Warning: Permanently added '10.128.1.19' (ECDSA) to the list of known hosts. executing program [ 497.248325][ T3072] nbd0: detected capacity change from 0 to 502 [ 502.208668][ T3072] block nbd0: shutting down sockets [ 527.837650][ T49] block nbd0: Possible stuck request 00000000e6a31a5c: control (read@0,4096B). Runtime 30 seconds [ 557.319701][ T2560] udevd[2560]: worker [3074] /devices/virtual/block/nbd0 is taking a long time [ 557.917656][ T49] block nbd0: Possible stuck request 00000000e6a31a5c: control (read@0,4096B). Runtime 60 seconds [ 587.997663][ T49] block nbd0: Possible stuck request 00000000e6a31a5c: control (read@0,4096B). Runtime 90 seconds [ 618.077687][ T49] block nbd0: Possible stuck request 00000000e6a31a5c: control (read@0,4096B). Runtime 120 seconds [ 648.157637][ T49] block nbd0: Possible stuck request 00000000e6a31a5c: control (read@0,4096B). Runtime 150 seconds [ 677.463304][ T2560] udevd[2560]: worker [3074] /devices/virtual/block/nbd0 timeout; kill it [ 677.465762][ T2560] udevd[2560]: seq 6711 '/devices/virtual/block/nbd0' killed [ 677.465801][ T3074] ldm_validate_partition_table(): Disk read failed. [ 677.469118][ T3074] Dev nbd0: unable to read RDB block 0 [ 677.470332][ T3074] nbd0: unable to read partition table executing program [ 677.471698][ T3074] nbd0: partition table beyond EOD, truncated [ 677.474962][ T3083] nbd0: detected capacity change from 0 to 502 [ 677.476818][ T2560] udevd[2560]: worker [3074] terminated by signal 9 (Killed) [ 677.478781][ T2560] udevd[2560]: worker [3074] failed while handling '/devices/virtual/block/nbd0' [ 678.237562][ T49] block nbd0: Possible stuck request 00000000e6a31a5c: control (read@0,4096B). Runtime 180 seconds [ 708.317569][ T49] block nbd0: Possible stuck request 00000000e6a31a5c: control (read@0,4096B). Runtime 210 seconds [ 738.397589][ T49] block nbd0: Possible stuck request 00000000e6a31a5c: control (read@0,4096B). Runtime 240 seconds [ 740.551660][ T2560] udevd[2560]: worker [3084] /devices/virtual/block/nbd0 is taking a long time [ 768.477583][ T49] block nbd0: Possible stuck request 00000000e6a31a5c: control (read@0,4096B). Runtime 270 seconds [ 798.557650][ T49] block nbd0: Possible stuck request 00000000e6a31a5c: control (read@0,4096B). Runtime 300 seconds [ 828.637625][ T49] block nbd0: Possible stuck request 00000000e6a31a5c: control (read@0,4096B). Runtime 330 seconds [ 858.077717][ T26] INFO: task syz-executor245:3083 blocked for more than 143 seconds. [ 858.079690][ T26] Not tainted 6.0.0-rc2-syzkaller-16455-ga41a877bc12d #0 [ 858.081453][ T26] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 858.083558][ T26] task:syz-executor245 state:D stack: 0 pid: 3083 ppid: 3071 flags:0x00000001 [ 858.085804][ T26] Call trace: [ 858.086545][ T26] __switch_to+0x180/0x28c [ 858.087651][ T26] __schedule+0x414/0x570 [ 858.088691][ T26] schedule+0x64/0xa4 [ 858.089612][ T26] blk_mq_freeze_queue_wait+0x94/0xf4 [ 858.090867][ T26] blk_freeze_queue+0x94/0xa8 [ 858.091885][ T26] blk_mq_freeze_queue+0x20/0x30 [ 858.093034][ T26] nbd_add_socket+0x78/0x26c [ 858.094094][ T26] __nbd_ioctl+0x80/0x320 [ 858.095098][ T26] nbd_ioctl+0xec/0x13c [ 858.096078][ T26] blkdev_ioctl+0x250/0x764 [ 858.097146][ T26] __arm64_sys_ioctl+0xd0/0x140 [ 858.098353][ T26] el0_svc_common+0x138/0x220 [ 858.099417][ T26] do_el0_svc+0x48/0x154 [ 858.100344][ T26] el0_svc+0x58/0x150 [ 858.101249][ T26] el0t_64_sync_handler+0x84/0xf0 [ 858.102393][ T26] el0t_64_sync+0x18c/0x190 [ 858.103430][ T26] INFO: task udevd:3084 blocked for more than 143 seconds. [ 858.105006][ T26] Not tainted 6.0.0-rc2-syzkaller-16455-ga41a877bc12d #0 [ 858.106758][ T26] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 858.108833][ T26] task:udevd state:D stack: 0 pid: 3084 ppid: 2560 flags:0x00000000 [ 858.110887][ T26] Call trace: [ 858.111620][ T26] __switch_to+0x180/0x28c [ 858.112619][ T26] __schedule+0x414/0x570 [ 858.113622][ T26] schedule+0x64/0xa4 [ 858.114525][ T26] io_schedule+0x38/0x104 [ 858.115484][ T26] folio_wait_bit_common+0x458/0x9f8 [ 858.116652][ T26] do_read_cache_folio+0x78/0x550 [ 858.117929][ T26] read_cache_folio+0x40/0x54 [ 858.118989][ T26] read_part_sector+0x60/0x1d8 [ 858.120096][ T26] adfspart_check_ICS+0x4c/0x38c [ 858.121223][ T26] bdev_disk_changed+0x340/0x63c [ 858.122431][ T26] blkdev_get_whole+0x1b0/0x1f8 [ 858.123553][ T26] blkdev_get_by_dev+0x178/0x2fc [ 858.124698][ T26] blkdev_open+0x84/0xd8 [ 858.125643][ T26] do_dentry_open+0x318/0x688 [ 858.126714][ T26] vfs_open+0x38/0x48 [ 858.127670][ T26] path_openat+0xe34/0x11c4 [ 858.128498][ T26] do_filp_open+0xdc/0x1b8 [ 858.129422][ T26] do_sys_openat2+0xb8/0x22c [ 858.130450][ T26] __arm64_sys_openat+0xb0/0xe0 [ 858.131515][ T26] el0_svc_common+0x138/0x220 [ 858.132624][ T26] do_el0_svc+0x48/0x154 [ 858.133590][ T26] el0_svc+0x58/0x150 [ 858.134477][ T26] el0t_64_sync_handler+0x84/0xf0 [ 858.135606][ T26] el0t_64_sync+0x18c/0x190 [ 858.136618][ T26] [ 858.136618][ T26] Showing all locks held in the system: [ 858.138433][ T26] 1 lock held by rcu_tasks_kthre/10: [ 858.139602][ T26] #0: ffff80000d4a3568 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x3c/0x450 [ 858.142092][ T26] 1 lock held by rcu_tasks_trace/11: [ 858.143308][ T26] #0: ffff80000d4a3bb8 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x3c/0x450 [ 858.145919][ T26] 1 lock held by khungtaskd/26: [ 858.147026][ T26] #0: ffff80000d4a3440 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x4/0x48 [ 858.149268][ T26] 2 locks held by getty/2712: [ 858.150342][ T26] #0: ffff0000c730a898 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x28/0x58 [ 858.152572][ T26] #1: ffff80000f67e2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x19c/0x88c [ 858.154892][ T26] 1 lock held by syz-executor245/3083: [ 858.156214][ T26] #0: ffff0000c5ccd998 (&nbd->config_lock){+.+.}-{3:3}, at: nbd_ioctl+0x70/0x13c [ 858.158440][ T26] 1 lock held by udevd/3084: [ 858.159494][ T26] #0: ffff0000c5daacc8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0xfc/0x2fc [ 858.162048][ T26] [ 858.162567][ T26] ============================================= [ 858.162567][ T26] [ 858.164558][ T26] Kernel panic - not syncing: hung_task: blocked tasks [ 858.166121][ T26] CPU: 0 PID: 26 Comm: khungtaskd Not tainted 6.0.0-rc2-syzkaller-16455-ga41a877bc12d #0 [ 858.168341][ T26] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 858.170761][ T26] Call trace: [ 858.171477][ T26] dump_backtrace+0x1b0/0x1dc [ 858.172622][ T26] show_stack+0x2c/0x64 [ 858.173640][ T26] dump_stack_lvl+0x104/0x16c [ 858.174753][ T26] dump_stack+0x1c/0x58 [ 858.175746][ T26] panic+0x218/0x514 [ 858.176711][ T26] hung_task_panic+0x0/0x2c [ 858.177794][ T26] kthread+0x12c/0x158 [ 858.178817][ T26] ret_from_fork+0x10/0x20 [ 858.179836][ T26] SMP: stopping secondary CPUs [ 858.180888][ T26] Kernel Offset: disabled [ 858.181923][ T26] CPU features: 0x0000,0081c021,09805c80 [ 858.183260][ T26] Memory Limit: none [ 858.317570][ T26] Rebooting in 86400 seconds..