Warning: Permanently added '10.128.0.22' (ED25519) to the list of known hosts. Setting up swapspace version 1, size = 127995904 bytes [ 127.919894][ T4318] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS executing program [ 128.037556][ T4323] nbd0: detected capacity change from 0 to 4294967296 [ 128.181941][ T47] block nbd0: Receive control failed (result -104) [ 128.182619][ T4323] block nbd0: shutting down sockets [ 128.186760][ C1] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 128.189369][ C1] Buffer I/O error on dev nbd0, logical block 0, async page read [ 128.191532][ T4325] ldm_validate_partition_table(): Disk read failed. [ 128.193398][ T4325] Dev nbd0: unable to read RDB block 0 [ 128.194853][ T4325] nbd0: unable to read partition table [ 128.196591][ T4325] nbd0: partition table beyond EOD, truncated executing program [ 128.203022][ T4327] nbd0: detected capacity change from 0 to 4294967296 [ 128.236435][ T4327] block nbd0: Device being setup by another task [ 128.238378][ T51] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 128.240931][ T51] Buffer I/O error on dev nbd0, logical block 0, async page read [ 128.243157][ T1888] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 128.245675][ T1888] Buffer I/O error on dev nbd0, logical block 0, async page read [ 128.247957][ T51] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 128.250450][ T51] Buffer I/O error on dev nbd0, logical block 0, async page read [ 128.252821][ T1888] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 128.255232][ T1888] Buffer I/O error on dev nbd0, logical block 0, async page read [ 128.257476][ T51] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 128.259913][ T51] Buffer I/O error on dev nbd0, logical block 0, async page read [ 128.262112][ T1888] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 128.264619][ T1888] Buffer I/O error on dev nbd0, logical block 0, async page read [ 128.266861][ T51] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 128.269389][ T51] Buffer I/O error on dev nbd0, logical block 0, async page read [ 128.271616][ T51] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 128.273973][ T51] Buffer I/O error on dev nbd0, logical block 0, async page read [ 128.276155][ T4325] ldm_validate_partition_table(): Disk read failed. [ 128.278112][ T51] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 128.280526][ T51] Buffer I/O error on dev nbd0, logical block 0, async page read [ 128.282943][ T4325] Dev nbd0: unable to read RDB block 0 [ 128.285034][ T4325] nbd0: unable to read partition table [ 128.290415][ T4325] ldm_validate_partition_table(): Disk read failed. executing program [ 128.292632][ T4325] Dev nbd0: unable to read RDB block 0 [ 128.294459][ T4325] nbd0: unable to read partition table [ 128.297375][ T4329] ldm_validate_partition_table(): Disk read failed. [ 128.299595][ T4329] Dev nbd0: unable to read RDB block 0 [ 128.301488][ T4329] nbd0: unable to read partition table [ 128.336282][ T4329] block nbd0: Device being setup by another task [ 128.338798][ T4325] ldm_validate_partition_table(): Disk read failed. [ 128.340965][ T4325] Dev nbd0: unable to read RDB block 0 [ 128.342824][ T4325] nbd0: unable to read partition table [ 128.347667][ T4325] ldm_validate_partition_table(): Disk read failed. [ 128.349816][ T4325] Dev nbd0: unable to read RDB block 0 [ 128.351682][ T4325] nbd0: unable to read partition table executing program [ 128.357983][ T4331] ldm_validate_partition_table(): Disk read failed. [ 128.360147][ T4331] Dev nbd0: unable to read RDB block 0 [ 128.362000][ T4331] nbd0: unable to read partition table [ 128.416373][ T4331] block nbd0: Device being setup by another task [ 128.418956][ T4325] ldm_validate_partition_table(): Disk read failed. [ 128.421124][ T4325] Dev nbd0: unable to read RDB block 0 [ 128.422943][ T4325] nbd0: unable to read partition table [ 128.426918][ T4325] ldm_validate_partition_table(): Disk read failed. [ 128.429046][ T4325] Dev nbd0: unable to read RDB block 0 [ 128.430899][ T4325] nbd0: unable to read partition table executing program [ 128.487276][ T4334] nbd0: detected capacity change from 0 to 4294967296 [ 128.648091][ T47] block nbd0: Receive control failed (result -104) [ 128.648510][ T4334] block nbd0: shutting down sockets [ 128.656785][ T4325] ldm_validate_partition_table(): Disk read failed. [ 128.658596][ T4325] Dev nbd0: unable to read RDB block 0 [ 128.660067][ T4325] nbd0: unable to read partition table [ 128.661678][ T4325] nbd0: partition table beyond EOD, truncated executing program [ 128.707138][ T4336] nbd0: detected capacity change from 0 to 4294967296 [ 128.870048][ T47] block nbd0: Receive control failed (result -104) [ 128.870415][ T4336] block nbd0: shutting down sockets [ 128.875440][ T4325] ldm_validate_partition_table(): Disk read failed. [ 128.877431][ T4325] Dev nbd0: unable to read RDB block 0 [ 128.879029][ T4325] nbd0: unable to read partition table [ 128.880662][ T4325] nbd0: partition table beyond EOD, truncated executing program [ 128.936859][ T4338] nbd0: detected capacity change from 0 to 4294967296 [ 129.098954][ T47] block nbd0: Receive control failed (result -104) [ 129.099243][ T4338] block nbd0: shutting down sockets [ 129.106927][ T4325] ldm_validate_partition_table(): Disk read failed. [ 129.108683][ T4325] Dev nbd0: unable to read RDB block 0 [ 129.110230][ T4325] nbd0: unable to read partition table [ 129.111728][ T4325] nbd0: partition table beyond EOD, truncated executing program [ 129.157362][ T4340] nbd0: detected capacity change from 0 to 4294967296 [ 129.319027][ T47] block nbd0: Receive control failed (result -104) [ 129.321546][ T4340] block nbd0: shutting down sockets [ 129.323250][ T4325] ldm_validate_partition_table(): Disk read failed. [ 129.325204][ T4325] Dev nbd0: unable to read RDB block 0 [ 129.326850][ T4325] nbd0: unable to read partition table [ 129.328576][ T4325] nbd0: partition table beyond EOD, truncated executing program [ 129.387001][ T4342] nbd0: detected capacity change from 0 to 4294967296 [ 129.548925][ T47] block nbd0: Receive control failed (result -104) [ 129.549255][ T4342] block nbd0: shutting down sockets [ 129.556776][ T4325] ldm_validate_partition_table(): Disk read failed. [ 129.558742][ T4325] Dev nbd0: unable to read RDB block 0 [ 129.560208][ T4325] nbd0: unable to read partition table [ 129.561762][ T4325] nbd0: partition table beyond EOD, truncated executing program [ 129.607128][ T4344] nbd0: detected capacity change from 0 to 4294967296 [ 129.768726][ T47] block nbd0: Receive control failed (result -104) [ 159.846932][ T1888] block nbd0: Possible stuck request 0000000097a969b1: control (read@0,4096B). Runtime 30 seconds [ 189.681006][ T3914] udevd[3914]: worker [4325] /devices/virtual/block/nbd0 is taking a long time [ 189.926450][ T1888] block nbd0: Possible stuck request 0000000097a969b1: control (read@0,4096B). Runtime 60 seconds [ 220.006424][ T1888] block nbd0: Possible stuck request 0000000097a969b1: control (read@0,4096B). Runtime 90 seconds [ 250.086479][ T1888] block nbd0: Possible stuck request 0000000097a969b1: control (read@0,4096B). Runtime 120 seconds [ 280.166512][ T1888] block nbd0: Possible stuck request 0000000097a969b1: control (read@0,4096B). Runtime 150 seconds [ 284.646401][ T28] INFO: task syz-executor182:4344 blocked for more than 143 seconds. [ 284.648819][ T28] Not tainted 6.1.141-syzkaller #0 [ 284.650385][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 284.652845][ T28] task:syz-executor182 state:D stack:0 pid:4344 ppid:4320 flags:0x0000000d [ 284.655224][ T28] Call trace: [ 284.656082][ T28] __switch_to+0x2f4/0x568 [ 284.657350][ T28] __schedule+0xdd4/0x1b2c [ 284.658565][ T28] schedule+0xc4/0x170 [ 284.659784][ T28] schedule_preempt_disabled+0x18/0x2c [ 284.661277][ T28] __mutex_lock_common+0xad4/0x1f38 [ 284.662739][ T28] mutex_lock_nested+0x38/0x44 [ 284.664039][ T28] blkdev_put+0xe8/0x6c8 [ 284.665169][ T28] blkdev_close+0x50/0x90 [ 284.666407][ T28] __fput+0x1bc/0x7c0 [ 284.667549][ T28] ____fput+0x20/0x30 [ 284.668705][ T28] task_work_run+0x1ec/0x270 [ 284.669958][ T28] get_signal+0x1120/0x1310 [ 284.671249][ T28] do_notify_resume+0x340/0x2b0c [ 284.672585][ T28] el0_svc+0x98/0x138 [ 284.673607][ T28] el0t_64_sync_handler+0x84/0xf0 [ 284.674973][ T28] el0t_64_sync+0x18c/0x190 [ 284.676308][ T28] [ 284.676308][ T28] Showing all locks held in the system: [ 284.678416][ T28] 1 lock held by rcu_tasks_kthre/12: [ 284.679893][ T28] #0: ffff800015247670 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x40/0xbb4 [ 284.682840][ T28] 1 lock held by rcu_tasks_trace/13: [ 284.684260][ T28] #0: ffff800015247e90 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x40/0xbb4 [ 284.687453][ T28] 1 lock held by khungtaskd/28: [ 284.688863][ T28] #0: ffff800015246d00 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 [ 284.691617][ T28] 2 locks held by getty/4063: [ 284.692948][ T28] #0: ffff0000d7f48098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c [ 284.695433][ T28] #1: ffff80001ce602f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2ec/0xf9c [ 284.698139][ T28] 1 lock held by udevd/4325: [ 284.699298][ T28] #0: ffff0000ce98a4c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x118/0x8cc [ 284.702026][ T28] 1 lock held by syz-executor182/4344: [ 284.703460][ T28] #0: ffff0000ce98a4c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xe8/0x6c8 [ 284.706290][ T28] [ 284.706931][ T28] ============================================= [ 284.706931][ T28] [ 284.709161][ T28] Kernel panic - not syncing: hung_task: blocked tasks [ 284.711130][ T28] CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.1.141-syzkaller #0 [ 284.713305][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 284.715971][ T28] Call trace: [ 284.716884][ T28] dump_backtrace+0x1c8/0x1f4 [ 284.718118][ T28] show_stack+0x2c/0x3c [ 284.719250][ T28] __dump_stack+0x30/0x40 [ 284.720427][ T28] dump_stack_lvl+0xf8/0x160 [ 284.721716][ T28] dump_stack+0x1c/0x5c [ 284.722864][ T28] panic+0x2e0/0x79c [ 284.723917][ T28] hung_task_panic+0x0/0x2c [ 284.725195][ T28] kthread+0x250/0x2d8 [ 284.726331][ T28] ret_from_fork+0x10/0x20 [ 284.727550][ T28] SMP: stopping secondary CPUs [ 284.728922][ T28] Kernel Offset: disabled [ 284.730128][ T28] CPU features: 0x080000,02070084,26017203 [ 284.731753][ T28] Memory Limit: none [ 285.012256][ T28] Rebooting in 86400 seconds..