Warning: Permanently added '10.128.0.101' (ED25519) to the list of known hosts. executing program [ 678.989269][ T6149] nbd0: detected capacity change from 0 to 4194303 [ 679.101853][ T5675] block nbd0: Receive control failed (result -104) [ 679.102211][ T6148] block nbd0: shutting down sockets [ 679.106161][ C1] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 679.108179][ C1] Buffer I/O error on dev nbd0, logical block 0, async page read [ 679.110022][ T6145] ldm_validate_partition_table(): Disk read failed. [ 679.111591][ T6145] Dev nbd0: unable to read RDB block 0 [ 679.112812][ T6145] nbd0: unable to read partition table [ 679.114125][ T6145] nbd0: partition table beyond EOD, truncated executing program [ 679.219146][ T6152] nbd0: detected capacity change from 0 to 4194303 [ 679.331355][ T5675] block nbd0: Receive control failed (result -104) [ 679.331594][ T6151] block nbd0: shutting down sockets [ 679.334335][ C0] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 679.336188][ C0] Buffer I/O error on dev nbd0, logical block 0, async page read [ 679.338197][ T6145] ldm_validate_partition_table(): Disk read failed. [ 679.339670][ T6145] Dev nbd0: unable to read RDB block 0 [ 679.340924][ T6145] nbd0: unable to read partition table [ 679.342227][ T6145] nbd0: partition table beyond EOD, truncated executing program [ 679.449638][ T6154] nbd0: detected capacity change from 0 to 4194303 [ 679.561988][ T5675] block nbd0: Receive control failed (result -104) [ 679.562926][ T6155] block nbd0: shutting down sockets [ 679.566074][ C0] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 679.568214][ C0] Buffer I/O error on dev nbd0, logical block 0, async page read [ 679.570046][ T6145] ldm_validate_partition_table(): Disk read failed. [ 679.571628][ T6145] Dev nbd0: unable to read RDB block 0 [ 679.572770][ T6145] nbd0: unable to read partition table [ 679.574015][ T6145] nbd0: partition table beyond EOD, truncated executing program [ 679.681570][ T6157] nbd0: detected capacity change from 0 to 4194303 [ 679.793194][ T5675] block nbd0: Receive control failed (result -104) [ 679.793991][ T6158] block nbd0: shutting down sockets [ 679.796226][ C0] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 679.798260][ C0] Buffer I/O error on dev nbd0, logical block 0, async page read [ 679.800015][ T6145] ldm_validate_partition_table(): Disk read failed. [ 679.801690][ T6145] Dev nbd0: unable to read RDB block 0 [ 679.802915][ T6145] nbd0: unable to read partition table [ 679.804314][ T6145] nbd0: partition table beyond EOD, truncated executing program [ 679.899117][ T6161] nbd0: detected capacity change from 0 to 4194303 [ 680.011303][ T5675] block nbd0: Receive control failed (result -104) [ 680.011749][ T6160] block nbd0: shutting down sockets [ 680.015366][ C0] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 680.017548][ C0] Buffer I/O error on dev nbd0, logical block 0, async page read [ 680.019340][ T6145] ldm_validate_partition_table(): Disk read failed. [ 680.020918][ T6145] Dev nbd0: unable to read RDB block 0 [ 680.022063][ T6145] nbd0: unable to read partition table [ 680.023474][ T6145] nbd0: partition table beyond EOD, truncated executing program [ 680.120171][ T6164] nbd0: detected capacity change from 0 to 4194303 [ 680.231826][ T5675] block nbd0: Receive control failed (result -104) [ 680.232058][ T6163] block nbd0: shutting down sockets [ 680.234585][ C1] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 680.236569][ C1] Buffer I/O error on dev nbd0, logical block 0, async page read [ 680.238553][ T6145] ldm_validate_partition_table(): Disk read failed. [ 680.240174][ T6145] Dev nbd0: unable to read RDB block 0 [ 680.241416][ T6145] nbd0: unable to read partition table [ 680.242707][ T6145] nbd0: partition table beyond EOD, truncated executing program [ 680.349105][ T6167] nbd0: detected capacity change from 0 to 4194303 [ 680.461483][ T5675] block nbd0: Receive control failed (result -104) [ 680.461922][ T6166] block nbd0: shutting down sockets [ 680.465317][ C1] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 680.467483][ C1] Buffer I/O error on dev nbd0, logical block 0, async page read [ 680.469256][ T6145] ldm_validate_partition_table(): Disk read failed. [ 680.470778][ T6145] Dev nbd0: unable to read RDB block 0 [ 680.472023][ T6145] nbd0: unable to read partition table [ 680.473390][ T6145] nbd0: partition table beyond EOD, truncated executing program [ 680.579153][ T6170] nbd0: detected capacity change from 0 to 4194303 [ 680.691448][ T5675] block nbd0: Receive control failed (result -104) [ 680.691622][ T6169] block nbd0: shutting down sockets [ 680.694261][ C0] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 680.696267][ C0] Buffer I/O error on dev nbd0, logical block 0, async page read [ 680.698016][ T6145] ldm_validate_partition_table(): Disk read failed. [ 680.699482][ T6145] Dev nbd0: unable to read RDB block 0 [ 680.700717][ T6145] nbd0: unable to read partition table [ 680.702089][ T6145] nbd0: partition table beyond EOD, truncated executing program [ 680.809528][ T6172] nbd0: detected capacity change from 0 to 4194303 [ 680.921986][ T5675] block nbd0: Receive control failed (result -104) [ 680.922284][ T6173] block nbd0: shutting down sockets [ 680.925009][ C1] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 680.927147][ C1] Buffer I/O error on dev nbd0, logical block 0, async page read [ 680.929207][ T6145] ldm_validate_partition_table(): Disk read failed. [ 680.930689][ T6145] Dev nbd0: unable to read RDB block 0 [ 680.931885][ T6145] nbd0: unable to read partition table [ 680.933217][ T6145] nbd0: partition table beyond EOD, truncated executing program [ 681.040649][ T6175] nbd0: detected capacity change from 0 to 4194303 [ 681.152733][ T5675] block nbd0: Receive control failed (result -104) [ 681.153064][ T6176] block nbd0: shutting down sockets [ 681.156745][ C0] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 681.158892][ C0] Buffer I/O error on dev nbd0, logical block 0, async page read [ 681.160705][ T6145] ldm_validate_partition_table(): Disk read failed. [ 681.162184][ T6145] Dev nbd0: unable to read RDB block 0 [ 681.163488][ T6145] nbd0: unable to read partition table [ 681.164751][ T6145] nbd0: partition table beyond EOD, truncated executing program [ 681.269044][ T6179] nbd0: detected capacity change from 0 to 4194303 [ 681.381428][ T5675] block nbd0: Receive control failed (result -104) [ 681.381682][ T6178] block nbd0: shutting down sockets [ 681.385575][ T6145] ldm_validate_partition_table(): Disk read failed. [ 681.386944][ T6145] Dev nbd0: unable to read RDB block 0 [ 681.388339][ T6145] nbd0: unable to read partition table [ 681.389629][ T6145] nbd0: partition table beyond EOD, truncated executing program [ 681.479105][ T6182] nbd0: detected capacity change from 0 to 4194303 [ 681.591060][ T5675] block nbd0: Receive control failed (result -104) [ 681.591459][ T6181] block nbd0: shutting down sockets [ 681.595140][ T6145] ldm_validate_partition_table(): Disk read failed. [ 681.596675][ T6145] Dev nbd0: unable to read RDB block 0 [ 681.598003][ T6145] nbd0: unable to read partition table [ 681.599300][ T6145] nbd0: partition table beyond EOD, truncated executing program [ 681.699131][ T6185] nbd0: detected capacity change from 0 to 4194303 [ 681.812266][ T5675] block nbd0: Receive control failed (result -104) [ 681.812478][ T6184] block nbd0: shutting down sockets [ 681.815250][ T6145] ldm_validate_partition_table(): Disk read failed. [ 681.816745][ T6145] Dev nbd0: unable to read RDB block 0 [ 681.817995][ T6145] nbd0: unable to read partition table [ 681.819406][ T6145] nbd0: partition table beyond EOD, truncated executing program [ 681.927615][ T6187] nbd0: detected capacity change from 0 to 4194303 [ 682.039218][ T5675] block nbd0: Receive control failed (result -104) [ 682.039697][ T6188] block nbd0: shutting down sockets [ 682.043201][ T6145] ldm_validate_partition_table(): Disk read failed. [ 682.044670][ T6145] Dev nbd0: unable to read RDB block 0 [ 682.045955][ T6145] nbd0: unable to read partition table [ 682.047303][ T6145] nbd0: partition table beyond EOD, truncated executing program [ 682.154572][ T6190] nbd0: detected capacity change from 0 to 4194303 [ 682.267910][ T5675] block nbd0: Receive control failed (result -104) [ 682.268357][ T6191] block nbd0: shutting down sockets [ 682.271982][ T6145] ldm_validate_partition_table(): Disk read failed. [ 682.273427][ T6145] Dev nbd0: unable to read RDB block 0 [ 682.274758][ T6145] nbd0: unable to read partition table [ 682.276077][ T6145] nbd0: partition table beyond EOD, truncated executing program [ 682.379089][ T6194] nbd0: detected capacity change from 0 to 4194303 [ 682.491381][ T5675] block nbd0: Receive control failed (result -104) [ 682.491608][ T6193] block nbd0: shutting down sockets [ 682.494352][ T6145] ldm_validate_partition_table(): Disk read failed. [ 682.495773][ T6145] Dev nbd0: unable to read RDB block 0 [ 682.496964][ T6145] nbd0: unable to read partition table [ 682.498307][ T6145] nbd0: partition table beyond EOD, truncated executing program [ 682.589022][ T6197] nbd0: detected capacity change from 0 to 4194303 [ 682.700850][ T5675] block nbd0: Receive control failed (result -104) [ 682.701082][ T6196] block nbd0: shutting down sockets [ 682.704820][ T6145] ldm_validate_partition_table(): Disk read failed. [ 682.706350][ T6145] Dev nbd0: unable to read RDB block 0 [ 682.707646][ T6145] nbd0: unable to read partition table [ 682.708997][ T6145] nbd0: partition table beyond EOD, truncated executing program [ 682.809056][ T6200] nbd0: detected capacity change from 0 to 4194303 [ 682.921726][ T5675] block nbd0: Receive control failed (result -104) [ 682.921957][ T6199] block nbd0: shutting down sockets [ 682.924685][ T6145] ldm_validate_partition_table(): Disk read failed. [ 682.926212][ T6145] Dev nbd0: unable to read RDB block 0 [ 682.927551][ T6145] nbd0: unable to read partition table [ 682.928835][ T6145] nbd0: partition table beyond EOD, truncated executing program [ 683.029086][ T6203] nbd0: detected capacity change from 0 to 4194303 [ 683.141124][ T5675] block nbd0: Receive control failed (result -104) [ 683.141329][ T6202] block nbd0: shutting down sockets [ 683.145134][ T6145] ldm_validate_partition_table(): Disk read failed. [ 683.146610][ T6145] Dev nbd0: unable to read RDB block 0 [ 683.147955][ T6145] nbd0: unable to read partition table [ 683.149238][ T6145] nbd0: partition table beyond EOD, truncated executing program [ 683.239117][ T6206] nbd0: detected capacity change from 0 to 4194303 [ 683.351576][ T5675] block nbd0: Receive control failed (result -104) [ 683.352007][ T6205] block nbd0: shutting down sockets [ 683.355862][ T6145] ldm_validate_partition_table(): Disk read failed. [ 683.357257][ T6145] Dev nbd0: unable to read RDB block 0 [ 683.358525][ T6145] nbd0: unable to read partition table [ 683.359794][ T6145] nbd0: partition table beyond EOD, truncated executing program [ 683.449043][ T6209] nbd0: detected capacity change from 0 to 4194303 [ 683.561765][ T5675] block nbd0: Receive control failed (result -104) [ 683.561924][ T6208] block nbd0: shutting down sockets [ 683.564839][ T6145] ldm_validate_partition_table(): Disk read failed. [ 683.566287][ T6145] Dev nbd0: unable to read RDB block 0 [ 683.567577][ T6145] nbd0: unable to read partition table [ 683.568928][ T6145] nbd0: partition table beyond EOD, truncated executing program [ 683.675565][ T6211] nbd0: detected capacity change from 0 to 4194303 [ 683.789268][ T5675] block nbd0: Receive control failed (result -104) [ 683.789562][ T6212] block nbd0: shutting down sockets [ 683.792277][ T6145] ldm_validate_partition_table(): Disk read failed. [ 683.793731][ T6145] Dev nbd0: unable to read RDB block 0 [ 683.795025][ T6145] nbd0: unable to read partition table [ 683.796308][ T6145] nbd0: partition table beyond EOD, truncated executing program [ 683.899061][ T6215] nbd0: detected capacity change from 0 to 4194303 [ 684.011633][ T5675] block nbd0: Receive control failed (result -104) [ 684.011930][ T6214] block nbd0: shutting down sockets [ 684.018788][ T6145] ldm_validate_partition_table(): Disk read failed. [ 684.020371][ T6145] Dev nbd0: unable to read RDB block 0 [ 684.021725][ T6145] nbd0: unable