Warning: Permanently added '10.128.1.96' (ECDSA) to the list of known hosts. executing program [ 409.549027][ T3997] nbd0: detected capacity change from 0 to 65538 [ 409.662871][ T144] block nbd0: Receive control failed (result -104) [ 440.167431][ T226] block nbd0: Possible stuck request 00000000ece8019b: control (read@0,4096B). Runtime 30 seconds [ 469.623206][ T3585] udevd[3585]: worker [3996] /devices/virtual/block/nbd0 is taking a long time [ 470.247441][ T226] block nbd0: Possible stuck request 00000000ece8019b: control (read@0,4096B). Runtime 60 seconds [ 500.327501][ T226] block nbd0: Possible stuck request 00000000ece8019b: control (read@0,4096B). Runtime 90 seconds [ 530.407520][ T226] block nbd0: Possible stuck request 00000000ece8019b: control (read@0,4096B). Runtime 120 seconds [ 560.487560][ T226] block nbd0: Possible stuck request 00000000ece8019b: control (read@0,4096B). Runtime 150 seconds [ 571.367507][ T27] INFO: task syz-executor365:3994 blocked for more than 143 seconds. [ 571.369286][ T27] Not tainted 5.15.118-syzkaller #0 [ 571.370512][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 571.372289][ T27] task:syz-executor365 state:D stack: 0 pid: 3994 ppid: 3992 flags:0x0000000d [ 571.374224][ T27] Call trace: [ 571.374928][ T27] __switch_to+0x308/0x5e8 [ 571.375878][ T27] __schedule+0xf10/0x1e38 [ 571.376888][ T27] schedule+0x11c/0x1c8 [ 571.378025][ T27] schedule_preempt_disabled+0x18/0x2c [ 571.379191][ T27] __mutex_lock_common+0xba0/0x2154 [ 571.380410][ T27] mutex_lock_nested+0xa4/0xf8 [ 571.381457][ T27] blkdev_put+0xe0/0x6b0 [ 571.382369][ T27] blkdev_close+0x74/0xb0 [ 571.383278][ T27] __fput+0x30c/0x7f0 [ 571.384147][ T27] ____fput+0x20/0x30 [ 571.385013][ T27] task_work_run+0x130/0x1e4 [ 571.385964][ T27] get_signal+0x1450/0x1550 [ 571.386957][ T27] do_notify_resume+0x3d0/0x32b8 [ 571.388134][ T27] el0_svc+0xfc/0x1f0 [ 571.389012][ T27] el0t_64_sync_handler+0x84/0xe4 [ 571.390035][ T27] el0t_64_sync+0x1a0/0x1a4 [ 571.391005][ T27] INFO: task udevd:3996 blocked for more than 143 seconds. [ 571.392514][ T27] Not tainted 5.15.118-syzkaller #0 [ 571.393766][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 571.395616][ T27] task:udevd state:D stack: 0 pid: 3996 ppid: 3585 flags:0x0000000c [ 571.397622][ T27] Call trace: [ 571.398339][ T27] __switch_to+0x308/0x5e8 [ 571.399276][ T27] __schedule+0xf10/0x1e38 [ 571.400226][ T27] schedule+0x11c/0x1c8 [ 571.401106][ T27] io_schedule+0x8c/0x194 [ 571.402099][ T27] wait_on_page_bit_common+0x6fc/0xc14 [ 571.403296][ T27] do_read_cache_page+0x760/0x950 [ 571.404342][ T27] read_cache_page+0x68/0x84 [ 571.405351][ T27] read_part_sector+0xe8/0x4d8 [ 571.406364][ T27] adfspart_check_ICS+0xd4/0x5d0 [ 571.407490][ T27] bdev_disk_changed+0x774/0x1370 [ 571.408616][ T27] blkdev_get_whole+0x2a0/0x344 [ 571.409629][ T27] blkdev_get_by_dev+0x238/0x89c [ 571.410654][ T27] blkdev_open+0x10c/0x274 [ 571.411655][ T27] do_dentry_open+0x780/0xed8 [ 571.412678][ T27] vfs_open+0x7c/0x90 [ 571.413519][ T27] path_openat+0x1f28/0x26f0 [ 571.414509][ T27] do_filp_open+0x1a8/0x3b4 [ 571.415490][ T27] do_sys_openat2+0x128/0x3d8 [ 571.416425][ T27] __arm64_sys_openat+0x1f0/0x240 [ 571.417548][ T27] invoke_syscall+0x98/0x2b8 [ 571.418484][ T27] el0_svc_common+0x138/0x258 [ 571.419586][ T27] do_el0_svc+0x58/0x14c [ 571.420465][ T27] el0_svc+0x7c/0x1f0 [ 571.421316][ T27] el0t_64_sync_handler+0x84/0xe4 [ 571.422418][ T27] el0t_64_sync+0x1a0/0x1a4 [ 571.423381][ T27] [ 571.423381][ T27] Showing all locks held in the system: [ 571.424997][ T27] 1 lock held by khungtaskd/27: [ 571.426020][ T27] #0: ffff800014ac19a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 [ 571.428186][ T27] 1 lock held by klogd/3574: [ 571.429279][ T27] #0: ffff0001b482bd18 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x328/0x1e38 [ 571.431302][ T27] 2 locks held by getty/3721: [ 571.432308][ T27] #0: ffff0000d299f098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 [ 571.434340][ T27] #1: ffff80001a29b2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1200 [ 571.436585][ T27] 1 lock held by syz-executor365/3994: [ 571.437811][ T27] #0: ffff0000cc191918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xe0/0x6b0 [ 571.439828][ T27] 1 lock held by udevd/3996: [ 571.440781][ T27] #0: ffff0000cc191918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x12c/0x89c [ 571.442991][ T27] [ 571.443472][ T27] ============================================= [ 571.443472][ T27] [ 571.445261][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 571.446675][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.118-syzkaller #0 [ 571.448468][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 [ 571.450656][ T27] Call trace: [ 571.451382][ T27] dump_backtrace+0x0/0x530 [ 571.452401][ T27] show_stack+0x2c/0x3c [ 571.453295][ T27] dump_stack_lvl+0x108/0x170 [ 571.454293][ T27] dump_stack+0x1c/0x58 [ 571.455147][ T27] panic+0x304/0x8b4 [ 571.455987][ T27] hung_task_panic+0x0/0x2c [ 571.456973][ T27] kthread+0x37c/0x45c [ 571.457854][ T27] ret_from_fork+0x10/0x20 [ 571.458847][ T27] SMP: stopping secondary CPUs [ 571.459888][ T27] Kernel Offset: disabled [ 571.460809][ T27] CPU features: 0x000081c1,21302e40 [ 571.461984][ T27] Memory Limit: none [ 571.780223][ T27] Rebooting in 86400 seconds..