Warning: Permanently added '10.128.0.156' (ED25519) to the list of known hosts.
executing program
[  664.500708][ T4009] loop0: detected capacity change from 0 to 32768
[  664.584381][ T4009] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  664.586419][ T4009] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  664.594613][ T4009] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[  664.598961][ T1952] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  664.600673][ T1952] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  664.640962][ T1952] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 40ms
[  664.643140][ T1952] gfs2: fsid=syz:syz.0: jid=0: Done
[  664.644689][ T4009] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  858.111807][   T27] INFO: task syz-executor353:4008 blocked for more than 143 seconds.
[  858.113886][   T27]       Not tainted 5.15.159-syzkaller #0
[  858.115240][   T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  858.117312][   T27] task:syz-executor353 state:D stack:    0 pid: 4008 ppid:  4006 flags:0x00000004
[  858.119585][   T27] Call trace:
[  858.120439][   T27]  __switch_to+0x308/0x5e8
[  858.121756][   T27]  __schedule+0xf10/0x1e48
[  858.122953][   T27]  schedule+0x11c/0x1c8
[  858.124048][   T27]  schedule_timeout+0x1d8/0x344
[  858.125259][   T27]  gfs2_gl_hash_clear+0x180/0x2f4
[  858.126503][   T27]  gfs2_put_super+0x5e4/0x684
[  858.127640][   T27]  generic_shutdown_super+0x130/0x29c
[  858.128956][   T27]  kill_block_super+0x70/0xdc
[  858.130141][   T27]  gfs2_kill_sb+0xc0/0xd4
[  858.131228][   T27]  deactivate_locked_super+0xb8/0x13c
[  858.132688][   T27]  deactivate_super+0x108/0x128
[  858.133890][   T27]  cleanup_mnt+0x3c0/0x474
[  858.135105][   T27]  __cleanup_mnt+0x20/0x30
[  858.136219][   T27]  task_work_run+0x130/0x1e4
[  858.137385][   T27]  do_notify_resume+0x262c/0x32b8
[  858.138695][   T27]  el0_svc+0xfc/0x1f0
[  858.139733][   T27]  el0t_64_sync_handler+0x84/0xe4
[  858.140947][   T27]  el0t_64_sync+0x1a0/0x1a4
[  858.142063][   T27] 
[  858.142063][   T27] Showing all locks held in the system:
[  858.144005][   T27] 1 lock held by khungtaskd/27:
[  858.145242][   T27]  #0: ffff800014b214a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44
[  858.147724][   T27] 2 locks held by getty/3731:
[  858.148973][   T27]  #0: ffff0000d2b41098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50
[  858.151353][   T27]  #1: ffff80001a3ee2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1204
[  858.154015][   T27] 1 lock held by syz-executor353/4008:
[  858.155316][   T27]  #0: ffff0000c9e060e0 (&type->s_umount_key#41){++++}-{3:3}, at: deactivate_super+0x100/0x128
[  858.157918][   T27] 
[  858.158471][   T27] =============================================
[  858.158471][   T27] 
[  858.160610][   T27] Kernel panic - not syncing: hung_task: blocked tasks
[  858.162407][   T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.159-syzkaller #0
[  858.164361][   T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
[  858.166952][   T27] Call trace:
[  858.167777][   T27]  dump_backtrace+0x0/0x530
[  858.168902][   T27]  show_stack+0x2c/0x3c
[  858.169959][   T27]  dump_stack_lvl+0x108/0x170
[  858.171123][   T27]  dump_stack+0x1c/0x58
[  858.172168][   T27]  panic+0x304/0x8bc
[  858.173157][   T27]  hung_task_panic+0x0/0x2c
[  858.174348][   T27]  kthread+0x37c/0x45c
[  858.175338][   T27]  ret_from_fork+0x10/0x20
[  858.176508][   T27] SMP: stopping secondary CPUs
[  858.177739][   T27] Kernel Offset: disabled
[  858.178828][   T27] CPU features: 0x0,000081c1,21302e40
[  858.180143][   T27] Memory Limit: none
[  858.489976][   T27] Rebooting in 86400 seconds..