Warning: Permanently added '10.128.1.141' (ED25519) to the list of known hosts.
executing program
[  624.381303][ T4063] loop0: detected capacity change from 0 to 32768
[  624.492248][ T4063] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[  624.494547][ T4063] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[  624.503112][ T4063] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[  624.507232][    T7] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[  624.509167][    T7] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[  624.537327][    T7] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 28ms
[  624.539761][    T7] gfs2: fsid=syz:syz.0: jid=0: Done
[  624.541394][ T4063] gfs2: fsid=syz:syz.0: first mount done, others may mount
[  858.109146][   T27] INFO: task syz-executor236:4062 blocked for more than 143 seconds.
[  858.111387][   T27]       Not tainted 5.15.179-syzkaller #0
[  858.112889][   T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  858.115094][   T27] task:syz-executor236 state:D stack:    0 pid: 4062 ppid:  4060 flags:0x0000000c
[  858.117523][   T27] Call trace:
[  858.118373][   T27]  __switch_to+0x308/0x588
[  858.119807][   T27]  __schedule+0xf10/0x1e48
[  858.120998][   T27]  schedule+0x11c/0x1c8
[  858.122031][   T27]  schedule_timeout+0x1d8/0x344
[  858.123267][   T27]  gfs2_gl_hash_clear+0x180/0x2f4
[  858.124561][   T27]  gfs2_put_super+0x5e4/0x684
[  858.125811][   T27]  generic_shutdown_super+0x130/0x2f0
[  858.127290][   T27]  kill_block_super+0x70/0xdc
[  858.128493][   T27]  gfs2_kill_sb+0xc0/0xd4
[  858.129731][   T27]  deactivate_locked_super+0xb8/0x13c
[  858.131169][   T27]  deactivate_super+0x108/0x128
[  858.132412][   T27]  cleanup_mnt+0x3c0/0x474
[  858.133556][   T27]  __cleanup_mnt+0x20/0x30
[  858.134729][   T27]  task_work_run+0x130/0x1e4
[  858.135952][   T27]  do_notify_resume+0x262c/0x32b8
[  858.137250][   T27]  el0_svc+0xfc/0x1f0
[  858.138257][   T27]  el0t_64_sync_handler+0x84/0xe4
[  858.139677][   T27]  el0t_64_sync+0x1a0/0x1a4
[  858.140852][   T27] 
[  858.140852][   T27] Showing all locks held in the system:
[  858.142893][   T27] 1 lock held by khungtaskd/27:
[  858.144141][   T27]  #0: ffff800014d41b60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44
[  858.146645][   T27] 2 locks held by getty/3792:
[  858.147826][   T27]  #0: ffff0000d43b8098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50
[  858.150412][   T27]  #1: ffff80001d6ce2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1204
[  858.153178][   T27] 1 lock held by syz-executor236/4062:
[  858.154677][   T27]  #0: ffff0000d790a0e0 (&type->s_umount_key#41){++++}-{3:3}, at: deactivate_super+0x100/0x128
[  858.157438][   T27] 
[  858.158003][   T27] =============================================
[  858.158003][   T27] 
[  858.160355][   T27] Kernel panic - not syncing: hung_task: blocked tasks
[  858.162101][   T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.15.179-syzkaller #0
[  858.164209][   T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[  858.166795][   T27] Call trace:
[  858.167638][   T27]  dump_backtrace+0x0/0x530
[  858.168800][   T27]  show_stack+0x2c/0x3c
[  858.169942][   T27]  dump_stack_lvl+0x108/0x170
[  858.171192][   T27]  dump_stack+0x1c/0x58
[  858.172312][   T27]  panic+0x304/0x8bc
[  858.173390][   T27]  hung_task_panic+0x0/0x2c
[  858.174585][   T27]  kthread+0x37c/0x45c
[  858.175680][   T27]  ret_from_fork+0x10/0x20
[  858.176900][   T27] SMP: stopping secondary CPUs
[  858.178234][   T27] Kernel Offset: disabled
[  858.179438][   T27] CPU features: 0x8,000081c1,21302e40
[  858.180863][   T27] Memory Limit: none
[  858.506721][   T27] Rebooting in 86400 seconds..