Warning: Permanently added '10.128.10.56' (ED25519) to the list of known hosts.
executing program
[ 73.072222][ T4253] nbd0: detected capacity change from 0 to 121732
[ 73.233474][ T48] block nbd0: Receive control failed (result -104)
[ 73.234256][ T4253] block nbd0: shutting down sockets
[ 73.250037][ C0] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
[ 73.259232][ C0] Buffer I/O error on dev nbd0, logical block 0, async page read
[ 73.267170][ T4255] ldm_validate_partition_table(): Disk read failed.
[ 73.274050][ T4255] Dev nbd0: unable to read RDB block 0
executing program
[ 73.279583][ T4255] nbd0: unable to read partition table
[ 73.285555][ T4255] nbd0: partition table beyond EOD, truncated
[ 73.351203][ T4257] nbd0: detected capacity change from 0 to 121732
[ 73.513040][ T48] block nbd0: Receive control failed (result -104)
[ 73.513505][ T4257] block nbd0: shutting down sockets
[ 73.525318][ C0] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
[ 73.534405][ C0] Buffer I/O error on dev nbd0, logical block 0, async page read
[ 73.542289][ T4255] ldm_validate_partition_table(): Disk read failed.
[ 73.548911][ T4255] Dev nbd0: unable to read RDB block 0
[ 73.554509][ T4255] nbd0: unable to read partition table
executing program
[ 73.560262][ T4255] nbd0: partition table beyond EOD, truncated
[ 73.631010][ T4259] nbd0: detected capacity change from 0 to 121732
[ 73.792429][ T48] block nbd0: Receive control failed (result -104)
[ 73.792913][ T4259] block nbd0: shutting down sockets
[ 73.804598][ C0] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
[ 73.813701][ C0] Buffer I/O error on dev nbd0, logical block 0, async page read
[ 73.821622][ T4255] ldm_validate_partition_table(): Disk read failed.
[ 73.828246][ T4255] Dev nbd0: unable to read RDB block 0
[ 73.833891][ T4255] nbd0: unable to read partition table
executing program
[ 73.839609][ T4255] nbd0: partition table beyond EOD, truncated
[ 73.901007][ T4261] nbd0: detected capacity change from 0 to 121732
[ 74.062412][ T48] block nbd0: Receive control failed (result -104)
[ 74.062844][ T4261] block nbd0: shutting down sockets
[ 74.079919][ C0] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
[ 74.089008][ C0] Buffer I/O error on dev nbd0, logical block 0, async page read
[ 74.096966][ T4255] ldm_validate_partition_table(): Disk read failed.
[ 74.103668][ T4255] Dev nbd0: unable to read RDB block 0
executing program
[ 74.109133][ T4255] nbd0: unable to read partition table
[ 74.114884][ T4255] nbd0: partition table beyond EOD, truncated
[ 74.170834][ T4263] nbd0: detected capacity change from 0 to 121732
[ 74.333692][ T48] block nbd0: Receive control failed (result -104)
[ 74.340992][ T4263] block nbd0: shutting down sockets
[ 74.350266][ C0] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
[ 74.359362][ C0] Buffer I/O error on dev nbd0, logical block 0, async page read
[ 74.367312][ T4255] ldm_validate_partition_table(): Disk read failed.
[ 74.374083][ T4255] Dev nbd0: unable to read RDB block 0
executing program
[ 74.379559][ T4255] nbd0: unable to read partition table
[ 74.385291][ T4255] nbd0: partition table beyond EOD, truncated
[ 74.431133][ T4265] nbd0: detected capacity change from 0 to 121732
[ 74.592364][ T48] block nbd0: Receive control failed (result -104)
[ 74.592758][ T4265] block nbd0: shutting down sockets
[ 74.609944][ C1] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
[ 74.619017][ C1] Buffer I/O error on dev nbd0, logical block 0, async page read
[ 74.627041][ T4255] ldm_validate_partition_table(): Disk read failed.
[ 74.633887][ T4255] Dev nbd0: unable to read RDB block 0
executing program
[ 74.639358][ T4255] nbd0: unable to read partition table
[ 74.645230][ T4255] nbd0: partition table beyond EOD, truncated
[ 74.720535][ T4268] nbd0: detected capacity change from 0 to 121732
[ 74.879117][ T48] block nbd0: Receive control failed (result -104)
[ 74.880327][ T4268] block nbd0: shutting down sockets
[ 74.896136][ C0] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
[ 74.905238][ C0] Buffer I/O error on dev nbd0, logical block 0, async page read
[ 74.913131][ T4255] ldm_validate_partition_table(): Disk read failed.
