Warning: Permanently added '10.128.0.219' (ED25519) to the list of known hosts. executing program [ 537.365559][ T3583] nbd0: detected capacity change from 0 to 122 [ 537.484918][ T48] block nbd0: Receive control failed (result -104) [ 537.485946][ T3584] block nbd0: shutting down sockets [ 537.502631][ C0] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 537.511817][ C0] Buffer I/O error on dev nbd0, logical block 0, async page read [ 537.519841][ T3586] ldm_validate_partition_table(): Disk read failed. [ 537.526724][ T3586] Dev nbd0: unable to read RDB block 0 executing program [ 537.532197][ T3586] nbd0: unable to read partition table [ 537.538047][ T3586] nbd0: partition table beyond EOD, truncated executing program [ 537.582465][ T3588] block nbd0: Device being setup by another task [ 537.589046][ T3588] nbd0: detected capacity change from 0 to 122 [ 537.694312][ T3591] nbd0: detected capacity change from 0 to 122 [ 537.812742][ T48] block nbd0: Receive control failed (result -104) [ 537.820085][ T3590] block nbd0: shutting down sockets [ 537.825799][ C0] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 537.834884][ C0] Buffer I/O error on dev nbd0, logical block 0, async page read [ 537.842744][ T3586] ldm_validate_partition_table(): Disk read failed. [ 537.849355][ T3586] Dev nbd0: unable to read RDB block 0 [ 537.854955][ T3586] nbd0: unable to read partition table executing program [ 537.860634][ T3586] nbd0: partition table beyond EOD, truncated [ 537.977511][ T3593] nbd0: detected capacity change from 0 to 122 [ 538.096310][ T48] block nbd0: Receive control failed (result -104) [ 568.443280][ T52] block nbd0: Possible stuck request ffff88801f890400: control (read@0,4096B). Runtime 30 seconds [ 598.056536][ T3003] udevd[3003]: worker [3586] /devices/virtual/block/nbd0 is taking a long time [ 598.522607][ T52] block nbd0: Possible stuck request ffff88801f890400: control (read@0,4096B). Runtime 60 seconds [ 628.602583][ T52] block nbd0: Possible stuck request ffff88801f890400: control (read@0,4096B). Runtime 90 seconds [ 658.682611][ T52] block nbd0: Possible stuck request ffff88801f890400: control (read@0,4096B). Runtime 120 seconds [ 688.762546][ T52] block nbd0: Possible stuck request ffff88801f890400: control (read@0,4096B). Runtime 150 seconds [ 716.282479][ T28] INFO: task syz-executor387:3594 blocked for more than 143 seconds. [ 716.290668][ T28] Not tainted 6.1.75-syzkaller #0 [ 716.296390][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 716.305133][ T28] task:syz-executor387 state:D stack:28168 pid:3594 ppid:3581 flags:0x00004006 [ 716.314456][ T28] Call Trace: [ 716.317778][ T28] [ 716.320747][ T28] __schedule+0x142d/0x4550 [ 716.325452][ T28] ? __mutex_lock+0x6b4/0xd80 [ 716.330172][ T28] ? release_firmware_map_entry+0x185/0x185 [ 716.336135][ T28] ? __mutex_trylock_common+0x8d/0x2e0 [ 716.341700][ T28] ? do_raw_spin_unlock+0x137/0x8a0 [ 716.346996][ T28] schedule+0xbf/0x180 [ 716.351098][ T28] schedule_preempt_disabled+0xf/0x20 [ 716.356569][ T28] __mutex_lock+0x6b9/0xd80 [ 716.361098][ T28] ? __mutex_lock+0x53c/0xd80 [ 716.366011][ T28] ? blkdev_put+0x100/0x750 [ 716.370611][ T28] ? mutex_lock_nested+0x10/0x10 [ 716.375629][ T28] ? __fsnotify_parent+0x50b/0x730 [ 716.380838][ T28] ? __fsnotify_update_child_dentry_flags+0x2a0/0x2a0 [ 716.387681][ T28] blkdev_put+0x100/0x750 [ 716.392035][ T28] ? task_work_run+0x1fc/0x300 [ 716.396917][ T28] blkdev_close+0x56/0x80 [ 716.401271][ T28] ? blkdev_open+0x2e0/0x2e0 [ 716.405915][ T28] __fput+0x3b7/0x890 [ 716.410003][ T28] task_work_run+0x246/0x300 [ 716.414669][ T28] ? task_work_cancel+0x2b0/0x2b0 [ 716.419730][ T28] ? blkdev_ioctl+0x3a9/0x760 [ 716.424558][ T28] ? exit_to_user_mode_loop+0x39/0x100 [ 716.430105][ T28] exit_to_user_mode_loop+0xde/0x100 [ 716.435457][ T28] exit_to_user_mode_prepare+0xb1/0x140 [ 716.441054][ T28] syscall_exit_to_user_mode+0x60/0x270 [ 716.446722][ T28] do_syscall_64+0x49/0xb0 [ 716.451200][ T28] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 716.457238][ T28] RIP: 0033:0x7f51d876c4b9 [ 716.461703][ T28] RSP: 002b:00007f51d8709228 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 716.470188][ T28] RAX: 0000000000000000 RBX: 00007f51d87f3338 RCX: 00007f51d876c4b9 [ 716.478215][ T28] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000003 [ 716.486276][ T28] RBP: 00007f51d87f3330 R08: 00007ffccf74e847 R09: 00007f51d87096c0 [ 716.494307][ T28] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f51d87f333c [ 716.502350][ T28] R13: 00007f51d87c01a4 R14: 64626e2f7665642f R15: 00007ffccf74e848 [ 716.510378][ T28] [ 716.513475][ T28] [ 716.513475][ T28] Showing all locks held in the system: [ 716.521206][ T28] 1 lock held by rcu_tasks_kthre/12: [ 716.526546][ T28] #0: ffffffff8d12a490 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 [ 716.537187][ T28] 1 lock held by rcu_tasks_trace/13: [ 716.542529][ T28] #0: ffffffff8d12ac90 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 [ 716.553630][ T28] 1 lock held by khungtaskd/28: [ 716.558492][ T28] #0: ffffffff8d12a2c0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x290 [ 716.568475][ T28] 2 locks held by getty/3307: [ 716.573212][ T28] #0: ffff88814b2a2098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 [ 716.583156][ T28] #1: ffffc900031262f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a7/0x1db0 [ 716.593351][ T28] 1 lock held by udevd/3586: [ 716.597945][ T28] #0: ffff888143b1d4c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x148/0xa10 [ 716.608082][ T28] 1 lock held by syz-executor387/3594: [ 716.613593][ T28] #0: ffff888143b1d4c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0x100/0x750 [ 716.623065][ T28] [ 716.625402][ T28] ============================================= [ 716.625402][ T28] [ 716.633889][ T28] NMI backtrace for cpu 1 [ 716.638226][ T28] CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.1.75-syzkaller #0 [ 716.646023][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 716.656076][ T28] Call Trace: [ 716.659378][ T28] [ 716.662313][ T28] dump_stack_lvl+0x1e3/0x2cb [ 716.666996][ T28] ? nf_tcp_handle_invalid+0x642/0x642 [ 716.672479][ T28] ? panic+0x75d/0x75d [ 716.676551][ T28] ? vprintk_emit+0x622/0x740 [ 716.681256][ T28] ? printk_sprint+0x490/0x490 [ 716.686024][ T28] ? nmi_cpu_backtrace+0x252/0x560 [ 716.691164][ T28] nmi_cpu_backtrace+0x4e1/0x560 [ 716.696116][ T28] ? nmi_trigger_cpumask_backtrace+0x3f0/0x3f0 [ 716.702319][ T28] ? _printk+0xd1/0x111 [ 716.706491][ T28] ? panic+0x75d/0x75d [ 716.710573][ T28] ? __wake_up_klogd+0xcc/0x100 [ 716.715440][ T28] ? panic+0x75d/0x75d [ 716.719520][ T28] ? nmi_trigger_cpumask_backtrace+0xe2/0x3f0 [ 716.725603][ T28] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 716.731742][ T28] nmi_trigger_cpumask_backtrace+0x1b0/0x3f0 [ 716.737916][ T28] watchdog+0xf88/0xfd0 [ 716.742118][ T28] ? watchdog+0x1f8/0xfd0 [ 716.746460][ T28] kthread+0x28d/0x320 [ 716.750575][ T28] ? hungtask_pm_notify+0x50/0x50 [ 716.755642][ T28] ? kthread_blkcg+0xd0/0xd0 [ 716.760265][ T28] ret_from_fork+0x1f/0x30 [ 716.764756][ T28] [ 716.767915][ T28] Sending NMI from CPU 1 to CPUs 0: [ 716.773187][ C0] NMI backtrace for cpu 0 [ 716.773198][ C0] CPU: 0 PID: 16 Comm: rcu_preempt Not tainted 6.1.75-syzkaller #0 [ 716.773215][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 716.773224][ C0] RIP: 0010:update_curr+0x5a0/0xaf0 [ 716.773311][ C0] Code: 24 48 8d 98 90 08 00 00 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 08 48 89 df e8 63 30 80 00 48 8b 2b <48> 8d 9d 98 01 00 00 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc [ 716.773324][ C0] RSP: 0018:ffffc90000157768 EFLAGS: 00000046 [ 716.773339][ C0] RAX: 1ffff11027fdec4a RBX: ffff88813fef6250 RCX: dffffc0000000000 [ 716.773352][ C0] RDX: 0000000000000000 RSI: ffffffff8aebf7c0 RDI: ffffffff8b3cfb00 [ 716.773364][ C0] RBP: ffff88813fe6e540 R08: dffffc0000000000 R09: fffffbfff1ce6a56 [ 716.773376][ C0] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88813fef59c0 [ 716.773387][ C0] R13: 1ffff110173073dd R14: 00000005f3f19120 R15: ffff8880b9839ee8 [ 716.773400][ C0] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 716.773414][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 716.773425][ C0] CR2: 00007f1fb2ee8e3f CR3: 000000000ce8e000 CR4: 00000000003506f0 [ 716.773439][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 716.773449][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 716.773459][ C0] Call Trace: [ 716.773464][ C0] [ 716.773470][ C0] ? nmi_cpu_backtrace+0x3de/0x560 [ 716.773497][ C0] ? read_lock_is_recursive+0x10/0x10 [ 716.773525][ C0] ? nmi_trigger_cpumask_backtrace+0x3f0/0x3f0 [ 716.773551][ C0] ? nmi_handle+0x25/0x440 [ 716.773621][ C0] ? nmi_cpu_backtrace_handler+0x8/0x10 [ 716.773646][ C0] ? nmi_handle+0x12e/0x440 [ 716.773671][ C0] ? nmi_handle+0x25/0x440 [ 716.773696][ C0] ? update_curr+0x5a0/0xaf0 [ 716.773715][ C0] ? default_do_nmi+0x62/0x150 [ 716.773732][ C0] ? exc_nmi+0xab/0x120 [ 716.773746][ C0] ? end_repeat_nmi+0x16/0x31 [ 716.773777][ C0] ? update_curr+0x5a0/0xaf0 [ 716.773797][ C0] ? update_curr+0x5a0/0xaf0 [ 