Warning: Permanently added '10.128.0.240' (ED25519) to the list of known hosts.
executing program
[  163.596861][ T4040] loop0: detected capacity change from 0 to 32768
[  163.685327][ T4040] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  163.687088][ T4040] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  163.695096][ T4040] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[  163.698525][ T1534] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  163.699983][ T1534] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  163.729833][ T1534] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 29ms
[  163.732809][ T1534] gfs2: fsid=syz:syz.0: jid=0: Done
[  163.734270][ T4040] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  428.022315][   T27] INFO: task syz-executor722:4039 blocked for more than 143 seconds.
[  428.024197][   T27]       Not tainted 5.15.173-syzkaller #0
[  428.025508][   T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  428.027204][   T27] task:syz-executor722 state:D stack:    0 pid: 4039 ppid:  4037 flags:0x0000000c
[  428.029077][   T27] Call trace:
[  428.029746][   T27]  __switch_to+0x308/0x5e8
[  428.030833][   T27]  __schedule+0xf10/0x1e48
[  428.031737][   T27]  schedule+0x11c/0x1c8
[  428.032655][   T27]  schedule_timeout+0x1d8/0x344
[  428.033746][   T27]  gfs2_gl_hash_clear+0x180/0x2f4
[  428.034803][   T27]  gfs2_put_super+0x5e4/0x684
[  428.035870][   T27]  generic_shutdown_super+0x130/0x2f0
[  428.037004][   T27]  kill_block_super+0x70/0xdc
[  428.037992][   T27]  gfs2_kill_sb+0xc0/0xd4
[  428.038930][   T27]  deactivate_locked_super+0xb8/0x13c
[  428.040091][   T27]  deactivate_super+0x108/0x128
[  428.041119][   T27]  cleanup_mnt+0x3c0/0x474
[  428.042122][   T27]  __cleanup_mnt+0x20/0x30
[  428.043039][   T27]  task_work_run+0x130/0x1e4
[  428.044003][   T27]  do_notify_resume+0x262c/0x32b8
[  428.045075][   T27]  el0_svc+0xfc/0x1f0
[  428.045942][   T27]  el0t_64_sync_handler+0x84/0xe4
[  428.047048][   T27]  el0t_64_sync+0x1a0/0x1a4
[  428.047982][   T27] 
[  428.047982][   T27] Showing all locks held in the system:
[  428.049646][   T27] 1 lock held by khungtaskd/27:
[  428.050675][   T27]  #0: ffff800014d322e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44
[  428.052783][   T27] 1 lock held by klogd/3635:
[  428.053736][   T27] 2 locks held by getty/3788:
[  428.054719][   T27]  #0: ffff0000d3967098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50
[  428.056720][   T27]  #1: ffff80001d72b2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1204
[  428.058930][   T27] 1 lock held by syz-executor722/4039:
[  428.060317][   T27]  #0: ffff0000cd2ca0e0 (&type->s_umount_key#41){++++}-{3:3}, at: deactivate_super+0x100/0x128
[  428.062671][   T27] 
[  428.063162][   T27] =============================================
[  428.063162][   T27] 
[  428.064907][   T27] Kernel panic - not syncing: hung_task: blocked tasks
[  428.066408][   T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.173-syzkaller #0
[  428.068044][   T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[  428.070130][   T27] Call trace:
[  428.070820][   T27]  dump_backtrace+0x0/0x530
[  428.071751][   T27]  show_stack+0x2c/0x3c
[  428.072618][   T27]  dump_stack_lvl+0x108/0x170
[  428.073559][   T27]  dump_stack+0x1c/0x58
[  428.074414][   T27]  panic+0x304/0x8bc
[  428.075277][   T27]  hung_task_panic+0x0/0x2c
[  428.076260][   T27]  kthread+0x37c/0x45c
[  428.077117][   T27]  ret_from_fork+0x10/0x20
[  428.078037][   T27] SMP: stopping secondary CPUs
[  428.079125][   T27] Kernel Offset: disabled
[  428.079970][   T27] CPU features: 0x8,000081c1,21302e40
[  428.081152][   T27] Memory Limit: none
[  428.447595][   T27] Rebooting in 86400 seconds..