DUID 00:04:17:4d:40:87:6e:bf:2d:0e:65:92:c1:2a:fb:91:5f:79
forked to background, child pid 3173
[ 30.995705][ T3174] 8021q: adding VLAN 0 to HW filter on device bond0
[ 31.005863][ T3174] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK
syzkaller
syzkaller login: [ 81.460076][ T7] cfg80211: failed to load regulatory.db
Warning: Permanently added '10.128.1.171' (ED25519) to the list of known hosts.
executing program
[ 672.517033][ T3542] loop0: detected capacity change from 0 to 32768
[ 672.528297][ T3542] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 672.536659][ T3542] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 672.550096][ T3542] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[ 672.559639][ T7] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 672.566464][ T7] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 672.606346][ T7] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 39ms
[ 672.615960][ T7] gfs2: fsid=syz:syz.0: jid=0: Done
[ 672.621671][ T3542] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 859.697815][ T27] INFO: task syz-executor896:3541 blocked for more than 143 seconds.
[ 859.706166][ T27] Not tainted 5.15.139-syzkaller #0
[ 859.712229][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 859.721320][ T27] task:syz-executor896 state:D stack:24864 pid: 3541 ppid: 3539 flags:0x00004002
[ 859.730762][ T27] Call Trace:
[ 859.734063][ T27]
[ 859.737114][ T27] __schedule+0x12c4/0x45b0
[ 859.742053][ T27] ? _raw_spin_unlock_irqrestore+0x8b/0x130
[ 859.748277][ T27] ? _raw_spin_unlock_irqrestore+0xd9/0x130
[ 859.754201][ T27] ? __mod_timer+0xa8e/0xeb0
[ 859.759056][ T27] ? __sched_text_start+0x8/0x8
[ 859.763928][ T27] ? mod_timer_pending+0x20/0x20
[ 859.769059][ T27] ? lockdep_softirqs_off+0x420/0x420
[ 859.774506][ T27] schedule+0x11b/0x1f0
[ 859.778840][ T27] schedule_timeout+0x1b9/0x300
[ 859.784081][ T27] ? console_conditional_schedule+0x40/0x40
[ 859.790152][ T27] ? update_process_times+0x200/0x200
[ 859.795875][ T27] ? prepare_to_wait_event+0x3aa/0x3e0
[ 859.801772][ T27] gfs2_gl_hash_clear+0x1a1/0x310
[ 859.807534][ T27] ? thaw_glock+0x160/0x160
[ 859.812134][ T27] ? gfs2_jindex_free+0x495/0x4f0
[ 859.817200][ T27] ? init_wait_entry+0xd0/0xd0
[ 859.822210][ T27] ? gfs2_setbit+0x630/0x630
[ 859.826843][ T27] gfs2_put_super+0x752/0x7c0
[ 859.831567][ T27] ? gfs2_evict_inode+0x1320/0x1320
[ 859.836805][ T27] generic_shutdown_super+0x136/0x2c0
[ 859.842336][ T27] kill_block_super+0x7a/0xe0
[ 859.847133][ T27] deactivate_locked_super+0xa0/0x110
[ 859.852877][ T27] cleanup_mnt+0x44e/0x500
[ 859.857359][ T27] ? lockdep_hardirqs_on+0x94/0x130
[ 859.862771][ T27] task_work_run+0x129/0x1a0
[ 859.867620][ T27] exit_to_user_mode_loop+0x106/0x130
[ 859.873005][ T27] exit_to_user_mode_prepare+0xb1/0x140
[ 859.878684][ T27] syscall_exit_to_user_mode+0x5d/0x250
[ 859.884346][ T27] do_syscall_64+0x49/0xb0
[ 859.888813][ T27] entry_SYSCALL_64_after_hwframe+0x61/0xcb
[ 859.894732][ T27] RIP: 0033:0x7f8e040fe447
[ 859.899204][ T27] RSP: 002b:00007fff69a5a3a8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[ 859.907846][ T27] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f8e040fe447
[ 859.915835][ T27] RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007fff69a5a460
[ 859.923877][ T27] RBP: 00007fff69a5a460 R08: 0000000000000000 R09: 0000000000000000
[ 859.931890][ T27] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007fff69a5b4d0
[ 859.940113][ T27] R13: 00005555555d56c0 R14: 431bde82d7b634db R15: 00007fff69a5b4f0
