INFO: task jfsCommit:110 blocked for more than 143 seconds.
      Not tainted 6.8.0-rc7-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:jfsCommit       state:D stack:26040 pid:110   tgid:110   ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0x177f/0x49a0 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0x149/0x260 kernel/sched/core.c:6817
 io_schedule+0x8c/0x110 kernel/sched/core.c:9023
 __lock_metapage fs/jfs/jfs_metapage.c:50 [inline]
 lock_metapage+0x254/0x370 fs/jfs/jfs_metapage.c:64
 __get_metapage+0x513/0x1050 fs/jfs/jfs_metapage.c:639
 diIAGRead+0xcb/0x140 fs/jfs/jfs_imap.c:2669
 diFree+0xa7e/0x2fb0 fs/jfs/jfs_imap.c:956
 jfs_evict_inode+0x32d/0x440 fs/jfs/inode.c:156
 evict+0x2a8/0x630 fs/inode.c:665
 txUpdateMap+0x829/0x9f0 fs/jfs/jfs_txnmgr.c:2367
 txLazyCommit fs/jfs/jfs_txnmgr.c:2664 [inline]
 jfs_lazycommit+0x47f/0xb70 fs/jfs/jfs_txnmgr.c:2733
 kthread+0x2ef/0x390 kernel/kthread.c:388
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:243
 </TASK>

Showing all locks held in the system:
5 locks held by kworker/u4:1/12:
1 lock held by khungtaskd/29:
 #0: ffffffff8e130be0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
 #0: ffffffff8e130be0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline]
 #0: ffffffff8e130be0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
2 locks held by jfsCommit/109:
 #0: ffff88807a360920 (&(imap->im_aglock[index])){+.+.}-{3:3}, at: diFree+0x37c/0x2fb0 fs/jfs/jfs_imap.c:886
 #1: ffff8880755d66f8 (&jfs_ip->rdwrlock/1){.+.+}-{3:3}, at: diFree+0x398/0x2fb0 fs/jfs/jfs_imap.c:891
2 locks held by jfsCommit/110:
 #0: ffff888070a58920 (&(imap->im_aglock[index])){+.+.}-{3:3}, at: diFree+0x37c/0x2fb0 fs/jfs/jfs_imap.c:886
 #1: ffff8880755d2638 (&jfs_ip->rdwrlock/1){.+.+}-{3:3}, at: diFree+0x398/0x2fb0 fs/jfs/jfs_imap.c:891
2 locks held by getty/4811:
 #0: ffff88802acbf0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
 #1: ffffc900031332f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b4/0x1e10 drivers/tty/n_tty.c:2201
1 lock held by syz-executor.0/5802:
 #0: ffff88806e4ea0e0 (&type->s_umount_key#51){+.+.}-{3:3}, at: __super_lock fs/super.c:56 [inline]
 #0: ffff88806e4ea0e0 (&type->s_umount_key#51){+.+.}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline]
 #0: ffff88806e4ea0e0 (&type->s_umount_key#51){+.+.}-{3:3}, at: deactivate_super+0xb5/0xf0 fs/super.c:504

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

NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.8.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e7/0x2e0 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
 watchdog+0xfaf/0xff0 kernel/hung_task.c:379
 kthread+0x2ef/0x390 kernel/kthread.c:388
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:243
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4490 Comm: syslogd Not tainted 6.8.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
RIP: 0010:check_kcov_mode kernel/kcov.c:184 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:236 [inline]
RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x34/0x90 kernel/kcov.c:304
Code: 8b 15 20 4e 70 7e 65 8b 05 21 4e 70 7e a9 00 01 ff 00 74 10 a9 00 01 00 00 74 5b 83 ba fc 15 00 00 00 74 52 8b 82 d8 15 00 00 <83> f8 03 75 47 48 8b 8a e0 15 00 00 44 8b 8a dc 15 00 00 49 c1 e1
RSP: 0018:ffffc9000d927c50 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffff88802ef45940
RDX: ffff88802ef45940 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff82027639 R09: 1ffff11005c1d2d0
R10: dffffc0000000000 R11: ffffffff81bde890 R12: 00005555c5031901
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88802914c000
FS:  00007f8cb1ef0380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555d00028600 CR3: 000000002df92000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 fsnotify_file_area_perm include/linux/fsnotify.h:117 [inline]
 rw_verify_area+0x109/0x580 fs/read_write.c:381
 vfs_read+0x153/0xb70 fs/read_write.c:467
 ksys_read+0x1a0/0x2c0 fs/read_write.c:619
 do_syscall_64+0xf9/0x240
 entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f8cb2044b6a
Code: 00 3d 00 00 41 00 75 0d 50 48 8d 3d 2d 08 0a 00 e8 ea 7d 01 00 31 c0 e9 07 ff ff ff 64 8b 04 25 18 00 00 00 85 c0 75 1b 0f 05 <48> 3d 00 f0 ff ff 76 6c 48 8b 15 8f a2 0d 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffd7f0c0608 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f8cb2044b6a
RDX: 00000000000000ff RSI: 00005555c5031950 RDI: 0000000000000000
RBP: 00005555c5031910 R08: 0000000000000001 R09: 0000000000000000
R10: 00007f8cb21e33a3 R11: 0000000000000246 R12: 00005555c50319a3
R13: 00005555c5031950 R14: 0000000000000000 R15: 00007f8cb2221a80
 </TASK>