[ 459.910284][ T5171] block nbd1: Receive control failed (result -104)
[ 459.910907][ T9744] block nbd1: shutting down sockets
[ 459.922745][ C1] blk_print_req_error: 1258 callbacks suppressed
[ 459.922758][ C1] I/O error, dev nbd1, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
[ 459.938101][ C1] buffer_io_error: 1232 callbacks suppressed
[ 459.938121][ C1] Buffer I/O error on dev nbd1, logical block 0, async page read
[ 459.951952][ T6201] I/O error, dev nbd1, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
[ 459.961031][ T6201] Buffer I/O error on dev nbd1, logical block 0, async page read
[ 459.969801][ T6201] I/O error, dev nbd1, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
[ 459.978906][ T6201] Buffer I/O error on dev nbd1, logical block 0, async page read
[ 459.986825][ T6201] I/O error, dev nbd1, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
[ 459.996441][ T6201] Buffer I/O error on dev nbd1, logical block 0, async page read
[ 460.004359][ T6201] I/O error, dev nbd1, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
[ 460.013455][ T6201] Buffer I/O error on dev nbd1, logical block 0, async page read
[ 460.021279][ T6201] I/O error, dev nbd1, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
[ 460.030318][ T6201] Buffer I/O error on dev nbd1, logical block 0, async page read
[ 460.038249][ T6201] I/O error, dev nbd1, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
[ 460.047320][ T6201] Buffer I/O error on dev nbd1, logical block 0, async page read
[ 460.055148][ T6201] I/O error, dev nbd1, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
[ 460.064188][ T6201] Buffer I/O error on dev nbd1, logical block 0, async page read
[ 460.072129][ T6201] ldm_validate_partition_table(): Disk read failed.
[ 460.078797][ T6201] I/O error, dev nbd1, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
[ 460.087881][ T6201] Buffer I/O error on dev nbd1, logical block 0, async page read
[ 460.096345][ T6201] I/O error, dev nbd1, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
[ 460.105499][ T6201] Buffer I/O error on dev nbd1, logical block 0, async page read
[ 460.113619][ T6201] Dev nbd1: unable to read RDB block 0
[ 460.119386][ T6201] nbd1: unable to read partition table
[ 460.128774][ T6201] ldm_validate_partition_table(): Disk read failed.
[ 460.136099][ T6201] Dev nbd1: unable to read RDB block 0
[ 460.142159][ T6201] nbd1: unable to read partition table
[ 460.150691][ T9750] ldm_validate_partition_table(): Disk read failed.
[ 460.157767][ T9750] Dev nbd1: unable to read RDB block 0
[ 460.164821][ T9750] nbd1: unable to read partition table
[ 460.263117][ T9750] block nbd1: Device being setup by another task
[ 460.270414][ T6201] ldm_validate_partition_table(): Disk read failed.
[ 460.278451][ T6201] Dev nbd1: unable to read RDB block 0
[ 460.285913][ T6201] nbd1: unable to read partition table
[ 460.304854][ T6201] ldm_validate_partition_table(): Disk read failed.
[ 460.317673][ T6201] Dev nbd1: unable to read RDB block 0
[ 460.325244][ T6201] nbd1: unable to read partition table
[ 460.338378][ T9753] ldm_validate_partition_table(): Disk read failed.
[ 460.346781][ T9753] Dev nbd1: unable to read RDB block 0
[ 460.353866][ T9753] nbd1: unable to read partition table
[ 460.461946][ T9754] block nbd1: Device being setup by another task
[ 460.469218][ T6201] ldm_validate_partition_table(): Disk read failed.
[ 460.477218][ T6201] Dev nbd1: unable to read RDB block 0
[ 460.484765][ T6201] nbd1: unable to read partition table
[ 460.497064][ T6201] ldm_validate_partition_table(): Disk read failed.
