DUID 00:04:cd:7d:74:7d:04:96:3f:c0:f2:1a:da:5a:49:b1:9f:fb
forked to background, child pid 4870
[ 33.769727][ T4871] 8021q: adding VLAN 0 to HW filter on device bond0
[ 33.797057][ T4871] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK
syzkaller
syzkaller login: [ 76.205184][ T14] cfg80211: failed to load regulatory.db
Warning: Permanently added '10.128.1.77' (ECDSA) to the list of known hosts.
executing program
[ 482.176429][ T5327] nbd0: detected capacity change from 0 to 18
[ 482.335434][ T48] block nbd0: Receive control failed (result -104)
[ 482.336335][ T5327] block nbd0: shutting down sockets
[ 482.354041][ C0] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
[ 482.363176][ C0] Buffer I/O error on dev nbd0, logical block 0, async page read
[ 482.371149][ T5328] ldm_validate_partition_table(): Disk read failed.
[ 482.377968][ T5328] Dev nbd0: unable to read RDB block 0
executing program
[ 482.383431][ T5328] nbd0: unable to read partition table
[ 482.389344][ T5328] nbd0: partition table beyond EOD, truncated
[ 482.524706][ T5331] nbd0: detected capacity change from 0 to 18
[ 482.617932][ T48] block nbd0: Receive control failed (result -104)
[ 482.625339][ T5331] block nbd0: shutting down sockets
[ 482.634439][ C1] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
[ 482.643477][ C1] Buffer I/O error on dev nbd0, logical block 0, async page read
[ 482.651439][ T5328] ldm_validate_partition_table(): Disk read failed.
[ 482.658106][ T5328] Dev nbd0: unable to read RDB block 0
executing program
[ 482.663572][ T5328] nbd0: unable to read partition table
[ 482.669513][ T5328] nbd0: partition table beyond EOD, truncated
[ 482.734330][ T5333] nbd0: detected capacity change from 0 to 18
[ 482.896462][ T48] block nbd0: Receive control failed (result -104)
[ 513.324528][ T1027] block nbd0: Possible stuck request ffff88801e8e0200: control (read@0,4096B). Runtime 30 seconds
[ 542.813781][ T4657] udevd[4657]: worker [5328] /devices/virtual/block/nbd0 is taking a long time
[ 543.404343][ T1027] block nbd0: Possible stuck request ffff88801e8e0200: control (read@0,4096B). Runtime 60 seconds
[ 573.483954][ T1027] block nbd0: Possible stuck request ffff88801e8e0200: control (read@0,4096B). Runtime 90 seconds
[ 603.564060][ T1027] block nbd0: Possible stuck request ffff88801e8e0200: control (read@0,4096B). Runtime 120 seconds
[ 633.644014][ T1027] block nbd0: Possible stuck request ffff88801e8e0200: control (read@0,4096B). Runtime 150 seconds
executing program
[ 662.971011][ T4657] udevd[4657]: worker [5328] /devices/virtual/block/nbd0 timeout; kill it
[ 662.980182][ T5328] ldm_validate_partition_table(): Disk read failed.
[ 662.983937][ T4657] udevd[4657]: seq 7532 '/devices/virtual/block/nbd0' killed
[ 662.986879][ T5328] Dev nbd0: unable to read RDB block 0
[ 662.999743][ T5328] nbd0: unable to read partition table
[ 663.005539][ T5328] nbd0: partition table beyond EOD, truncated
[ 663.723910][ T1027] block nbd0: Possible stuck request ffff88801e8e0200: control (read@0,4096B). Runtime 180 seconds
[ 693.804003][ T1027] block nbd0: Possible stuck request ffff88801e8e0200: control (read@0,4096B). Runtime 210 seconds
[ 723.884046][ T1027] block nbd0: Possible stuck request ffff88801e8e0200: control (read@0,4096B). Runtime 240 seconds
[ 753.963963][ T1027] block nbd0: Possible stuck request ffff88801e8e0200: control (read@0,4096B). Runtime 270 seconds
[ 784.044017][ T1027] block nbd0: Possible stuck request ffff88801e8e0200: control (read@0,4096B). Runtime 300 seconds
[ 814.123979][ T1027] block nbd0: Possible stuck request ffff88801e8e0200: control (read@0,4096B). Runtime 330 seconds
[ 844.204019][ T1027] block nbd0: Possible stuck request ffff88801e8e0200: control (read@0,4096B). Runtime 360 seconds
[ 859.564347][ T28] INFO: task udevd:5328 blocked for more than 143 seconds.
