forked to background, child pid 3179
no interfaces have a carrier
[ 22.377016][ T3180] 8021q: adding VLAN 0 to HW filter on device bond0
[ 22.386654][ T3180] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK
syzkaller
syzkaller login: [ 75.865745][ T135] cfg80211: failed to load regulatory.db
Warning: Permanently added '10.128.0.148' (ECDSA) to the list of known hosts.
executing program
[ 486.374187][ T3630] loop0: detected capacity change from 0 to 4096
[ 486.396972][ T3630] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: writeback.
[ 715.863284][ T27] INFO: task syz-executor422:3630 blocked for more than 143 seconds.
[ 715.872245][ T27] Not tainted 5.16.0-rc7-syzkaller #0
[ 715.878262][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 715.887011][ T27] task:syz-executor422 state:D stack:26280 pid: 3630 ppid: 3629 flags:0x00004004
[ 715.896368][ T27] Call Trace:
[ 715.899731][ T27]
[ 715.902649][ T27] __schedule+0xa9a/0x4900
[ 715.907264][ T27] ? io_schedule_timeout+0x180/0x180
[ 715.912691][ T27] ? _raw_spin_unlock_irqrestore+0x50/0x70
[ 715.918583][ T27] schedule+0xd2/0x260
[ 715.922701][ T27] io_schedule+0xee/0x170
[ 715.927085][ T27] bit_wait_io+0x12/0xd0
[ 715.931365][ T27] __wait_on_bit_lock+0x121/0x1a0
[ 715.936443][ T27] ? bit_wait+0xd0/0xd0
[ 715.940645][ T27] out_of_line_wait_on_bit_lock+0xd5/0x110
[ 715.946550][ T27] ? __wait_on_bit_lock+0x1a0/0x1a0
[ 715.951782][ T27] ? var_wake_function+0x130/0x130
[ 715.957067][ T27] __sync_dirty_buffer+0x35b/0x3f0
[ 715.962367][ T27] __ext4_handle_dirty_metadata+0x28d/0x720
[ 715.968384][ T27] ? __ext4_journal_get_create_access+0x17e/0x1f0
[ 715.974854][ T27] ext4_convert_inline_data_nolock+0x697/0xe10
[ 715.981002][ T27] ? ext4_destroy_inline_data_nolock+0x580/0x580
[ 715.987435][ T27] ? down_write_killable_nested+0x180/0x180
[ 715.993374][ T27] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70
[ 715.999624][ T27] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70
[ 716.005913][ T27] ? __ext4_journal_start_sb+0x1f1/0x4a0
[ 716.011558][ T27] ext4_convert_inline_data+0x31a/0x490
[ 716.017195][ T27] ? ext4_inline_data_truncate+0xbf0/0xbf0
[ 716.023086][ T27] ? down_write_killable_nested+0x180/0x180
[ 716.028986][ T27] ext4_punch_hole+0x852/0x1110
[ 716.033878][ T27] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70
[ 716.040134][ T27] ? ext4_fc_start_update+0xa2/0x2e0
[ 716.045484][ T27] ext4_fallocate+0x1169/0x41d0
[ 716.050358][ T27] ? lock_release+0x720/0x720
[ 716.055080][ T27] ? ext4_ext_truncate+0x260/0x260
[ 716.060206][ T27] ? ext4_ext_truncate+0x260/0x260
[ 716.065364][ T27] vfs_fallocate+0x48d/0xe10
[ 716.069975][ T27] __x64_sys_fallocate+0xcf/0x140
[ 716.075054][ T27] do_syscall_64+0x35/0xb0
[ 716.079485][ T27] entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 716.085446][ T27] RIP: 0033:0x7f97d2561a89
[ 716.089867][ T27] RSP: 002b:00007fffd75a5bc8 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[ 716.098335][ T27] RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007f97d2561a89
[ 716.106402][ T27] RDX: 0000000000000000 RSI: 0000000100000003 RDI: 0000000000000003