[ 460.504138][ T6201] Dev nbd1: unable to read RDB block 0
[ 460.519655][ T6201] nbd1: unable to read partition table
[ 460.691142][ T13] netdevsim netdevsim1 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 460.743040][ T13] netdevsim netdevsim1 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 460.793513][ T13] netdevsim netdevsim1 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 460.832055][ T13] netdevsim netdevsim1 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[ 460.924917][ T13] bridge_slave_1: left allmulticast mode
[ 460.930619][ T13] bridge_slave_1: left promiscuous mode
[ 460.936933][ T13] bridge0: port 2(bridge_slave_1) entered disabled state
[ 460.945632][ T13] bridge_slave_0: left allmulticast mode
[ 460.951254][ T13] bridge_slave_0: left promiscuous mode
[ 460.957241][ T13] bridge0: port 1(bridge_slave_0) entered disabled state
[ 461.139700][ T13] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
[ 461.150615][ T13] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
[ 461.160824][ T13] bond0 (unregistering): Released all slaves
[ 461.426470][ T13] hsr_slave_0: left promiscuous mode
[ 461.434149][ T13] hsr_slave_1: left promiscuous mode
[ 461.440151][ T13] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[ 461.449350][ T13] batman_adv: batadv0: Removing interface: batadv_slave_0
[ 461.459696][ T13] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[ 461.467392][ T13] batman_adv: batadv0: Removing interface: batadv_slave_1
[ 461.488266][ T13] veth1_macvtap: left promiscuous mode
[ 461.496847][ T13] veth0_macvtap: left promiscuous mode
[ 461.504834][ T13] veth1_vlan: left promiscuous mode
[ 461.510140][ T13] veth0_vlan: left promiscuous mode
[ 461.748157][ T13] team0 (unregistering): Port device team_slave_1 removed
[ 461.770207][ T13] team0 (unregistering): Port device team_slave_0 removed
Warning: Permanently added '10.128.1.177' (ED25519) to the list of known hosts.
[ 465.210298][ T5220] udevd[5220]: worker [6217] /devices/virtual/block/nbd0 is taking a long time
Setting up swapspace version 1, size = 127995904 bytes
[ 466.559295][ T9823] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 466.576281][ T51] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
[ 466.584305][ T51] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
[ 466.592354][ T51] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[ 466.600378][ T51] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
executing program
[ 466.608363][ T51] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
[ 468.651974][ T5171] Bluetooth: hci0: command tx timeout
[ 470.732004][ T5171] Bluetooth: hci0: command tx timeout
[ 472.811904][ T5171] Bluetooth: hci0: command tx timeout
[ 474.891970][ T5171] Bluetooth: hci0: command tx timeout
[ 487.142493][ T95] block nbd0: Possible stuck request ffff8880270a1f80: control (read@0,4096B). Runtime 90 seconds
[ 501.214160][ T1299] ieee802154 phy0 wpan0: encryption failed: -22
[ 501.220429][ T1299] ieee802154 phy1 wpan1: encryption failed: -22
[ 517.211973][ T55] block nbd0: Possible stuck request ffff8880270a1f80: control (read@0,4096B). Runtime 120 seconds
[ 540.891858][ T31] INFO: task syz.0.1117:9244 blocked for more than 143 seconds.
[ 540.899506][ T31] Not tainted syzkaller #0
[ 540.904529][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 540.913329][ T31] task:syz.0.1117 state:D stack:27656 pid:9244 tgid:9243 ppid:7972 task_flags:0x400140 flags:0x00004006
[ 540.925320][ T31] Call Trace:
[ 540.928599][ T31]
[ 540.931508][ T31] __schedule+0x1190/0x5de0
[ 540.936059][ T31] ? __lock_acquire+0x62e/0x1ce0
[ 540.940991][ T31] ? __lock_acquire+0x62e/0x1ce0
[ 540.945942][ T31] ? __pfx___schedule+0x10/0x10
[ 540.950788][ T31] ? find_held_lock+0x2b/0x80
[ 540.955534][ T31] ? schedule+0x2d7/0x3a0
[ 540.959868][ T31] ? bdev_release+0x15a/0x6d0
[ 540.964566][ T31] schedule+0xe7/0x3a0