[ 859.571630][ T28] Not tainted 6.1.0-rc6-next-20221125-syzkaller #0
[ 859.578774][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 859.587544][ T28] task:udevd state:D stack:26296 pid:5328 ppid:4657 flags:0x00004006
[ 859.596952][ T28] Call Trace:
[ 859.600240][ T28]
[ 859.603167][ T28] __schedule+0xb8a/0x5450
[ 859.607855][ T28] ? lockdep_hardirqs_on_prepare+0x410/0x410
[ 859.614082][ T28] ? io_schedule_timeout+0x150/0x150
[ 859.619399][ T28] ? mark_held_locks+0x9f/0xe0
[ 859.624390][ T28] schedule+0xde/0x1b0
[ 859.628487][ T28] io_schedule+0xbe/0x130
[ 859.632813][ T28] folio_wait_bit_common+0x394/0x9b0
[ 859.638748][ T28] ? filemap_get_folios_contig+0xa30/0xa30
[ 859.644788][ T28] ? __filemap_get_folio+0x254/0xd80
[ 859.650101][ T28] ? folio_unlock+0xd0/0xd0
[ 859.654776][ T28] __filemap_get_folio+0xb71/0xd80
[ 859.659914][ T28] ? filemap_add_folio+0x1e0/0x1e0
[ 859.665208][ T28] ? filemap_get_folios+0x700/0x700
[ 859.670448][ T28] truncate_inode_pages_range+0x350/0xec0
[ 859.676412][ T28] ? truncate_inode_partial_folio+0xb90/0xb90
[ 859.682515][ T28] ? _find_next_bit+0x11b/0x140
[ 859.687570][ T28] ? smp_call_function_many_cond+0x47f/0x10a0
[ 859.693672][ T28] ? __brelse+0xa0/0xa0
[ 859.698232][ T28] ? smp_call_on_cpu+0x250/0x250
[ 859.703178][ T28] ? mutex_lock_io_nested+0x11a0/0x11a0
[ 859.708833][ T28] ? __brelse+0xa0/0xa0
[ 859.713022][ T28] blkdev_flush_mapping+0x140/0x2f0
[ 859.718324][ T28] blkdev_put_whole+0xd1/0xf0
[ 859.723020][ T28] blkdev_put+0x22a/0x770
[ 859.727425][ T28] blkdev_close+0x68/0x80
[ 859.731777][ T28] __fput+0x27c/0xa90
[ 859.736105][ T28] ? blkdev_fsync+0xa0/0xa0
[ 859.740634][ T28] task_work_run+0x16f/0x270
[ 859.745294][ T28] ? task_work_cancel+0x30/0x30
[ 859.750176][ T28] ? do_raw_spin_unlock+0x175/0x230
[ 859.755425][ T28] do_exit+0xaa8/0x28d0
[ 859.759606][ T28] ? find_held_lock+0x2d/0x110
[ 859.764443][ T28] ? get_signal+0x88e/0x2440
[ 859.769050][ T28] ? mm_update_next_owner+0x7b0/0x7b0
[ 859.774530][ T28] do_group_exit+0xd4/0x2a0
[ 859.779068][ T28] get_signal+0x21b1/0x2440
[ 859.783573][ T28] ? exit_signals+0x8b0/0x8b0
[ 859.788326][ T28] ? do_sys_openat2+0xa1/0x4c0
[ 859.793178][ T28] arch_do_signal_or_restart+0x79/0x5c0
[ 859.798779][ T28] ? get_sigframe_size+0x10/0x10
[ 859.803861][ T28] ? __x64_sys_openat+0x143/0x1f0
[ 859.808945][ T28] ? __ia32_sys_open+0x1c0/0x1c0
[ 859.813985][ T28] exit_to_user_mode_prepare+0x15f/0x250
[ 859.819718][ T28] syscall_exit_to_user_mode+0x1d/0x50
[ 859.825374][ T28] do_syscall_64+0x46/0xb0
[ 859.829815][ T28] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 859.835916][ T28] RIP: 0033:0x7fe989925697
[ 859.840345][ T28] RSP: 002b:00007ffe5bcbbfb0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
[ 859.848955][ T28] RAX: 0000000000000008 RBX: 000055c481fd2b30 RCX: 00007fe989925697