716.773818][ C0] ? update_curr+0x5a0/0xaf0 [ 716.773838][ C0] [ 716.773843][ C0] [ 716.773853][ C0] dequeue_entity+0x85/0x12e0 [ 716.773880][ C0] ? rcu_is_watching+0x11/0xb0 [ 716.773908][ C0] dequeue_task_fair+0x270/0x1460 [ 716.773931][ C0] ? kvm_sched_clock_read+0x14/0x40 [ 716.773979][ C0] ? enqueue_task_fair+0xb90/0xb90 [ 716.774013][ C0] __schedule+0x5f9/0x4550 [ 716.774039][ C0] ? _raw_spin_unlock+0x40/0x40 [ 716.774065][ C0] ? __mod_timer+0x956/0xee0 [ 716.774085][ C0] ? release_firmware_map_entry+0x185/0x185 [ 716.774112][ C0] ? lockdep_softirqs_off+0x420/0x420 [ 716.774135][ C0] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 716.774155][ C0] ? _raw_spin_unlock+0x40/0x40 [ 716.774179][ C0] schedule+0xbf/0x180 [ 716.774204][ C0] schedule_timeout+0x1b9/0x300 [ 716.774222][ C0] ? console_conditional_schedule+0x40/0x40 [ 716.774243][ C0] ? update_process_times+0x1b0/0x1b0 [ 716.774282][ C0] ? prepare_to_swait_event+0x329/0x350 [ 716.774310][ C0] rcu_gp_fqs_loop+0x2d2/0x1120 [ 716.774332][ C0] ? do_raw_spin_unlock+0x137/0x8a0 [ 716.774350][ C0] ? _raw_spin_unlock_irqrestore+0x8b/0x130 [ 716.774371][ C0] ? lockdep_hardirqs_on+0x94/0x130 [ 716.774389][ C0] ? rcu_gp_init+0x15d0/0x15d0 [ 716.774406][ C0] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 716.774431][ C0] ? finish_swait+0xcf/0x1e0 [ 716.774455][ C0] rcu_gp_kthread+0xa3/0x3a0 [ 716.774475][ C0] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 716.774493][ C0] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 716.774517][ C0] ? __kthread_parkme+0x168/0x1c0 [ 716.774545][ C0] kthread+0x28d/0x320 [ 716.774570][ C0] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 716.774587][ C0] ? kthread_blkcg+0xd0/0xd0 [ 716.774613][ C0] ret_from_fork+0x1f/0x30 [ 716.774644][ C0] [ 716.774650][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.463 msecs [ 716.775210][ T28] Kernel panic - not syncing: hung_task: blocked tasks [ 717.167259][ T28] CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.1.75-syzkaller #0 [ 717.175077][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 717.185139][ T28] Call Trace: [ 717.188421][ T28] [ 717.191358][ T28] dump_stack_lvl+0x1e3/0x2cb [ 717.196057][ T28] ? nf_tcp_handle_invalid+0x642/0x642 [ 717.201539][ T28] ? panic+0x75d/0x75d [ 717.205618][ T28] ? vscnprintf+0x59/0x80 [ 717.209954][ T28] panic+0x318/0x75d [ 717.213852][ T28] ? nmi_trigger_cpumask_backtrace+0x2c1/0x3f0 [ 717.220015][ T28] ? memcpy_page_flushcache+0xfc/0xfc [ 717.225410][ T28] ? nmi_trigger_cpumask_backtrace+0x2c1/0x3f0 [ 717.231615][ T28] ? nmi_trigger_cpumask_backtrace+0x33a/0x3f0 [ 717.237787][ T28] ? nmi_trigger_cpumask_backtrace+0x33f/0x3f0 [ 717.243957][ T28] watchdog+0xfc7/0xfd0 [ 717.248130][ T28] ? watchdog+0x1f8/0xfd0 [ 717.252475][ T28] kthread+0x28d/0x320 [ 717.256560][ T28] ? hungtask_pm_notify+0x50/0x50 [ 717.261591][ T28] ? kthread_blkcg+0xd0/0xd0 [ 717.266201][ T28] ret_from_fork+0x1f/0x30 [ 717.270638][ T28] [ 717.273955][ T28] Kernel Offset: disabled [ 717.278285][ T28] Rebooting in 86400 seconds..