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>
INFO: task syz-executor:7462 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:22048 pid:7462  tgid:7462  ppid:1      task_flags:0x400140 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x17d9/0x56c0
 schedule+0x164/0x2b0
 jfs_flush_journal+0x719/0xf50
 jfs_sync_fs+0x7d/0xa0
 sync_filesystem+0x1cf/0x230
 generic_shutdown_super+0x77/0x2d0
 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: 0033:0x7fb34f59e097
RSP: 002b:00007ffc70629558 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007fb34f6322ca RCX: 00007fb34f59e097
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc70629610
RBP: 00007ffc70629610 R08: 0000000000008000 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc7062a6a0
R13: 00007fb34f6322ca R14: 0000000000020a28 R15: 00007ffc7062a6e0
 </TASK>
INFO: task syz.2.209:7808 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.209       state:D stack:28560 pid:7808  tgid:7807  ppid:7404   task_flags:0x400040 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
 super_lock+0x2d6/0x3d0
 __iterate_supers+0x120/0x240
 __ia32_sys_sync+0xa0/0x120
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3ad299ce59
RSP: 002b:00007f3ad380c028 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007f3ad2c15fa0 RCX: 00007f3ad299ce59
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f3ad2c15fa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f3ad2c16038 R14: 00007f3ad2c15fa0 R15: 00007ffd09edac38
 </TASK>
INFO: task syz.2.209:7811 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.209       state:D stack:24776 pid:7811  tgid:7807  ppid:7404   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
 super_lock+0x2d6/0x3d0
 __iterate_supers+0x120/0x240
 __ia32_sys_sync+0xa0/0x120
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3ad299ce59
RSP: 002b:00007f3ad37eb028 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007f3ad2c16090 RCX: 00007f3ad299ce59
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f3ad2c16090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f3ad2c16128 R14: 00007f3ad2c16090 R15: 00007ffd09edac38
 </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: ffff888118ae8910 (&(imap->im_aglock[index])){+.+.}-{4:4}, at: diFree+0x2ee/0x2d00
 #1: ffff88811a0c12e0 (&jfs_ip->rdwrlock/1){.+.+}-{4:4}, at: diFree+0x30c/0x2d00
2 locks held by getty/5442:
 #0: ffff8881737e10a0 (&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
2 locks held by kworker/1:5/5925:
 #0: ffff88823c63b160 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2d/0x160
 #1: ffff88823c624440 (psi_seq){-.-.}-{0:0}, at: psi_task_switch+0x57/0x7d0
1 lock held by syz-executor/7462:
 #0: ffff888116caa0d8 (&type->s_umount_key#96){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
1 lock held by syz.2.209/7808:
 #0: ffff888116caa0d8 (&type->s_umount_key#96){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
1 lock held by syz.2.209/7811:
 #0: ffff888116caa0d8 (&type->s_umount_key#96){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
1 lock held by syz.6.211/7943:
 #0: ffff888116caa0d8 (&type->s_umount_key#96){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
1 lock held by syz.3.217/8370:
 #0: ffff888116caa0d8 (&type->s_umount_key#96){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
1 lock held by syz.3.217/8372:
 #0: ffff888116caa0d8 (&type->s_umount_key#96){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
1 lock held by syz.8.221/8529:
 #0: ffff888116caa0d8 (&type->s_umount_key#96){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
1 lock held by syz.8.221/8531:
 #0: ffff888116caa0d8 (&type->s_umount_key#96){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
1 lock held by syz.1.228/8774:
 #0: ffff888116caa0d8 (&type->s_umount_key#96){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
1 lock held by syz.9.229/8919:
 #0: ffff888116caa0d8 (&type->s_umount_key#96){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
1 lock held by syz.4.231/9052:
 #0: ffff888116caa0d8 (&type->s_umount_key#96){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
1 lock held by syz.4.231/9053:
 #0: ffff888116caa0d8 (&type->s_umount_key#96){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
1 lock held by syz.4.231/9058:
 #0: ffff888116caa0d8 (&type->s_umount_key#96){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
1 lock held by syz.5.235/9270:
 #0: ffff888116caa0d8 (&type->s_umount_key#96){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
1 lock held by syz.6.236/9273:
 #0: ffff888116caa0d8 (&type->s_umount_key#96){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
1 lock held by syz.6.236/9274:
 #0: ffff888116caa0d8 (&type->s_umount_key#96){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
1 lock held by syz.7.237/9372:
 #0: ffff888116caa0d8 (&type->s_umount_key#96){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
1 lock held by syz.0.238/9573:
 #0: ffff888116caa0d8 (&type->s_umount_key#96){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
1 lock held by syz.8.242/9601:
 #0: ffff888116caa0d8 (&type->s_umount_key#96){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
1 lock held by syz.8.242/9604:
 #0: ffff888116caa0d8 (&type->s_umount_key#96){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
1 lock held by syz.3.243/9605:
 #0: ffff888116caa0d8 (&type->s_umount_key#96){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
1 lock held by syz.1.244/9684:
 #0: ffff888116caa0d8 (&type->s_umount_key#96){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
1 lock held by syz.2.247/9799:
 #0: ffff888116caa0d8 (&type->s_umount_key#96){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
1 lock held by syz.9.248/9803:
 #0: ffff888116caa0d8 (&type->s_umount_key#96){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
1 lock held by syz.4.252/9861:
 #0: ffff888116caa0d8 (&type->s_umount_key#96){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
1 lock held by syz.5.254/9944:
 #0: ffff888116caa0d8 (&type->s_umount_key#96){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
1 lock held by syz.5.254/9945:
 #0: ffff888116caa0d8 (&type->s_umount_key#96){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
1 lock held by syz.6.257/9955:
 #0: ffff888116caa0d8 (&type->s_umount_key#96){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
1 lock held by syz.7.261/10031:
 #0: ffff888116caa0d8 (&type->s_umount_key#96){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
1 lock held by syz.8.263/10117:
 #0: ffff888116caa0d8 (&type->s_umount_key#96){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
1 lock held by syz.8.263/10118:
 #0: ffff888116caa0d8 (&type->s_umount_key#96){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
1 lock held by syz.8.263/10119:
 #0: ffff888116caa0d8 (&type->s_umount_key#96){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
1 lock held by syz.0.265/10123:
 #0: ffff888116caa0d8 (&type->s_umount_key#96){++++}-{4:4}, at: super_lock+0x2d6/0x3d0

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

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/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: 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: 4c 74 02 e9 13 05 03 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 53 2a 13 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:ffffc90000197e40 EFLAGS: 00000206
RAX: 000000000021eabd RBX: ffffffff819aa450 RCX: 0000000080000001
RDX: 0000000000000001 RSI: ffffffff8dfe5ea1 RDI: ffffffff8c2ab880
RBP: ffffc90000197f10 R08: ffff88823c6338db R09: 1ffff110478c671b
R10: dffffc0000000000 R11: ffffed10478c671c R12: 0000000000000000
R13: 1ffff1102c09d000 R14: 1ffff92000032fd0 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8882a9218000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000564381c2c278 CR3: 0000000115204000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 default_idle+0x9/0x20
 default_idle_call+0x72/0xb0
 do_idle+0x2e0/0x540
 cpu_startup_entry+0x43/0x60
 start_secondary+0x101/0x110
 common_startup_64+0x13e/0x157
 </TASK>