[ 716.114438][ T27] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001
[ 716.122432][ T27] R10: 00000000008001a0 R11: 0000000000000246 R12: 00007fffd75a5bf0
[ 716.130461][ T27] R13: 0000000000000000 R14: 431bde82d7b634db R15: 0000000000000000
[ 716.138528][ T27]
[ 716.141577][ T27]
[ 716.141577][ T27] Showing all locks held in the system:
[ 716.149412][ T27] 1 lock held by khungtaskd/27:
[ 716.154318][ T27] #0: ffffffff8bb83da0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260
[ 716.164326][ T27] 2 locks held by getty/3280:
[ 716.169016][ T27] #0: ffff8880232a7098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80
[ 716.180046][ T27] #1: ffffc90002b962e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcf0/0x1230
[ 716.190219][ T27] 3 locks held by syz-executor422/3630:
[ 716.195838][ T27] #0: ffff88801e092460 (sb_writers#5){.+.+}-{0:0}, at: __x64_sys_fallocate+0xcf/0x140
[ 716.205748][ T27] #1: ffff888073e85550 (mapping.invalidate_lock){++++}-{3:3}, at: ext4_punch_hole+0x84a/0x1110
[ 716.216254][ T27] #2: ffff888073e85088 (&ei->xattr_sem){++++}-{3:3}, at: ext4_convert_inline_data+0x21e/0x490
[ 716.226781][ T27]
[ 716.229105][ T27] =============================================
[ 716.229105][ T27]
[ 716.237567][ T27] NMI backtrace for cpu 0
[ 716.241980][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.16.0-rc7-syzkaller #0
[ 716.250113][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 716.260160][ T27] Call Trace:
[ 716.263428][ T27]
[ 716.266338][ T27] dump_stack_lvl+0xcd/0x134
[ 716.270926][ T27] nmi_cpu_backtrace.cold+0x47/0x144
[ 716.276205][ T27] ? lapic_can_unplug_cpu+0x80/0x80
[ 716.281499][ T27] nmi_trigger_cpumask_backtrace+0x1b3/0x230
[ 716.287481][ T27] watchdog+0xc1d/0xf50
[ 716.291634][ T27] ? reset_hung_task_detector+0x30/0x30
[ 716.297165][ T27] kthread+0x405/0x4f0
[ 716.301256][ T27] ? set_kthread_struct+0x130/0x130
[ 716.306464][ T27] ret_from_fork+0x1f/0x30
[ 716.310880][ T27]
[ 716.314005][ T27] Sending NMI from CPU 0 to CPUs 1:
[ 716.319599][ C1] NMI backtrace for cpu 1 skipped: idling at acpi_idle_do_entry+0x1c6/0x250
[ 716.320670][ T27] Kernel panic - not syncing: hung_task: blocked tasks
[ 716.336177][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.16.0-rc7-syzkaller #0
[ 716.344320][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 716.354357][ T27] Call Trace:
[ 716.357624][ T27]
[ 716.360542][ T27] dump_stack_lvl+0xcd/0x134
[ 716.365131][ T27] panic+0x2b0/0x6dd
[ 716.369017][ T27] ? __warn_printk+0xf3/0xf3
[ 716.373600][ T27] ? lapic_can_unplug_cpu+0x80/0x80
[ 716.378991][ T27] ? preempt_schedule_thunk+0x16/0x18
[ 716.384372][ T27] ? nmi_trigger_cpumask_backtrace+0x196/0x230
[ 716.390522][ T27] ? watchdog.cold+0x130/0x158
[ 716.395279][ T27] watchdog.cold+0x141/0x158
[ 716.399862][ T27] ? reset_hung_task_detector+0x30/0x30
[ 716.405722][ T27] kthread+0x405/0x4f0
[ 716.410153][ T27] ? set_kthread_struct+0x130/0x130
[ 716.415520][ T27] ret_from_fork+0x1f/0x30
[ 716.419945][ T27]
[ 716.424062][ T27] Kernel Offset: disabled
[ 716.428376][ T27] Rebooting in 86400 seconds..