[ 540.968637][ T31] schedule_preempt_disabled+0x13/0x30
[ 540.974148][ T31] __mutex_lock+0x81b/0x1060
[ 540.978754][ T31] ? bdev_release+0x15a/0x6d0
[ 540.983461][ T31] ? __pfx___mutex_lock+0x10/0x10
[ 540.988484][ T31] ? find_held_lock+0x2b/0x80
[ 540.993446][ T31] ? do_raw_spin_unlock+0x172/0x230
[ 540.998665][ T31] ? bdev_release+0x15a/0x6d0
[ 541.003348][ T31] bdev_release+0x15a/0x6d0
[ 541.007852][ T31] ? __pfx_blkdev_release+0x10/0x10
[ 541.013083][ T31] blkdev_release+0x15/0x20
[ 541.017576][ T31] __fput+0x402/0xb70
[ 541.021541][ T31] task_work_run+0x150/0x240
[ 541.026228][ T31] ? __pfx_task_work_run+0x10/0x10
[ 541.031340][ T31] get_signal+0x1d1/0x26d0
[ 541.035811][ T31] ? kick_process+0xf6/0x1a0
[ 541.040393][ T31] ? __pfx_get_signal+0x10/0x10
[ 541.045269][ T31] ? task_work_add+0x1d5/0x360
[ 541.050109][ T31] ? __pfx_task_work_add+0x10/0x10
[ 541.055243][ T31] ? __pfx_autoremove_wake_function+0x10/0x10
[ 541.061308][ T31] arch_do_signal_or_restart+0x8f/0x7d0
[ 541.066954][ T31] ? __pfx_arch_do_signal_or_restart+0x10/0x10
[ 541.073152][ T31] exit_to_user_mode_loop+0x84/0x110
[ 541.078422][ T31] do_syscall_64+0x41c/0x4e0
[ 541.083032][ T31] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 541.088916][ T31] RIP: 0033:0x7f315278ebe9
[ 541.093368][ T31] RSP: 002b:00007f315358f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 541.102050][ T31] RAX: 0000000000000000 RBX: 00007f31529b5fa0 RCX: 00007f315278ebe9
[ 541.110019][ T31] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000003
[ 541.118054][ T31] RBP: 00007f3152811e19 R08: 0000000000000000 R09: 0000000000000000
[ 541.126041][ T31] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 541.134166][ T31] R13: 00007f31529b6038 R14: 00007f31529b5fa0 R15: 00007ffe8a4bd418
[ 541.142169][ T31]
[ 541.145194][ T31]
[ 541.145194][ T31] Showing all locks held in the system:
[ 541.152933][ T31] 1 lock held by khungtaskd/31:
[ 541.157761][ T31] #0: ffffffff8e5c2860 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x36/0x1c0
[ 541.167623][ T31] 2 locks held by getty/5610:
[ 541.172326][ T31] #0: ffff888036aec0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80
[ 541.182082][ T31] #1: ffffc9000332b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x41b/0x14f0
[ 541.192223][ T31] 1 lock held by udevd/6217:
[ 541.197018][ T31] #0: ffff888027014358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0x41a/0xe40
[ 541.206373][ T31] 1 lock held by syz.0.1117/9244:
[ 541.211381][ T31] #0: ffff888027014358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_release+0x15a/0x6d0
[ 541.221102][ T31] 1 lock held by syz-executor100/9829:
[ 541.226577][ T31] #0: ffff888027014358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0x41a/0xe40
[ 541.235922][ T31]
[ 541.238235][ T31] =============================================
[ 541.238235][ T31]
[ 541.246741][ T31] NMI backtrace for cpu 1
[ 541.246763][ T31] CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full)
[ 541.246784][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 541.246795][ T31] Call Trace:
[ 541.246802][ T31]
[ 541.246810][ T31] dump_stack_lvl+0x116/0x1f0
[ 541.246842][ T31] nmi_cpu_backtrace+0x27b/0x390
[ 541.246867][ T31] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[ 541.246897][ T31] nmi_trigger_cpumask_backtrace+0x29c/0x300
[ 541.246924][ T31] watchdog+0xf0e/0x1260
[ 541.246953][ T31] ? __pfx_watchdog+0x10/0x10
[ 541.246974][ T31] ? lockdep_hardirqs_on+0x7c/0x110
[ 541.247002][ T31] ? __kthread_parkme+0x19e/0x250
[ 541.247033][ T31] ? __pfx_watchdog+0x10/0x10
[ 541.247055][ T31] kthread+0x3c2/0x780
[ 541.247075][ T31] ? __pfx_kthread+0x10/0x10
[ 541.247096][ T31] ? rcu_is_watching+0x12/0xc0
[ 541.247121][ T31] ? __pfx_kthread+0x10/0x10
[ 541.247141][ T31] ret_from_fork+0x56a/0x730
[ 541.247158][ T31] ? __pfx_kthread+0x10/0x10