[ 859.857071][ T28] RDX: 00000000000a0800 RSI: 000055c481fba150 RDI: 00000000ffffff9c
[ 859.865195][ T28] RBP: 000055c481fba150 R08: 0000000000000001 R09: 00007ffe5bde1080
[ 859.873181][ T28] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
[ 859.881316][ T28] R13: 000055c481fb5bf0 R14: 0000000000000001 R15: 000055c481fac910
[ 859.889499][ T28]
[ 859.892544][ T28] INFO: task syz-executor112:5341 blocked for more than 143 seconds.
[ 859.900825][ T28] Not tainted 6.1.0-rc6-next-20221125-syzkaller #0
[ 859.907932][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 859.916636][ T28] task:syz-executor112 state:D stack:28448 pid:5341 ppid:5325 flags:0x00000004
[ 859.926165][ T28] Call Trace:
[ 859.929452][ T28]
[ 859.932410][ T28] __schedule+0xb8a/0x5450
[ 859.936879][ T28] ? lockdep_hardirqs_on_prepare+0x410/0x410
[ 859.942916][ T28] ? static_obj+0xc0/0xc0
[ 859.947339][ T28] ? io_schedule_timeout+0x150/0x150
[ 859.952661][ T28] ? __mutex_lock+0xa43/0x1360
[ 859.957507][ T28] schedule+0xde/0x1b0
[ 859.961602][ T28] schedule_preempt_disabled+0x13/0x20
[ 859.967195][ T28] __mutex_lock+0xa48/0x1360
[ 859.971815][ T28] ? blkdev_get_by_dev.part.0+0x9b/0xb90
[ 859.977531][ T28] ? mutex_lock_io_nested+0x11a0/0x11a0
[ 859.983107][ T28] ? _atomic_dec_and_lock+0x96/0x100
[ 859.988502][ T28] ? disk_block_events+0x21/0x140
[ 859.993612][ T28] blkdev_get_by_dev.part.0+0x9b/0xb90
[ 859.999120][ T28] ? devcgroup_check_permission+0x1aa/0x440
[ 860.005169][ T28] blkdev_get_by_dev+0x6f/0x90
[ 860.009935][ T28] blkdev_open+0x140/0x2c0
[ 860.014408][ T28] do_dentry_open+0x6cc/0x13f0
[ 860.019201][ T28] ? blkdev_close+0x80/0x80
[ 860.023710][ T28] path_openat+0x1bbc/0x2a50
[ 860.028451][ T28] ? path_lookupat+0x840/0x840
[ 860.033394][ T28] do_filp_open+0x1ba/0x410
[ 860.038269][ T28] ? may_open_dev+0xf0/0xf0
[ 860.042802][ T28] ? find_held_lock+0x2d/0x110
[ 860.047653][ T28] ? do_raw_spin_lock+0x124/0x2b0
[ 860.052699][ T28] ? rwlock_bug.part.0+0x90/0x90
[ 860.057709][ T28] ? _raw_spin_unlock+0x28/0x40
[ 860.062589][ T28] ? alloc_fd+0x2d8/0x6d0
[ 860.067112][ T28] do_sys_openat2+0x16d/0x4c0
[ 860.071827][ T28] ? build_open_flags+0x6f0/0x6f0
[ 860.076915][ T28] ? up_write+0x520/0x520
[ 860.081278][ T28] __x64_sys_openat+0x143/0x1f0
[ 860.086220][ T28] ? __ia32_sys_open+0x1c0/0x1c0
[ 860.091192][ T28] ? syscall_enter_from_user_mode+0x26/0xb0
[ 860.097149][ T28] do_syscall_64+0x39/0xb0
[ 860.101583][ T28] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 860.107552][ T28] RIP: 0033:0x7f8b63083c24
[ 860.111981][ T28] RSP: 002b:00007f8b63073e70 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
[ 860.120451][ T28] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8b63083c24
[ 860.128484][ T28] RDX: 0000000000000000 RSI: 00007f8b63073ef0 RDI: 00000000ffffff9c