[ 859.948494][ T27]
[ 859.952703][ T27]
[ 859.952703][ T27] Showing all locks held in the system:
[ 859.960557][ T27] 1 lock held by khungtaskd/27:
[ 859.965425][ T27] #0: ffffffff8c91f060 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
[ 859.974864][ T27] 1 lock held by klogd/2951:
[ 859.979510][ T27] #0: ffff8880b9b39718 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x26/0x140
[ 859.989563][ T27] 2 locks held by getty/3260:
[ 859.994249][ T27] #0: ffff888024767098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70
[ 860.004188][ T27] #1: ffffc90002bb32e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0
[ 860.014491][ T27] 1 lock held by syz-executor896/3541:
[ 860.019988][ T27] #0: ffff88801a1f20e0 (&type->s_umount_key#43){++++}-{3:3}, at: deactivate_super+0xa9/0xe0
[ 860.030249][ T27]
[ 860.032604][ T27] =============================================
[ 860.032604][ T27]
[ 860.041162][ T27] NMI backtrace for cpu 0
[ 860.045499][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.139-syzkaller #0
[ 860.053472][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
[ 860.063536][ T27] Call Trace:
[ 860.066808][ T27]
[ 860.069740][ T27] dump_stack_lvl+0x1e3/0x2cb
[ 860.074430][ T27] ? io_uring_drop_tctx_refs+0x19d/0x19d
[ 860.080055][ T27] ? panic+0x84d/0x84d
[ 860.084123][ T27] ? nmi_cpu_backtrace+0x23b/0x4a0
[ 860.089297][ T27] nmi_cpu_backtrace+0x46a/0x4a0
[ 860.094231][ T27] ? __wake_up_klogd+0xd5/0x100
[ 860.099106][ T27] ? nmi_trigger_cpumask_backtrace+0x2a0/0x2a0
[ 860.105254][ T27] ? _printk+0xd1/0x111
[ 860.109402][ T27] ? panic+0x84d/0x84d
[ 860.113480][ T27] ? __wake_up_klogd+0xcc/0x100
[ 860.118331][ T27] ? panic+0x84d/0x84d
[ 860.122402][ T27] ? __rcu_read_unlock+0x92/0x100
[ 860.128001][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10
[ 860.134158][ T27] nmi_trigger_cpumask_backtrace+0x181/0x2a0
[ 860.140238][ T27] watchdog+0xe72/0xeb0
[ 860.144632][ T27] kthread+0x3f6/0x4f0
[ 860.148720][ T27] ? hungtask_pm_notify+0x50/0x50
[ 860.153771][ T27] ? kthread_blkcg+0xd0/0xd0
[ 860.158556][ T27] ret_from_fork+0x1f/0x30
[ 860.163609][ T27]
[ 860.166753][ T27] Sending NMI from CPU 0 to CPUs 1:
[ 860.172116][ C1] NMI backtrace for cpu 1 skipped: idling at acpi_idle_do_entry+0x10f/0x340
[ 860.173098][ T27] Kernel panic - not syncing: hung_task: blocked tasks
[ 860.187977][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.139-syzkaller #0
[ 860.196047][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
[ 860.206219][ T27] Call Trace:
[ 860.209506][ T27]
[ 860.212446][ T27] dump_stack_lvl+0x1e3/0x2cb
[ 860.217133][ T27] ? io_uring_drop_tctx_refs+0x19d/0x19d
[ 860.222817][ T27] ? panic+0x84d/0x84d
[ 860.226910][ T27] panic+0x318/0x84d
[ 860.230821][ T27] ? nmi_trigger_cpumask_backtrace+0x221/0x2a0
[ 860.236996][ T27] ? fb_is_primary_device+0xcc/0xcc
[ 860.242207][ T27] ? panic+0x84d/0x84d
[ 860.246564][ T27] ? irq_work_queue+0xcd/0x150
[ 860.251406][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10
[ 860.257513][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10
[ 860.263595][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10
[ 860.269845][ T27] ? nmi_trigger_cpumask_backtrace+0x22a/0x2a0
[ 860.276052][ T27] watchdog+0xeb0/0xeb0
[ 860.280497][ T27] kthread+0x3f6/0x4f0
[ 860.284567][ T27] ? hungtask_pm_notify+0x50/0x50
[ 860.289641][ T27] ? kthread_blkcg+0xd0/0xd0
[ 860.294246][ T27] ret_from_fork+0x1f/0x30
[ 860.299267][ T27]
[ 860.302541][ T27] Kernel Offset: disabled
[ 860.307156][ T27] Rebooting in 86400 seconds..