[ 541.247179][ T31] ret_from_fork_asm+0x1a/0x30
[ 541.247216][ T31]
[ 541.247223][ T31] Sending NMI from CPU 1 to CPUs 0:
[ 541.362334][ C0] NMI backtrace for cpu 0
[ 541.362350][ C0] CPU: 0 UID: 0 PID: 13 Comm: kworker/u8:1 Not tainted syzkaller #0 PREEMPT(full)
[ 541.362373][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 541.362387][ C0] Workqueue: bat_events batadv_nc_worker
[ 541.362415][ C0] RIP: 0010:lock_acquire+0x134/0x350
[ 541.362435][ C0] Code: 65 8b 05 d7 91 3f 12 85 c0 0f 85 a2 00 00 00 65 48 8b 05 17 50 3f 12 8b 90 ec 0a 00 00 85 d2 0f 85 8c 00 00 00 9c 8f 04 24 fa <48> c7 c7 11 92 f4 8d e8 d0 e3 fd 09 45 89 e0 89 e9 44 89 ea 65 ff
[ 541.362455][ C0] RSP: 0018:ffffc90000127a40 EFLAGS: 00000046
[ 541.362470][ C0] RAX: ffff88801e298000 RBX: ffffffff8e5c2860 RCX: 0000000000000001
[ 541.362483][ C0] RDX: 0000000000000000 RSI: ffffffff8b62bad4 RDI: fffffbfff1cb850c
[ 541.362496][ C0] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
[ 541.362508][ C0] R10: 0000000000000063 R11: 0000000000000000 R12: 0000000000000000
[ 541.362520][ C0] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[ 541.362531][ C0] FS: 0000000000000000(0000) GS:ffff8881246ac000(0000) knlGS:0000000000000000
[ 541.362550][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 541.362563][ C0] CR2: 00005643acf1a660 CR3: 000000000e380000 CR4: 00000000003526f0
[ 541.362576][ C0] Call Trace:
[ 541.362582][ C0]
[ 541.362590][ C0] ? batadv_nc_process_nc_paths.part.0+0x215/0x3e0
[ 541.362619][ C0] ? __pfx_batadv_nc_fwd_flush+0x10/0x10
[ 541.362641][ C0] batadv_nc_process_nc_paths.part.0+0xe4/0x3e0
[ 541.362667][ C0] ? batadv_nc_process_nc_paths.part.0+0xd3/0x3e0
[ 541.362696][ C0] batadv_nc_worker+0xcd3/0x1030
[ 541.362720][ C0] ? _raw_spin_unlock_irqrestore+0x3b/0x80
[ 541.362749][ C0] ? __pfx_batadv_nc_worker+0x10/0x10
[ 541.362776][ C0] ? rcu_is_watching+0x12/0xc0
[ 541.362803][ C0] process_one_work+0x9cc/0x1b70
[ 541.362830][ C0] ? __pfx_process_one_work+0x10/0x10
[ 541.362855][ C0] ? assign_work+0x1a0/0x250
[ 541.362875][ C0] worker_thread+0x6c8/0xf10
[ 541.362902][ C0] ? __pfx_worker_thread+0x10/0x10
[ 541.362923][ C0] kthread+0x3c2/0x780
[ 541.362942][ C0] ? __pfx_kthread+0x10/0x10
[ 541.362961][ C0] ? rcu_is_watching+0x12/0xc0
[ 541.362985][ C0] ? __pfx_kthread+0x10/0x10
[ 541.363005][ C0] ret_from_fork+0x56a/0x730
[ 541.363023][ C0] ? __pfx_kthread+0x10/0x10
[ 541.363042][ C0] ret_from_fork_asm+0x1a/0x30
[ 541.363072][ C0]
[ 541.363353][ T31] Kernel panic - not syncing: hung_task: blocked tasks
[ 541.603705][ T31] CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full)
[ 541.612800][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 541.622837][ T31] Call Trace:
[ 541.626110][ T31]
[ 541.629023][ T31] dump_stack_lvl+0x3d/0x1f0
[ 541.633618][ T31] vpanic+0x6e8/0x7a0
[ 541.637582][ T31] ? __pfx_vpanic+0x10/0x10
[ 541.642077][ T31] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[ 541.648049][ T31] panic+0xca/0xd0
[ 541.651749][ T31] ? __pfx_panic+0x10/0x10
[ 541.656144][ T31] ? preempt_schedule_thunk+0x16/0x30
[ 541.661501][ T31] ? nmi_trigger_cpumask_backtrace+0x1b1/0x300
[ 541.667639][ T31] ? watchdog+0xd78/0x1260
[ 541.672044][ T31] ? watchdog+0xd6b/0x1260
[ 541.676445][ T31] watchdog+0xd89/0x1260
[ 541.680712][ T31] ? __pfx_watchdog+0x10/0x10
[ 541.685391][ T31] ? lockdep_hardirqs_on+0x7c/0x110
[ 541.690590][ T31] ? __kthread_parkme+0x19e/0x250
[ 541.695609][ T31] ? __pfx_watchdog+0x10/0x10
[ 541.700277][ T31] kthread+0x3c2/0x780
[ 541.704332][ T31] ? __pfx_kthread+0x10/0x10
[ 541.708908][ T31] ? rcu_is_watching+0x12/0xc0
[ 541.713660][ T31] ? __pfx_kthread+0x10/0x10
[ 541.718236][ T31] ret_from_fork+0x56a/0x730
[ 541.722811][ T31] ? __pfx_kthread+0x10/0x10
[ 541.727383][ T31] ret_from_fork_asm+0x1a/0x30
[ 541.732140][ T31]
[ 541.735367][ T31] Kernel Offset: disabled
[ 541.739675][ T31] Rebooting in 86400 seconds..