[ 74.919886][ T4255] Dev nbd0: unable to read RDB block 0
executing program
[ 74.925367][ T4255] nbd0: unable to read partition table
[ 74.931313][ T4255] nbd0: partition table beyond EOD, truncated
[ 74.990787][ T4270] nbd0: detected capacity change from 0 to 121732
[ 75.153216][ T48] block nbd0: Receive control failed (result -104)
[ 86.602197][ T951] cfg80211: failed to load regulatory.db
[ 105.160603][ T1043] block nbd0: Possible stuck request ffff888024b68e00: control (read@0,4096B). Runtime 30 seconds
[ 135.240049][ T1043] block nbd0: Possible stuck request ffff888024b68e00: control (read@0,4096B). Runtime 60 seconds
[ 136.626363][ T3624] udevd[3624]: worker [4255] /devices/virtual/block/nbd0 is taking a long time
[ 165.319986][ T1043] block nbd0: Possible stuck request ffff888024b68e00: control (read@0,4096B). Runtime 90 seconds
[ 195.400150][ T1043] block nbd0: Possible stuck request ffff888024b68e00: control (read@0,4096B). Runtime 120 seconds
[ 225.479981][ T1043] block nbd0: Possible stuck request ffff888024b68e00: control (read@0,4096B). Runtime 150 seconds
[ 236.360962][ T27] INFO: task syz-executor407:4270 blocked for more than 143 seconds.
[ 236.369184][ T27] Not tainted 6.1.138-syzkaller #0
[ 236.374932][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 236.383692][ T27] task:syz-executor407 state:D stack:26912 pid:4270 ppid:4251 flags:0x00004006
[ 236.393014][ T27] Call Trace:
[ 236.396312][ T27]
[ 236.399251][ T27] __schedule+0x10e9/0x40d0
[ 236.403866][ T27] ? release_firmware_map_entry+0x18a/0x18a
[ 236.409846][ T27] ? __mutex_trylock_common+0x80/0x250
[ 236.415339][ T27] ? trace_raw_output_contention_end+0xd0/0xd0
[ 236.421585][ T27] schedule+0xb9/0x180
[ 236.425693][ T27] schedule_preempt_disabled+0xf/0x20
[ 236.431182][ T27] __mutex_lock+0x555/0xaf0
[ 236.435722][ T27] ? __mutex_lock+0x3a5/0xaf0
[ 236.440497][ T27] ? blkdev_put+0xfe/0x710
[ 236.444944][ T27] ? mutex_lock_nested+0x10/0x10
[ 236.449946][ T27] ? fsnotify_set_children_dentry_flags+0x220/0x220
[ 236.456650][ T27] blkdev_put+0xfe/0x710
[ 236.464351][ T27] ? blkdev_open+0x2e0/0x2e0
[ 236.469352][ T27] blkdev_close+0x51/0x80
[ 236.475660][ T27] __fput+0x22c/0x920
[ 236.479941][ T27] task_work_run+0x1ca/0x250
[ 236.484751][ T27] ? task_work_cancel+0x230/0x230
[ 236.489863][ T27] ? __lock_acquire+0x7c50/0x7c50
[ 236.494950][ T27] get_signal+0x11a6/0x1350
[ 236.499490][ T27] ? do_syscall_64+0x4c/0xa0
[ 236.504544][ T27] ? entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 236.510742][ T27] arch_do_signal_or_restart+0xb0/0x1230
[ 236.516589][ T27] ? get_sigframe_size+0x10/0x10
[ 236.522172][ T27] ? __phys_addr+0xb6/0x170
[ 236.526750][ T27] ? blkdev_compat_ptr_ioctl+0xd0/0xd0
[ 236.532714][ T27] ? exit_to_user_mode_loop+0x3b/0x110
[ 236.538228][ T27] exit_to_user_mode_loop+0x70/0x110
[ 236.543714][ T27] exit_to_user_mode_prepare+0xb1/0x140
[ 236.549391][ T27] syscall_exit_to_user_mode+0x16/0x40
[ 236.554966][ T27] do_syscall_64+0x58/0xa0
[ 236.559522][ T27] ? clear_bhb_loop+0x45/0xa0
[ 236.564370][ T27] ? clear_bhb_loop+0x45/0xa0
[ 236.569073][ T27] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 236.575042][ T27] RIP: 0033:0x7f6d58b60ae9
[ 236.579500][ T27] RSP: 002b:00007f6d58b1e218 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 236.588060][ T27] RAX: 0000000000000000 RBX: 00007f6d58be8328 RCX: 00007f6d58b60ae9
[ 236.596117][ T27] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000003
[ 236.604172][ T27] RBP: 00007f6d58be8320 R08: 0000000000000000 R09: 0000000000000000
[ 236.612224][ T27] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6d58be832c
[ 236.620342][ T27] R13: 00007f6d58bb5544 R14: 64626e2f7665642f R15: 00002000000000c0
