Warning: Permanently added '10.128.0.80' (ED25519) to the list of known hosts.
executing program
[  423.638144][ T4055] loop0: detected capacity change from 0 to 32768
[  423.722266][ T4055] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  423.724373][ T4055] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  423.732894][ T4055] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[  423.736827][   T13] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  423.738659][   T13] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  423.782478][   T13] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 43ms
[  423.786435][   T13] gfs2: fsid=syz:syz.0: jid=0: Done
[  423.787989][ T4055] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  571.379337][   T27] INFO: task syz-executor242:4054 blocked for more than 143 seconds.
[  571.381490][   T27]       Not tainted 5.15.179-syzkaller #0
[  571.382936][   T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  571.385170][   T27] task:syz-executor242 state:D stack:    0 pid: 4054 ppid:  4052 flags:0x0000000c
[  571.387444][   T27] Call trace:
[  571.388244][   T27]  __switch_to+0x308/0x588
[  571.389468][   T27]  __schedule+0xf10/0x1e48
[  571.390663][   T27]  schedule+0x11c/0x1c8
[  571.391747][   T27]  schedule_timeout+0x1d8/0x344
[  571.393032][   T27]  gfs2_gl_hash_clear+0x180/0x2f4
[  571.394258][   T27]  gfs2_put_super+0x5e4/0x684
[  571.395514][   T27]  generic_shutdown_super+0x130/0x2f0
[  571.396824][   T27]  kill_block_super+0x70/0xdc
[  571.397975][   T27]  gfs2_kill_sb+0xc0/0xd4
[  571.399181][   T27]  deactivate_locked_super+0xb8/0x13c
[  571.400552][   T27]  deactivate_super+0x108/0x128
[  571.401770][   T27]  cleanup_mnt+0x3c0/0x474
[  571.402845][   T27]  __cleanup_mnt+0x20/0x30
[  571.403903][   T27]  task_work_run+0x130/0x1e4
[  571.405087][   T27]  do_notify_resume+0x262c/0x32b8
[  571.406393][   T27]  el0_svc+0xfc/0x1f0
[  571.407426][   T27]  el0t_64_sync_handler+0x84/0xe4
[  571.408707][   T27]  el0t_64_sync+0x1a0/0x1a4
[  571.409897][   T27] 
[  571.409897][   T27] Showing all locks held in the system:
[  571.411853][   T27] 1 lock held by khungtaskd/27:
[  571.413038][   T27]  #0: ffff800014d41b60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44
[  571.415600][   T27] 2 locks held by getty/3786:
[  571.416767][   T27]  #0: ffff0000d2a9c098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50
[  571.419214][   T27]  #1: ffff80001d6ce2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1204
[  571.421826][   T27] 1 lock held by syz-executor242/4054:
[  571.423201][   T27]  #0: ffff0000cd9040e0 (&type->s_umount_key#41){++++}-{3:3}, at: deactivate_super+0x100/0x128
[  571.425896][   T27] 
[  571.426474][   T27] =============================================
[  571.426474][   T27] 
[  571.428632][   T27] Kernel panic - not syncing: hung_task: blocked tasks
[  571.430380][   T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.179-syzkaller #0
[  571.432493][   T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[  571.435018][   T27] Call trace:
[  571.435853][   T27]  dump_backtrace+0x0/0x530
[  571.437028][   T27]  show_stack+0x2c/0x3c
[  571.438097][   T27]  dump_stack_lvl+0x108/0x170
[  571.439286][   T27]  dump_stack+0x1c/0x58
[  571.440304][   T27]  panic+0x304/0x8bc
[  571.441305][   T27]  hung_task_panic+0x0/0x2c
[  571.442528][   T27]  kthread+0x37c/0x45c
[  571.443588][   T27]  ret_from_fork+0x10/0x20
[  571.444738][   T27] SMP: stopping secondary CPUs
[  571.445990][   T27] Kernel Offset: disabled
[  571.447100][   T27] CPU features: 0x8,000081c1,21302e40
[  571.448550][   T27] Memory Limit: none
[  571.774940][   T27] Rebooting in 86400 seconds..