Warning: Permanently added '10.128.10.43' (ECDSA) to the list of known hosts. executing program [ 516.754021][ T3067] nbd0: detected capacity change from 0 to 18 [ 521.723998][ T3067] block nbd0: shutting down sockets [ 547.043407][ T50] block nbd0: Possible stuck request 00000000ac6203d2: control (read@0,4096B). Runtime 30 seconds [ 576.824537][ T2561] udevd[2561]: worker [3069] /devices/virtual/block/nbd0 is taking a long time [ 577.123331][ T50] block nbd0: Possible stuck request 00000000ac6203d2: control (read@0,4096B). Runtime 60 seconds [ 607.203427][ T50] block nbd0: Possible stuck request 00000000ac6203d2: control (read@0,4096B). Runtime 90 seconds [ 637.283424][ T50] block nbd0: Possible stuck request 00000000ac6203d2: control (read@0,4096B). Runtime 120 seconds [ 667.363435][ T50] block nbd0: Possible stuck request 00000000ac6203d2: control (read@0,4096B). Runtime 150 seconds [ 696.967451][ T2561] udevd[2561]: worker [3069] /devices/virtual/block/nbd0 timeout; kill it [ 696.969646][ T2561] udevd[2561]: seq 6710 '/devices/virtual/block/nbd0' killed [ 696.969682][ T3069] ldm_validate_partition_table(): Disk read failed. [ 696.972155][ T3069] Dev nbd0: unable to read RDB block 0 [ 696.973360][ T3069] nbd0: unable to read partition table [ 696.974458][ T3069] nbd0: partition table beyond EOD, truncated executing program [ 696.977797][ T3076] nbd0: detected capacity change from 0 to 18 [ 696.979426][ T2561] udevd[2561]: worker [3069] terminated by signal 9 (Killed) [ 696.981124][ T2561] udevd[2561]: worker [3069] failed while handling '/devices/virtual/block/nbd0' [ 697.443336][ T50] block nbd0: Possible stuck request 00000000ac6203d2: control (read@0,4096B). Runtime 180 seconds [ 727.523417][ T50] block nbd0: Possible stuck request 00000000ac6203d2: control (read@0,4096B). Runtime 210 seconds [ 757.603411][ T50] block nbd0: Possible stuck request 00000000ac6203d2: control (read@0,4096B). Runtime 240 seconds [ 760.053417][ T2561] udevd[2561]: worker [3077] /devices/virtual/block/nbd0 is taking a long time [ 787.683362][ T50] block nbd0: Possible stuck request 00000000ac6203d2: control (read@0,4096B). Runtime 270 seconds [ 817.763431][ T50] block nbd0: Possible stuck request 00000000ac6203d2: control (read@0,4096B). Runtime 300 seconds [ 847.843420][ T50] block nbd0: Possible stuck request 00000000ac6203d2: control (read@0,4096B). Runtime 330 seconds [ 858.083441][ T27] INFO: task syz-executor427:3076 blocked for more than 143 seconds. [ 858.085115][ T27] Not tainted 6.0.0-rc7-syzkaller-18095-gbbed346d5a96 #0 [ 858.086666][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 858.088407][ T27] task:syz-executor427 state:D stack: 0 pid: 3076 ppid: 3066 flags:0x00000001 [ 858.090248][ T27] Call trace: [ 858.090881][ T27] __switch_to+0x180/0x298 [ 858.091794][ T27] __schedule+0x414/0x5a0 [ 858.092699][ T27] schedule+0x64/0xa4 [ 858.093638][ T27] blk_mq_freeze_queue_wait+0x94/0xf4 [ 858.094690][ T27] blk_freeze_queue+0x94/0xa8 [ 858.095621][ T27] blk_mq_freeze_queue+0x20/0x30 [ 858.096595][ T27] nbd_add_socket+0x78/0x27c [ 858.097515][ T27] __nbd_ioctl+0x80/0x334 [ 858.098380][ T27] nbd_ioctl+0xec/0x13c [ 858.099192][ T27] blkdev_ioctl+0x24c/0x6d8 [ 858.100079][ T27] __arm64_sys_ioctl+0xd0/0x140 [ 858.101045][ T27] el0_svc_common+0x138/0x220 [ 858.101985][ T27] do_el0_svc+0x48/0x164 [ 858.102852][ T27] el0_svc+0x58/0x150 [ 858.103742][ T27] el0t_64_sync_handler+0x84/0xf0 [ 858.104748][ T27] el0t_64_sync+0x18c/0x190 [ 858.105634][ T27] INFO: task udevd:3077 blocked for more than 143 seconds. [ 858.107085][ T27] Not tainted 6.0.0-rc7-syzkaller-18095-gbbed346d5a96 #0 [ 858.108618][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 858.110329][ T27] task:udevd state:D stack: 0 pid: 3077 ppid: 2561 flags:0x00000000 [ 858.112126][ T27] Call trace: [ 858.112783][ T27] __switch_to+0x180/0x298 [ 858.113735][ T27] __schedule+0x414/0x5a0 [ 858.114585][ T27] schedule+0x64/0xa4 [ 858.115384][ T27] io_schedule+0x38/0xbc [ 858.116233][ T27] folio_wait_bit_common+0x458/0xa44 [ 858.117277][ T27] do_read_cache_folio+0x78/0x588 [ 858.118304][ T27] read_cache_folio+0x40/0x54 [ 858.119246][ T27] read_part_sector+0x60/0x1d8 [ 858.120241][ T27] adfspart_check_ICS+0x4c/0x3b4 [ 858.121267][ T27] bdev_disk_changed+0x364/0x66c [ 858.122224][ T27] blkdev_get_whole+0x1b0/0x208 [ 858.123212][ T27] blkdev_get_by_dev+0x178/0x2fc [ 858.124304][ T27] blkdev_open+0x84/0xd8 [ 858.125146][ T27] do_dentry_open+0x330/0x6d0 [ 858.126150][ T27] vfs_open+0x38/0x48 [ 858.126947][ T27] path_openat+0xe34/0x11c4 [ 858.127837][ T27] do_filp_open+0xdc/0x1b8 [ 858.128705][ T27] do_sys_openat2+0xb8/0x22c [ 858.129622][ T27] __arm64_sys_openat+0xb0/0xe0 [ 858.130591][ T27] el0_svc_common+0x138/0x220 [ 858.131550][ T27] do_el0_svc+0x48/0x164 [ 858.132381][ T27] el0_svc+0x58/0x150 [ 858.133184][ T27] el0t_64_sync_handler+0x84/0xf0 [ 858.134258][ T27] el0t_64_sync+0x18c/0x190 [ 858.135149][ T27] [ 858.135149][ T27] Showing all locks held in the system: [ 858.136692][ T27] 1 lock held by rcu_tasks_kthre/11: [ 858.137762][ T27] #0: ffff80000d433568 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x3c/0x450 [ 858.139899][ T27] 1 lock held by rcu_tasks_trace/12: [ 858.140935][ T27] #0: ffff80000d433bb8 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x3c/0x450 [ 858.143162][ T27] 1 lock held by khungtaskd/27: [ 858.144197][ T27] #0: ffff80000d433440 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x4/0x48 [ 858.146138][ T27] 2 locks held by getty/2717: [ 858.147067][ T27] #0: ffff0000c62d9098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x28/0x58 [ 858.149059][ T27] #1: ffff80000f6162f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x19c/0x89c [ 858.151135][ T27] 1 lock held by syz-executor427/3076: [ 858.152192][ T27] #0: ffff0000c0f58d98 (&nbd->config_lock){+.+.}-{3:3}, at: nbd_ioctl+0x70/0x13c [ 858.154184][ T27] 1 lock held by udevd/3077: [ 858.155122][ T27] #0: ffff0000c4abfcc8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0xfc/0x2fc [ 858.157162][ T27] [ 858.157622][ T27] ============================================= [ 858.157622][ T27] [ 858.159290][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 858.160705][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 6.0.0-rc7-syzkaller-18095-gbbed346d5a96 #0 [ 858.162734][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022 [ 858.164804][ T27] Call trace: [ 858.165485][ T27] dump_backtrace+0x1c4/0x1f0 [ 858.166457][ T27] show_stack+0x2c/0x54 [ 858.167339][ T27] dump_stack_lvl+0x104/0x16c [ 858.168294][ T27] dump_stack+0x1c/0x58 [ 858.169150][ T27] panic+0x218/0x50c [ 858.169975][ T27] hung_task_panic+0x0/0x2c [ 858.170907][ T27] kthread+0x12c/0x158 [ 858.171763][ T27] ret_from_fork+0x10/0x20 [ 858.172741][ T27] SMP: stopping secondary CPUs [ 858.173729][ T27] Kernel Offset: disabled [ 858.174614][ T27] CPU features: 0x00000,02070084,26017203 [ 858.175810][ T27] Memory Limit: none [ 858.352970][ T27] Rebooting in 86400 seconds..