INFO: task jfsCommit:115 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:27064 pid:115   tgid:115   ppid:2      task_flags:0x200040 flags:0x00080000
Call Trace:
 <TASK>
 __schedule+0x17b4/0x5680
 schedule+0x164/0x360
 io_schedule+0x7f/0xd0
 lock_metapage+0x1ff/0x400
 __get_metapage+0x49a/0xe20
 diIAGRead+0xce/0x140
 diFree+0x9e1/0x2ca0
 jfs_evict_inode+0x331/0x440
 evict+0x61e/0xb10
 jfs_lazycommit+0x43d/0xaa0
 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: ffffffff8e95caa0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by jfsCommit/115:
 #0: ffff8881b8130910 (&(imap->im_aglock[index])){+.+.}-{4:4}, at: diFree+0x2ec/0x2ca0
 #1: ffff88819dc2b670 (&jfs_ip->rdwrlock/1){++++}-{4:4}, at: diFree+0x30a/0x2ca0
2 locks held by getty/5630:
 #0: ffff88811806a0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc9000346b2e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45c/0x13a0
1 lock held by syz-executor/21562:
 #0: ffffffff8e962da8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x2d0/0x770

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

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+0xfaa/0x1000
 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: 20685 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:__sanitizer_cov_trace_pc+0x17/0x70
Code: 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 08 18 79 11 65 8b 15 29 18 79 11 <81> e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75 35 83 b9 cc 16 00 00
RSP: 0018:ffffc90006987268 EFLAGS: 00000246
RAX: ffffffff823b08ef RBX: 000000000018a16b RCX: ffff888192408000
RDX: 0000000080000002 RSI: ffffffff8c282c60 RDI: 000000000018a16b
RBP: 0000000000000000 R08: ffffffff823b20c6 R09: ffffffff8e95caa0
R10: dffffc0000000000 R11: fffff94000c50b59 R12: 000000000018a16b
R13: dffffc0000000000 R14: 0000000000000000 R15: 000000000018a16b
FS:  00005555799e4500(0000) GS:ffff8882a923d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa673b456b8 CR3: 000000018a834000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 page_ext_lookup+0x15f/0x180
 page_table_check_set+0x214/0x510
 copy_pmd_range+0x486a/0x5970
 copy_page_range+0xbe8/0x11f0
 dup_mmap+0xf40/0x1d90
 copy_mm+0x13b/0x4a0
 copy_process+0x1f1c/0x4450
 kernel_clone+0x284/0x8f0
 __x64_sys_clone+0x1b6/0x230
 do_syscall_64+0x15f/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa672dc5852
Code: 89 e7 e8 71 8b f7 ff 45 31 c0 31 d2 31 f6 64 48 8b 04 25 10 00 00 00 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 66 89 c5 85 c0 75 3b 64 48 8b 04 25 10 00 00
RSP: 002b:00007fffe27b2640 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007fffe27b2640 RCX: 00007fa672dc5852
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 00007fffe27b27cc R08: 0000000000000000 R09: 0000000000000001
R10: 00005555799e47d0 R11: 0000000000000246 R12: 0000000000000001
R13: 00000000000927c0 R14: 00000000000a8cdf R15: 00007fffe27b2820
 </TASK>
