Warning: Permanently added '10.128.0.48' (ECDSA) to the list of known hosts.
executing program
[  483.541548][ T5961] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=5961 'syz-executor408'
[  483.692930][ T5961] loop0: detected capacity change from 0 to 32768
[  483.697476][ T5961] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 scanned by syz-executor408 (5961)
[  483.704002][ T5961] BTRFS info (device loop0): using crc32c (crc32c-generic) checksum algorithm
[  483.706071][ T5961] BTRFS warning (device loop0): the 'inode_cache' option is deprecated and has no effect since 5.11
[  483.708415][ T5961] BTRFS info (device loop0): using free space tree
[  483.721218][ T5961] BTRFS info (device loop0): enabling ssd optimizations
[  483.722727][ T5961] BTRFS info (device loop0): auto enabling async discard
[  714.730522][   T28] INFO: task syz-executor408:5961 blocked for more than 143 seconds.
[  714.732445][   T28]       Not tainted 6.3.0-rc7-syzkaller-g14f8db1c0f9a #0
[  714.733974][   T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  714.735889][   T28] task:syz-executor408 state:D stack:0     pid:5961  ppid:5960   flags:0x00000001
[  714.737917][   T28] Call trace:
[  714.738664][   T28]  __switch_to+0x320/0x754
[  714.739665][   T28]  __schedule+0x103c/0x1e2c
[  714.740784][   T28]  schedule+0xc4/0x170
[  714.741705][   T28]  wait_extent_bit+0x4cc/0x620
[  714.742737][   T28]  lock_extent+0x19c/0x248
[  714.743696][   T28]  btrfs_page_mkwrite+0x5fc/0xc84
[  714.744764][   T28]  do_page_mkwrite+0x144/0x37c
[  714.745760][   T28]  do_wp_page+0x364/0x28d8
[  714.746754][   T28]  handle_mm_fault+0x1b28/0x3e3c
[  714.747874][   T28]  do_page_fault+0x634/0xac4
[  714.748903][   T28]  do_mem_abort+0x74/0x200
[  714.749936][   T28]  el1_abort+0x3c/0x5c
[  714.750974][   T28]  el1h_64_sync_handler+0x60/0xac
[  714.752113][   T28]  el1h_64_sync+0x64/0x68
[  714.753076][   T28]  __arch_copy_to_user+0x88/0x234
[  714.754217][   T28]  extent_fiemap+0x16c8/0x1a44
[  714.755235][   T28]  btrfs_fiemap+0x154/0x1c0
[  714.756185][   T28]  do_vfs_ioctl+0x194c/0x26f8
[  714.757197][   T28]  __arm64_sys_ioctl+0xe4/0x1c8
[  714.758274][   T28]  invoke_syscall+0x98/0x2c0
[  714.759224][   T28]  el0_svc_common+0x138/0x258
[  714.760330][   T28]  do_el0_svc+0x64/0x198
[  714.761310][   T28]  el0_svc+0x4c/0x15c
[  714.762202][   T28]  el0t_64_sync_handler+0x84/0xf0
[  714.763337][   T28]  el0t_64_sync+0x190/0x194
[  714.764346][   T28] 
[  714.764346][   T28] Showing all locks held in the system:
[  714.766048][   T28] 1 lock held by rcu_tasks_kthre/12:
[  714.767255][   T28]  #0: ffff800015f3f4d0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4
[  714.769553][   T28] 1 lock held by rcu_tasks_trace/13:
[  714.770821][   T28]  #0: ffff800015f3fcd0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4
[  714.773221][   T28] 1 lock held by khungtaskd/28:
[  714.774285][   T28]  #0: ffff800015f3f300 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44
[  714.776409][   T28] 2 locks held by getty/5686:
[  714.777397][   T28]  #0: ffff0000d4ba7098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c
[  714.779493][   T28]  #1: ffff80001acd02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1210
[  714.781761][   T28] 4 locks held by syz-executor408/5961:
[  714.782980][   T28]  #0: ffff0000de769848 (&sb->s_type->i_mutex_key#16){++++}-{3:3}, at: btrfs_inode_lock+0x68/0xe0
[  714.785439][   T28]  #1: ffff0000d9760948 (&mm->mmap_lock){++++}-{3:3}, at: do_page_fault+0x2dc/0xac4
[  714.787462][   T28]  #2: ffff0000c7928558 (sb_pagefaults){.+.+}-{0:0}, at: do_page_mkwrite+0x144/0x37c
[  714.789526][   T28]  #3: ffff0000de7696d0 (&ei->i_mmap_lock){.+.+}-{3:3}, at: btrfs_page_mkwrite+0x4a4/0xc84
[  714.791863][   T28] 
[  714.792353][   T28] =============================================
[  714.792353][   T28] 
[  714.794198][   T28] Kernel panic - not syncing: hung_task: blocked tasks
[  714.795709][   T28] CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.3.0-rc7-syzkaller-g14f8db1c0f9a #0
[  714.797777][   T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
[  714.799861][   T28] Call trace:
[  714.800659][   T28]  dump_backtrace+0x1b8/0x1e4
[  714.801737][   T28]  show_stack+0x2c/0x44
[  714.802701][   T28]  dump_stack_lvl+0xd0/0x124
[  714.803742][   T28]  dump_stack+0x1c/0x28
[  714.804688][   T28]  panic+0x2e0/0x7b8
[  714.805540][   T28]  hung_task_panic+0x0/0x2c
[  714.806505][   T28]  kthread+0x250/0x2d8
[  714.807427][   T28]  ret_from_fork+0x10/0x20
[  714.808403][   T28] SMP: stopping secondary CPUs
[  714.809438][   T28] Kernel Offset: disabled
[  714.810421][   T28] CPU features: 0x000000,20700402,32017203
[  714.811666][   T28] Memory Limit: none
[  715.133351][   T28] Rebooting in 86400 seconds..