Warning: Permanently added '10.128.0.250' (ED25519) to the list of known hosts.
executing program
[  128.861556][ T4050] loop0: detected capacity change from 0 to 32768
[  128.914736][ T4050] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  128.917190][ T4050] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  128.929993][ T4050] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[  128.934294][   T25] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  128.936736][   T25] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  128.967663][   T25] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 30ms
[  128.972389][   T25] gfs2: fsid=syz:syz.0: jid=0: Done
[  128.974160][ T4050] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  284.666055][   T27] INFO: task syz-executor195:4049 blocked for more than 143 seconds.
[  284.668429][   T27]       Not tainted 5.15.185-syzkaller #0
[  284.669958][   T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  284.672288][   T27] task:syz-executor195 state:D stack:    0 pid: 4049 ppid:  4048 flags:0x00000004
[  284.674704][   T27] Call trace:
[  284.675524][   T27]  __switch_to+0x2f4/0x558
[  284.676760][   T27]  __schedule+0xe00/0x1c0c
[  284.677963][   T27]  schedule+0x11c/0x1c8
[  284.679106][   T27]  schedule_timeout+0x180/0x2c8
[  284.680405][   T27]  gfs2_gl_hash_clear+0x174/0x2cc
[  284.681765][   T27]  gfs2_put_super+0x614/0x6bc
[  284.682983][   T27]  generic_shutdown_super+0x130/0x2f0
[  284.684448][   T27]  kill_block_super+0x70/0xdc
[  284.685661][   T27]  gfs2_kill_sb+0xc0/0xd4
[  284.686889][   T27]  deactivate_locked_super+0xb8/0x13c
[  284.688336][   T27]  deactivate_super+0xf8/0x118
[  284.689605][   T27]  cleanup_mnt+0x3a4/0x458
[  284.690725][   T27]  __cleanup_mnt+0x20/0x30
[  284.691901][   T27]  task_work_run+0x12c/0x1e0
[  284.693131][   T27]  do_notify_resume+0x24b4/0x3128
[  284.694564][   T27]  el0_svc+0xf0/0x1e0
[  284.695710][   T27]  el0t_64_sync_handler+0xcc/0xe4
[  284.697139][   T27]  el0t_64_sync+0x1a0/0x1a4
[  284.698338][   T27] 
[  284.698338][   T27] Showing all locks held in the system:
[  284.700312][   T27] 1 lock held by khungtaskd/27:
[  284.701568][   T27]  #0: ffff8000143311e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44
[  284.704040][   T27] 2 locks held by getty/3807:
[  284.705237][   T27]  #0: ffff0000d333b098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50
[  284.707911][   T27]  #1: ffff80001bd3d2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2f0/0xf6c
[  284.710588][   T27] 1 lock held by syz-executor195/4049:
[  284.712045][   T27]  #0: ffff0000c26240e0 (&type->s_umount_key#41){++++}-{3:3}, at: deactivate_super+0xf0/0x118
[  284.714851][   T27] 
[  284.715527][   T27] =============================================
[  284.715527][   T27] 
[  284.717924][   T27] Kernel panic - not syncing: hung_task: blocked tasks
[  284.719735][   T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.15.185-syzkaller #0
[  284.721776][   T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  284.724443][   T27] Call trace:
[  284.725303][   T27]  dump_backtrace+0x0/0x43c
[  284.726460][   T27]  show_stack+0x2c/0x3c
[  284.727582][   T27]  __dump_stack+0x30/0x40
[  284.728771][   T27]  dump_stack_lvl+0xf8/0x160
[  284.729996][   T27]  dump_stack+0x1c/0x5c
[  284.731102][   T27]  panic+0x2e4/0x854
[  284.732138][   T27]  hung_task_panic+0x0/0x2c
[  284.733335][   T27]  kthread+0x374/0x454
[  284.734451][   T27]  ret_from_fork+0x10/0x20
[  284.735583][   T27] SMP: stopping secondary CPUs
[  284.736875][   T27] Kernel Offset: disabled
[  284.738014][   T27] CPU features: 0x8,000081c1,21302e40
[  284.739462][   T27] Memory Limit: none
[  285.047754][   T27] Rebooting in 86400 seconds..