to read partition table [ 684.023104][ T6145] nbd0: partition table beyond EOD, truncated executing program [ 684.087758][ T6217] block nbd0: Device being setup by another task [ 684.089611][ T6217] nbd0: detected capacity change from 0 to 4194303 executing program [ 684.208515][ T6219] nbd0: detected capacity change from 0 to 4194303 [ 684.321830][ T5675] block nbd0: Receive control failed (result -104) [ 714.730961][ T54] block nbd0: Possible stuck request 00000000011c2773: control (read@0,4096B). Runtime 30 seconds [ 744.284302][ T5717] udevd[5717]: worker [6145] /devices/virtual/block/nbd0 is taking a long time [ 744.807782][ T54] block nbd0: Possible stuck request 00000000011c2773: control (read@0,4096B). Runtime 60 seconds [ 774.887826][ T54] block nbd0: Possible stuck request 00000000011c2773: control (read@0,4096B). Runtime 90 seconds [ 804.967779][ T54] block nbd0: Possible stuck request 00000000011c2773: control (read@0,4096B). Runtime 120 seconds [ 835.047788][ T54] block nbd0: Possible stuck request 00000000011c2773: control (read@0,4096B). Runtime 150 seconds [ 858.087605][ T29] INFO: task syz-executor983:6220 blocked for more than 143 seconds. [ 858.089489][ T29] Not tainted 6.7.0-rc8-syzkaller-g0802e17d9aca #0 [ 858.091156][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 858.093074][ T29] task:syz-executor983 state:D stack:0 pid:6220 tgid:6218 ppid:6144 flags:0x0000000d [ 858.095374][ T29] Call trace: [ 858.096094][ T29] __switch_to+0x314/0x560 [ 858.097172][ T29] __schedule+0x1354/0x2360 [ 858.098329][ T29] schedule+0xb8/0x19c [ 858.099233][ T29] schedule_preempt_disabled+0x18/0x2c [ 858.100341][ T29] __mutex_lock_common+0xbd8/0x21a0 [ 858.101416][ T29] mutex_lock_nested+0x2c/0x38 [ 858.102451][ T29] blkdev_put+0xec/0x740 [ 858.103334][ T29] bdev_release+0x5c/0x78 [ 858.104338][ T29] blkdev_release+0x40/0x54 [ 858.105266][ T29] __fput+0x308/0x8e4 [ 858.106104][ T29] ____fput+0x20/0x30 [ 858.106933][ T29] task_work_run+0x230/0x2e0 [ 858.107989][ T29] get_signal+0x13f4/0x15ec [ 858.108930][ T29] do_notify_resume+0x3bc/0x393c [ 858.109957][ T29] el0_svc+0x9c/0x158 [ 858.110868][ T29] el0t_64_sync_handler+0x84/0xfc [ 858.111949][ T29] el0t_64_sync+0x190/0x194 [ 858.112947][ T29] [ 858.112947][ T29] Showing all locks held in the system: [ 858.114633][ T29] 1 lock held by khungtaskd/29: [ 858.115681][ T29] #0: ffff80008e6c48c0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 [ 858.117835][ T29] 1 lock held by klogd/5706: [ 858.118789][ T29] #0: ffff0001b4144d98 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x2dc/0x2360 [ 858.120726][ T29] 2 locks held by getty/5866: [ 858.121768][ T29] #0: ffff0000d70320a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c [ 858.123805][ T29] #1: ffff800094e602f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x41c/0x1228 [ 858.126028][ T29] 1 lock held by udevd/6145: [ 858.127033][ T29] #0: ffff0000ca6274c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x114/0x55c [ 858.129312][ T29] 1 lock held by syz-executor983/6220: [ 858.130458][ T29] #0: ffff0000ca6274c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xec/0x740 [ 858.132466][ T29] [ 858.132968][ T29] ============================================= [ 858.132968][ T29] [ 858.134752][ T29] Kernel panic - not syncing: hung_task: blocked tasks [ 858.136189][ T29] CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.7.0-rc8-syzkaller-g0802e17d9aca #0 [ 858.138235][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 858.140382][ T29] Call trace: [ 858.141095][ T29] dump_backtrace+0x1b8/0x1e4 [ 858.142103][ T29] show_stack+0x2c/0x3c [ 858.143015][ T29] dump_stack_lvl+0xd0/0x124 [ 858.144022][ T29] dump_stack+0x1c/0x28 [ 858.145036][ T29] panic+0x30c/0x88c [ 858.145885][ T29] hung_task_panic+0x0/0x2c [ 858.146858][ T29] kthread+0x288/0x310 [ 858.147774][ T29] ret_from_fork+0x10/0x20 [ 858.148734][ T29] SMP: stopping secondary CPUs [ 858.149826][ T29] Kernel Offset: disabled [ 858.150749][ T29] CPU features: 0x0,00000020,7002004a,21017203 [ 858.152042][ T29] Memory Limit: none [ 858.468701][ T29] Rebooting in 86400 seconds..