Warning: Permanently added '10.128.0.95' (ED25519) to the list of known hosts.
executing program
[  272.777413][ T3984] loop0: detected capacity change from 0 to 32768
[  428.033425][   T27] INFO: task kworker/u4:1:136 blocked for more than 143 seconds.
[  428.035623][   T27]       Not tainted 5.15.152-syzkaller #0
[  428.037094][   T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  428.039403][   T27] task:kworker/u4:1    state:D stack:    0 pid:  136 ppid:     2 flags:0x00000008
[  428.041808][   T27] Workqueue: writeback wb_workfn (flush-7:0)
[  428.044394][   T27] Call trace:
[  428.045243][   T27]  __switch_to+0x308/0x5e8
[  428.046389][   T27]  __schedule+0xf10/0x1e48
[  428.047530][   T27]  schedule+0x11c/0x1c8
[  428.048674][   T27]  schedule_preempt_disabled+0x18/0x2c
[  428.050054][   T27]  __mutex_lock_common+0xba0/0x2154
[  428.051388][   T27]  mutex_lock_nested+0xa4/0xf8
[  428.052612][   T27]  jfs_commit_inode+0x1d4/0x4f8
[  428.054846][   T27]  jfs_write_inode+0x128/0x200
[  428.056140][   T27]  __writeback_single_inode+0x584/0x13a4
[  428.057585][   T27]  writeback_sb_inodes+0x94c/0x1654
[  428.058957][   T27]  __writeback_inodes_wb+0x110/0x39c
[  428.060382][   T27]  wb_writeback+0x410/0xfc8
[  428.061551][   T27]  wb_workfn+0xc44/0x1070
[  428.062631][   T27]  process_one_work+0x790/0x11b8
[  428.064751][   T27]  worker_thread+0x910/0x1034
[  428.065997][   T27]  kthread+0x37c/0x45c
[  428.067040][   T27]  ret_from_fork+0x10/0x20
[  428.068297][   T27] 
[  428.068297][   T27] Showing all locks held in the system:
[  428.070332][   T27] 1 lock held by khungtaskd/27:
[  428.071579][   T27]  #0: ffff800014ae14a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44
[  428.074948][   T27] 4 locks held by kworker/u4:1/136:
[  428.076315][   T27]  #0: ffff0000c21c8138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x66c/0x11b8
[  428.079154][   T27]  #1: ffff80001a357c00 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x6ac/0x11b8
[  428.082300][   T27]  #2: ffff0000c9ca20e0 (&type->s_umount_key#41){.+.+}-{3:3}, at: trylock_super+0x28/0xf8
[  428.085566][   T27]  #3: ffff0000df503008 (&jfs_ip->commit_mutex){+.+.}-{3:3}, at: jfs_commit_inode+0x1d4/0x4f8
[  428.088312][   T27] 2 locks held by getty/3723:
[  428.089497][   T27]  #0: ffff0000d339f098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50
[  428.092004][   T27]  #1: ffff80001a12b2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1204
[  428.095265][   T27] 4 locks held by syz-executor171/3984:
[  428.096691][   T27] 
[  428.097285][   T27] =============================================
[  428.097285][   T27] 
[  428.099487][   T27] Kernel panic - not syncing: hung_task: blocked tasks
[  428.101239][   T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.152-syzkaller #0
[  428.103311][   T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
[  428.105946][   T27] Call trace:
[  428.106832][   T27]  dump_backtrace+0x0/0x530
[  428.108024][   T27]  show_stack+0x2c/0x3c
[  428.109157][   T27]  dump_stack_lvl+0x108/0x170
[  428.110413][   T27]  dump_stack+0x1c/0x58
[  428.111518][   T27]  panic+0x304/0x8b4
[  428.112538][   T27]  hung_task_panic+0x0/0x2c
[  428.113710][   T27]  kthread+0x37c/0x45c
[  428.114773][   T27]  ret_from_fork+0x10/0x20
[  428.115958][   T27] SMP: stopping secondary CPUs
[  428.117232][   T27] Kernel Offset: disabled
[  428.118362][   T27] CPU features: 0x0,000081c1,21302e40
[  428.119791][   T27] Memory Limit: none
[  428.461208][   T27] Rebooting in 86400 seconds..