[ 860.136492][ T28] RBP: 00007f8b63073ef0 R08: 0000000000000000 R09: 00007f8b63074700
[ 860.144697][ T28] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
[ 860.152671][ T28] R13: 00007f8b631181a4 R14: 64626e2f7665642f R15: 0000000000022000
[ 860.160740][ T28]
[ 860.163853][ T28]
[ 860.163853][ T28] Showing all locks held in the system:
[ 860.171581][ T28] 1 lock held by rcu_tasks_kthre/12:
[ 860.176912][ T28] #0: ffffffff8c78e4d0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70
[ 860.187481][ T28] 1 lock held by rcu_tasks_trace/13:
[ 860.192760][ T28] #0: ffffffff8c78e1d0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70
[ 860.203823][ T28] 1 lock held by khungtaskd/28:
[ 860.208687][ T28] #0: ffffffff8c78f020 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x57/0x264
[ 860.218640][ T28] 2 locks held by getty/4971:
[ 860.223324][ T28] #0: ffff88802be34098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80
[ 860.233225][ T28] #1: ffffc900015962f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0
[ 860.243421][ T28] 1 lock held by udevd/5328:
[ 860.248071][ T28] #0: ffff88801e7eb4c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xc0/0x770
[ 860.257456][ T28] 1 lock held by syz-executor112/5341:
[ 860.262903][ T28] #0: ffff88801e7eb4c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x9b/0xb90
[ 860.273512][ T28]
[ 860.275872][ T28] =============================================
[ 860.275872][ T28]
[ 860.284355][ T28] NMI backtrace for cpu 0
[ 860.288690][ T28] CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.1.0-rc6-next-20221125-syzkaller #0
[ 860.297985][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
[ 860.308051][ T28] Call Trace:
[ 860.311334][ T28]
[ 860.314273][ T28] dump_stack_lvl+0xd1/0x138
[ 860.318881][ T28] nmi_cpu_backtrace.cold+0x24/0x18a
[ 860.324188][ T28] nmi_trigger_cpumask_backtrace+0x333/0x3c0
[ 860.330216][ T28] ? lapic_can_unplug_cpu+0x80/0x80
[ 860.335706][ T28] watchdog+0xc75/0xfc0
[ 860.339888][ T28] ? proc_dohung_task_timeout_secs+0x80/0x80
[ 860.345895][ T28] kthread+0x2e8/0x3a0
[ 860.349973][ T28] ? kthread_complete_and_exit+0x40/0x40
[ 860.355625][ T28] ret_from_fork+0x1f/0x30
[ 860.360082][ T28]
[ 860.363211][ T28] Sending NMI from CPU 0 to CPUs 1:
[ 860.368469][ C1] NMI backtrace for cpu 1
[ 860.368478][ C1] CPU: 1 PID: 5312 Comm: kworker/u4:2 Not tainted 6.1.0-rc6-next-20221125-syzkaller #0
[ 860.368502][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
[ 860.368513][ C1] Workqueue: 0x0 (events_unbound)
[ 860.368534][ C1] RIP: 0010:update_rt_rq_load_avg+0x44/0x880
[ 860.368561][ C1] Code: 48 89 f5 53 48 89 fb 48 8d be 40 0b 00 00 48 83 ec 28 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 54 06 00 00 48 8b 95 40 0b 00 00 <48> 89 d8 48 29 d0 0f 88 80 02 00 00 49 89 c5 49 c1 ed 0a 4d 85 ed
