Warning: Permanently added '10.128.0.206' (ED25519) to the list of known hosts.
executing program
[  109.570908][ T4043] loop0: detected capacity change from 0 to 32768
[  109.670557][ T4043] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  109.672765][ T4043] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  109.681363][ T4043] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[  109.685281][ T1961] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  109.687171][ T1961] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  109.718904][ T1961] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 31ms
[  109.721193][ T1961] gfs2: fsid=syz:syz.0: jid=0: Done
[  109.722809][ T4043] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  284.667482][   T27] INFO: task syz-executor175:4042 blocked for more than 143 seconds.
[  284.669705][   T27]       Not tainted 5.15.179-syzkaller #0
[  284.671174][   T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  284.673466][   T27] task:syz-executor175 state:D stack:    0 pid: 4042 ppid:  4040 flags:0x0000000c
[  284.675996][   T27] Call trace:
[  284.676856][   T27]  __switch_to+0x308/0x588
[  284.678143][   T27]  __schedule+0xf10/0x1e48
[  284.679299][   T27]  schedule+0x11c/0x1c8
[  284.680363][   T27]  schedule_timeout+0x1d8/0x344
[  284.681655][   T27]  gfs2_gl_hash_clear+0x180/0x2f4
[  284.682904][   T27]  gfs2_put_super+0x5e4/0x684
[  284.684384][   T27]  generic_shutdown_super+0x130/0x2f0
[  284.685764][   T27]  kill_block_super+0x70/0xdc
[  284.686983][   T27]  gfs2_kill_sb+0xc0/0xd4
[  284.688272][   T27]  deactivate_locked_super+0xb8/0x13c
[  284.689667][   T27]  deactivate_super+0x108/0x128
[  284.691028][   T27]  cleanup_mnt+0x3c0/0x474
[  284.692175][   T27]  __cleanup_mnt+0x20/0x30
[  284.693400][   T27]  task_work_run+0x130/0x1e4
[  284.694577][   T27]  do_notify_resume+0x262c/0x32b8
[  284.695887][   T27]  el0_svc+0xfc/0x1f0
[  284.696938][   T27]  el0t_64_sync_handler+0x84/0xe4
[  284.698430][   T27]  el0t_64_sync+0x1a0/0x1a4
[  284.699572][   T27] 
[  284.699572][   T27] Showing all locks held in the system:
[  284.701641][   T27] 1 lock held by khungtaskd/27:
[  284.702863][   T27]  #0: ffff800014d41b60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44
[  284.705472][   T27] 2 locks held by getty/3788:
[  284.706712][   T27]  #0: ffff0000d478b098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50
[  284.709435][   T27]  #1: ffff80001d6ce2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1204
[  284.712156][   T27] 1 lock held by syz-executor175/4042:
[  284.713701][   T27]  #0: ffff0000cd2ea0e0 (&type->s_umount_key#41){++++}-{3:3}, at: deactivate_super+0x100/0x128
[  284.716481][   T27] 
[  284.717107][   T27] =============================================
[  284.717107][   T27] 
[  284.719460][   T27] Kernel panic - not syncing: hung_task: blocked tasks
[  284.721232][   T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.179-syzkaller #0
[  284.723406][   T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[  284.726016][   T27] Call trace:
[  284.726857][   T27]  dump_backtrace+0x0/0x530
[  284.728040][   T27]  show_stack+0x2c/0x3c
[  284.729112][   T27]  dump_stack_lvl+0x108/0x170
[  284.730359][   T27]  dump_stack+0x1c/0x58
[  284.731411][   T27]  panic+0x304/0x8bc
[  284.732435][   T27]  hung_task_panic+0x0/0x2c
[  284.733590][   T27]  kthread+0x37c/0x45c
[  284.734745][   T27]  ret_from_fork+0x10/0x20
[  284.735948][   T27] SMP: stopping secondary CPUs
[  284.737268][   T27] Kernel Offset: disabled
[  284.738415][   T27] CPU features: 0x8,000081c1,21302e40
[  284.739823][   T27] Memory Limit: none
[  285.063331][   T27] Rebooting in 86400 seconds..