Warning: Permanently added '10.128.1.36' (ECDSA) to the list of known hosts.
executing program
[  484.985432][ T4254] loop0: detected capacity change from 0 to 32768
[  484.990032][ T4254] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz-executor164 (4254)
[  484.996287][ T4254] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm
[  484.998427][ T4254] BTRFS warning (device loop0): the 'inode_cache' option is deprecated and has no effect since 5.11
[  485.000648][ T4254] BTRFS info (device loop0): using free space tree
[  485.014749][ T4254] BTRFS info (device loop0): enabling ssd optimizations
[  714.754236][   T28] INFO: task syz-executor164:4254 blocked for more than 143 seconds.
[  714.756109][   T28]       Not tainted 6.1.27-syzkaller #0
[  714.757266][   T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  714.759137][   T28] task:syz-executor164 state:D stack:0     pid:4254  ppid:4253   flags:0x00000009
[  714.761060][   T28] Call trace:
[  714.761739][   T28]  __switch_to+0x320/0x754
[  714.762613][   T28]  __schedule+0xee4/0x1c98
[  714.763623][   T28]  schedule+0xc4/0x170
[  714.764668][   T28]  wait_extent_bit+0x3e8/0x530
[  714.765768][   T28]  lock_extent+0x160/0x1fc
[  714.766664][   T28]  btrfs_page_mkwrite+0x614/0xcac
[  714.767776][   T28]  do_page_mkwrite+0x144/0x37c
[  714.768798][   T28]  wp_page_shared+0x148/0x550
[  714.769866][   T28]  do_wp_page+0xcbc/0xf44
[  714.770869][   T28]  handle_mm_fault+0x1ae8/0x3e9c
[  714.771860][   T28]  do_page_fault+0x634/0xac4
[  714.772745][   T28]  do_mem_abort+0x74/0x200
[  714.773670][   T28]  el1_abort+0x3c/0x5c
[  714.774596][   T28]  el1h_64_sync_handler+0x60/0xac
[  714.775677][   T28]  el1h_64_sync+0x64/0x68
[  714.776581][   T28]  __arch_copy_to_user+0x88/0x234
[  714.777631][   T28]  extent_fiemap+0x1718/0x1b1c
[  714.778748][   T28]  btrfs_fiemap+0x154/0x1c0
[  714.779819][   T28]  do_vfs_ioctl+0x194c/0x26f8
[  714.780808][   T28]  __arm64_sys_ioctl+0xe4/0x1c8
[  714.781874][   T28]  invoke_syscall+0x98/0x2c0
[  714.782859][   T28]  el0_svc_common+0x138/0x258
[  714.783908][   T28]  do_el0_svc+0x64/0x218
[  714.784908][   T28]  el0_svc+0x58/0x168
[  714.785679][   T28]  el0t_64_sync_handler+0x84/0xf0
[  714.786749][   T28]  el0t_64_sync+0x18c/0x190
[  714.787785][   T28] 
[  714.787785][   T28] Showing all locks held in the system:
[  714.789532][   T28] 1 lock held by rcu_tasks_kthre/12:
[  714.790593][   T28]  #0: ffff800015764d30 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4
[  714.792866][   T28] 1 lock held by rcu_tasks_trace/13:
[  714.793912][   T28]  #0: ffff800015765530 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4
[  714.796305][   T28] 1 lock held by khungtaskd/28:
[  714.797345][   T28]  #0: ffff800015764b60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44
[  714.799425][   T28] 2 locks held by getty/3983:
[  714.800408][   T28]  #0: ffff0000d5e44098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c
[  714.802578][   T28]  #1: ffff80001ca202f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1210
[  714.804689][   T28] 4 locks held by syz-executor164/4254:
[  714.805803][   T28]  #0: ffff0000e1839920 (&sb->s_type->i_mutex_key#17){++++}-{3:3}, at: btrfs_inode_lock+0x68/0xe0
[  714.808065][   T28]  #1: ffff0000d6dc1f48 (&mm->mmap_lock){++++}-{3:3}, at: do_page_fault+0x2dc/0xac4
[  714.810148][   T28]  #2: ffff0000dcd9e558 (sb_pagefaults){.+.+}-{0:0}, at: do_page_mkwrite+0x144/0x37c
[  714.812069][   T28]  #3: ffff0000e18397a8 (&ei->i_mmap_lock){.+.+}-{3:3}, at: btrfs_page_mkwrite+0x4bc/0xcac
[  714.814282][   T28] 
[  714.814770][   T28] =============================================
[  714.814770][   T28] 
[  714.816513][   T28] Kernel panic - not syncing: hung_task: blocked tasks
[  714.817956][   T28] CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.1.27-syzkaller #0
[  714.819546][   T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
[  714.821684][   T28] Call trace:
[  714.822368][   T28]  dump_backtrace+0x1c8/0x1f4
[  714.823323][   T28]  show_stack+0x2c/0x3c
[  714.824244][   T28]  dump_stack_lvl+0x108/0x170
[  714.825344][   T28]  dump_stack+0x1c/0x5c
[  714.826237][   T28]  panic+0x300/0x7fc
[  714.827040][   T28]  hung_task_panic+0x0/0x2c
[  714.827950][   T28]  kthread+0x250/0x2d8
[  714.828817][   T28]  ret_from_fork+0x10/0x20
[  714.829805][   T28] SMP: stopping secondary CPUs
[  714.830971][   T28] Kernel Offset: disabled
[  714.831879][   T28] CPU features: 0x00000,02070084,26017203
[  714.833068][   T28] Memory Limit: none
[  715.179548][   T28] Rebooting in 86400 seconds..