[ 236.628354][ T27]
[ 236.631470][ T27]
[ 236.631470][ T27] Showing all locks held in the system:
[ 236.639199][ T27] 1 lock held by rcu_tasks_kthre/12:
[ 236.644534][ T27] #0: ffffffff8c92b2f0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x33/0xf00
[ 236.655080][ T27] 1 lock held by rcu_tasks_trace/13:
[ 236.660596][ T27] #0: ffffffff8c92bb10 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x33/0xf00
[ 236.671705][ T27] 1 lock held by khungtaskd/27:
[ 236.676581][ T27] #0: ffffffff8c92a960 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x290
[ 236.686555][ T27] 2 locks held by getty/4015:
[ 236.691283][ T27] #0: ffff8880302e4098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70
[ 236.701124][ T27] #1: ffffc9000325e2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x41b/0x1380
[ 236.711316][ T27] 1 lock held by udevd/4255:
[ 236.715901][ T27] #0: ffff8881447c54c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x13d/0xa60
[ 236.726061][ T27] 1 lock held by syz-executor407/4270:
[ 236.731570][ T27] #0: ffff8881447c54c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xfe/0x710
[ 236.741084][ T27]
[ 236.743433][ T27] =============================================
[ 236.743433][ T27]
[ 236.751931][ T27] NMI backtrace for cpu 0
[ 236.756291][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 6.1.138-syzkaller #0
[ 236.764244][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025
[ 236.774316][ T27] Call Trace:
[ 236.777601][ T27]
[ 236.780548][ T27] dump_stack_lvl+0x168/0x22e
[ 236.785239][ T27] ? show_regs_print_info+0x12/0x12
[ 236.790448][ T27] ? load_image+0x3b0/0x3b0
[ 236.794976][ T27] ? vprintk_emit+0x571/0x680
[ 236.799671][ T27] ? printk_sprint+0x460/0x460
[ 236.804539][ T27] nmi_cpu_backtrace+0x3f4/0x470
[ 236.809670][ T27] ? nmi_trigger_cpumask_backtrace+0x450/0x450
[ 236.815845][ T27] ? _printk+0xcc/0x110
[ 236.820011][ T27] ? load_image+0x3b0/0x3b0
[ 236.824519][ T27] ? load_image+0x3b0/0x3b0
[ 236.829037][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10
[ 236.835120][ T27] nmi_trigger_cpumask_backtrace+0x1d4/0x450
[ 236.841116][ T27] watchdog+0xeee/0xf30
[ 236.845279][ T27] ? watchdog+0x1ed/0xf30
[ 236.849616][ T27] kthread+0x29d/0x330
[ 236.853701][ T27] ? hungtask_pm_notify+0x40/0x40
[ 236.859630][ T27] ? kthread_blkcg+0xd0/0xd0
[ 236.864296][ T27] ret_from_fork+0x1f/0x30
[ 236.868745][ T27]
[ 236.871914][ T27] Sending NMI from CPU 0 to CPUs 1:
[ 236.877175][ C1] NMI backtrace for cpu 1 skipped: idling at default_idle+0xb/0x10
[ 236.878227][ T27] Kernel panic - not syncing: hung_task: blocked tasks
[ 236.892959][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 6.1.138-syzkaller #0
[ 236.900844][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025
[ 236.910903][ T27] Call Trace:
[ 236.914202][ T27]
[ 236.917138][ T27] dump_stack_lvl+0x168/0x22e
[ 236.921836][ T27] ? memcpy+0x3c/0x60
[ 236.925824][ T27] ? show_regs_print_info+0x12/0x12
[ 236.931036][ T27] ? load_image+0x3b0/0x3b0
[ 236.935550][ T27] panic+0x2c9/0x710
[ 236.939457][ T27] ? schedule_preempt_disabled+0x20/0x20
[ 236.945088][ T27] ? bpf_jit_dump+0xd0/0xd0
[ 236.949605][ T27] ? nmi_trigger_cpumask_backtrace+0x35b/0x450
[ 236.955770][ T27] ? nmi_trigger_cpumask_backtrace+0x360/0x450
[ 236.961932][ T27] watchdog+0xf2d/0xf30
[ 236.966094][ T27] ? watchdog+0x1ed/0xf30
[ 236.970435][ T27] kthread+0x29d/0x330
[ 236.974508][ T27] ? hungtask_pm_notify+0x40/0x40
[ 236.979528][ T27] ? kthread_blkcg+0xd0/0xd0
[ 236.984124][ T27] ret_from_fork+0x1f/0x30
[ 236.988558][ T27]
[ 236.991892][ T27] Kernel Offset: disabled
[ 236.996228][ T27] Rebooting in 86400 seconds..