Warning: Permanently added '10.128.0.106' (ED25519) to the list of known hosts.
executing program
[  171.619129][ T4054] loop0: detected capacity change from 0 to 32768
[  171.675894][ T4054] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  171.678331][ T4054] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  171.690055][ T4054] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[  171.693680][ T1534] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  171.695621][ T1534] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  171.737824][ T1534] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 42ms
[  171.740563][ T1534] gfs2: fsid=syz:syz.0: jid=0: Done
[  171.742257][ T4054] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  428.057064][   T27] INFO: task syz-executor905:4053 blocked for more than 143 seconds.
[  428.059366][   T27]       Not tainted 5.15.184-syzkaller #0
[  428.060917][   T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  428.063238][   T27] task:syz-executor905 state:D stack:    0 pid: 4053 ppid:  4052 flags:0x0000000c
[  428.065650][   T27] Call trace:
[  428.066482][   T27]  __switch_to+0x2f4/0x558
[  428.067723][   T27]  __schedule+0xe00/0x1c0c
[  428.068914][   T27]  schedule+0x11c/0x1c8
[  428.069992][   T27]  schedule_timeout+0x180/0x2c8
[  428.071253][   T27]  gfs2_gl_hash_clear+0x174/0x2cc
[  428.072612][   T27]  gfs2_put_super+0x614/0x6bc
[  428.073830][   T27]  generic_shutdown_super+0x130/0x2f0
[  428.075280][   T27]  kill_block_super+0x70/0xdc
[  428.076537][   T27]  gfs2_kill_sb+0xc0/0xd4
[  428.077737][   T27]  deactivate_locked_super+0xb8/0x13c
[  428.079146][   T27]  deactivate_super+0xf8/0x118
[  428.080429][   T27]  cleanup_mnt+0x3a4/0x458
[  428.081650][   T27]  __cleanup_mnt+0x20/0x30
[  428.082827][   T27]  task_work_run+0x12c/0x1e0
[  428.084098][   T27]  do_notify_resume+0x24b4/0x3128
[  428.085424][   T27]  el0_svc+0xf0/0x1e0
[  428.086517][   T27]  el0t_64_sync_handler+0xcc/0xe4
[  428.087947][   T27]  el0t_64_sync+0x1a0/0x1a4
[  428.089162][   T27] 
[  428.089162][   T27] Showing all locks held in the system:
[  428.091157][   T27] 1 lock held by khungtaskd/27:
[  428.092363][   T27]  #0: ffff8000143211e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44
[  428.094888][   T27] 2 locks held by getty/3796:
[  428.096136][   T27]  #0: ffff0000d4406098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50
[  428.098730][   T27]  #1: ffff80001b7802e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2f0/0xf6c
[  428.101416][   T27] 1 lock held by syz-executor905/4053:
[  428.102881][   T27]  #0: ffff0000c68f80e0 (&type->s_umount_key#41){++++}-{3:3}, at: deactivate_super+0xf0/0x118
[  428.105710][   T27] 
[  428.106312][   T27] =============================================
[  428.106312][   T27] 
[  428.108649][   T27] Kernel panic - not syncing: hung_task: blocked tasks
[  428.110456][   T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.184-syzkaller #0
[  428.112524][   T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  428.115097][   T27] Call trace:
[  428.115952][   T27]  dump_backtrace+0x0/0x43c
[  428.117176][   T27]  show_stack+0x2c/0x3c
[  428.118230][   T27]  __dump_stack+0x30/0x40
[  428.119395][   T27]  dump_stack_lvl+0xf8/0x160
[  428.120690][   T27]  dump_stack+0x1c/0x5c
[  428.121763][   T27]  panic+0x2e4/0x854
[  428.122760][   T27]  hung_task_panic+0x0/0x2c
[  428.123904][   T27]  kthread+0x374/0x454
[  428.125002][   T27]  ret_from_fork+0x10/0x20
[  428.126215][   T27] SMP: stopping secondary CPUs
[  428.127588][   T27] Kernel Offset: disabled
[  428.128694][   T27] CPU features: 0x8,000081c1,21302e40
[  428.130153][   T27] Memory Limit: none
[  428.476424][   T27] Rebooting in 86400 seconds..