[ 860.368577][ C1] RSP: 0018:ffffc90003f2f9f8 EFLAGS: 00000046
[ 860.368590][ C1] RAX: dffffc0000000000 RBX: 000000c7f58d2e6c RCX: 0000000000000001
[ 860.368602][ C1] RDX: 000000c7f416e000 RSI: ffff8880b993b580 RDI: ffff8880b993c0c0
[ 860.368614][ C1] RBP: ffff8880b993b580 R08: ffff8880b993bfc8 R09: ffff8880b993c000
[ 860.368625][ C1] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000
[ 860.368636][ C1] R13: ffffffff8c119430 R14: ffff8880b993b580 R15: ffff88813ff37400
[ 860.368648][ C1] FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
[ 860.368665][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 860.368678][ C1] CR2: 00005639dbf22680 CR3: 000000000c48e000 CR4: 00000000003506e0
[ 860.368689][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 860.368699][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 860.368710][ C1] Call Trace:
[ 860.368715][ C1]
[ 860.368724][ C1] update_blocked_averages+0x2ac/0x1dc0
[ 860.368750][ C1] ? sched_clock_cpu+0x6d/0x2b0
[ 860.368778][ C1] ? lock_downgrade+0x6e0/0x6e0
[ 860.368806][ C1] ? prepare_to_wait+0x380/0x380
[ 860.368838][ C1] newidle_balance+0x4c2/0x11d0
[ 860.368864][ C1] ? rcu_read_lock_sched_held+0x3e/0x70
[ 860.368896][ C1] ? load_balance+0x2e30/0x2e30
[ 860.368926][ C1] pick_next_task_fair+0x9a/0x12e0
[ 860.368955][ C1] __schedule+0x405/0x5450
[ 860.368982][ C1] ? find_held_lock+0x2d/0x110
[ 860.369007][ C1] ? io_schedule_timeout+0x150/0x150
[ 860.369029][ C1] ? worker_thread+0x15b/0x1090
[ 860.369048][ C1] ? lock_downgrade+0x6e0/0x6e0
[ 860.369077][ C1] ? rwlock_bug.part.0+0x90/0x90
[ 860.369096][ C1] schedule+0xde/0x1b0
[ 860.369116][ C1] worker_thread+0x160/0x1090
[ 860.369139][ C1] ? __kthread_parkme+0x163/0x220
[ 860.369166][ C1] ? process_one_work+0x1710/0x1710
[ 860.369187][ C1] kthread+0x2e8/0x3a0
[ 860.369202][ C1] ? kthread_complete_and_exit+0x40/0x40
[ 860.369220][ C1] ret_from_fork+0x1f/0x30
[ 860.369251][ C1]
[ 860.372043][ T28] Kernel panic - not syncing: hung_task: blocked tasks
[ 860.630736][ T28] CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.1.0-rc6-next-20221125-syzkaller #0
[ 860.640096][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
[ 860.650225][ T28] Call Trace:
[ 860.653496][ T28]
[ 860.656418][ T28] dump_stack_lvl+0xd1/0x138
[ 860.661004][ T28] panic+0x2cc/0x626
[ 860.664897][ T28] ? panic_print_sys_info.part.0+0x110/0x110
[ 860.670892][ T28] ? preempt_schedule_thunk+0x1a/0x20
[ 860.676265][ T28] ? watchdog.cold+0x130/0x158
[ 860.681054][ T28] watchdog.cold+0x141/0x158
[ 860.685644][ T28] ? proc_dohung_task_timeout_secs+0x80/0x80
[ 860.691623][ T28] kthread+0x2e8/0x3a0
[ 860.695680][ T28] ? kthread_complete_and_exit+0x40/0x40
[ 860.701304][ T28] ret_from_fork+0x1f/0x30
[ 860.705724][ T28]
[ 860.708903][ T28] Kernel Offset: disabled
[ 860.713229][ T28] Rebooting in 86400 seconds..