20
Code: 36 76 47 0a e9 61 06 00 00 90 f3 0f 1e fa 0f 1f 00 fc 6a ff e8 11 05 00 00 48 89 c4 48 89 e7 e8 46 75 47 0a e9 41 06 00 00 90 <f3> 0f 1e fa 0f 1f 00 fc 6a ff e8 f1 04 00 00 48 89 c4 48 89 e7 e8
RSP: 0018:ffffc900033772f8 EFLAGS: 00000083
RAX: ffffffff81a02aa5 RBX: ffffffff81a028fe RCX: 0000000000100000
RDX: ffffc900278d5000 RSI: 0000000000010600 RDI: ffffffff8df31680
RBP: ffffc90003377430 R08: ffffffff8f7cf777 R09: 1ffffffff1ef9eee
R10: dffffc0000000000 R11: fffffbfff1ef9eef R12: 0000000000000000
R13: 0000000000000023 R14: 0000000000000200 R15: 1ffff9200066ee68
FS:  0000000000000000(0000) GS:ffff8882a9f34000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe1915b6ad8 CR3: 00000000115f6000 CR4: 00000000000006f0
Call Trace:
 <TASK>
RIP: 0010:vprintk_emit+0x49d/0x590
Code: 0f 84 34 ff ff ff e8 82 ee 1f 00 fb eb 44 e8 7a ee 1f 00 e8 75 67 a7 09 4d 85 f6 74 94 e8 6b ee 1f 00 fb 48 c7 c7 80 16 f3 8d <31> f6 ba 01 00 00 00 31 c9 41 b8 01 00 00 00 45 31 c9 53 e8 4b 39
RSP: 0018:ffffc90003377320 EFLAGS: 00000283
 dev_vprintk_emit+0x337/0x3f0
 dev_printk_emit+0xe0/0x130
 _dev_info+0x10a/0x160
 hub_event+0x2c83/0x4a20
 process_scheduled_works+0xae1/0x17b0
 worker_thread+0x8a0/0xda0
 kthread+0x711/0x8a0
 ret_from_fork+0x4bc/0x870
 ret_from_fork_asm+0x1a/0x30
 </TASK>
