Warning: Permanently added '10.128.0.204' (ED25519) to the list of known hosts. executing program [ 68.562016][ T6417] nbd0: detected capacity change from 0 to 8388607 [ 68.685183][ T5986] block nbd0: Receive control failed (result -104) [ 68.688084][ T6417] block nbd0: shutting down sockets [ 68.689774][ C0] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 [ 68.691747][ C0] Buffer I/O error on dev nbd0, logical block 0, async page read [ 68.693566][ T6414] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 [ 68.695616][ T6414] Buffer I/O error on dev nbd0, logical block 0, async page read [ 68.697501][ T6414] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 [ 68.699406][ T6414] Buffer I/O error on dev nbd0, logical block 0, async page read [ 68.701126][ T6414] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 [ 68.703143][ T6414] Buffer I/O error on dev nbd0, logical block 0, async page read [ 68.704833][ T6414] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 [ 68.706722][ T6414] Buffer I/O error on dev nbd0, logical block 0, async page read [ 68.708443][ T6414] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 [ 68.710290][ T6414] Buffer I/O error on dev nbd0, logical block 0, async page read [ 68.712079][ T6414] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 [ 68.713944][ T6414] Buffer I/O error on dev nbd0, logical block 0, async page read [ 68.715586][ T6414] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 [ 68.717412][ T6414] Buffer I/O error on dev nbd0, logical block 0, async page read [ 68.719087][ T6414] ldm_validate_partition_table(): Disk read failed. [ 68.720502][ T6414] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 [ 68.722527][ T6414] Buffer I/O error on dev nbd0, logical block 0, async page read [ 68.724200][ T6414] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0 [ 68.726064][ T6414] Buffer I/O error on dev nbd0, logical block 0, async page read [ 68.727671][ T6414] Dev nbd0: unable to read RDB block 0 [ 68.729054][ T6414] nbd0: unable to read partition table [ 68.732869][ T6414] ldm_validate_partition_table(): Disk read failed. [ 68.734489][ T6414] Dev nbd0: unable to read RDB block 0 executing program [ 68.735957][ T6414] nbd0: unable to read partition table [ 68.739325][ T6419] ldm_validate_partition_table(): Disk read failed. [ 68.740789][ T6419] Dev nbd0: unable to read RDB block 0 [ 68.742290][ T6419] nbd0: unable to read partition table [ 68.832281][ T6419] block nbd0: Device being setup by another task [ 68.834256][ T6414] ldm_validate_partition_table(): Disk read failed. [ 68.835795][ T6414] Dev nbd0: unable to read RDB block 0 [ 68.837245][ T6414] nbd0: unable to read partition table [ 68.839895][ T6414] ldm_validate_partition_table(): Disk read failed. [ 68.841542][ T6414] Dev nbd0: unable to read RDB block 0 [ 68.842964][ T6414] nbd0: unable to read partition table executing program [ 68.962103][ T6421] nbd0: detected capacity change from 0 to 8388607 [ 69.084537][ T5986] block nbd0: Receive control failed (result -104) [ 69.085091][ T6421] block nbd0: shutting down sockets [ 69.090924][ T6414] ldm_validate_partition_table(): Disk read failed. [ 69.092582][ T6414] Dev nbd0: unable to read RDB block 0 [ 69.094082][ T6414] nbd0: unable to read partition table [ 69.096613][ T6414] ldm_validate_partition_table(): Disk read failed. [ 69.098297][ T6414] Dev nbd0: unable to read RDB block 0 [ 69.099726][ T6414] nbd0: unable to read partition table executing program [ 69.104061][ T6423] ldm_validate_partition_table(): Disk read failed. [ 69.105754][ T6423] Dev nbd0: unable to read RDB block 0 [ 69.107015][ T6423] nbd0: unable to read partition table [ 69.202054][ T6424] block nbd0: Device being setup by another task [ 69.204075][ T6414] ldm_validate_partition_table(): Disk read failed. [ 69.205709][ T6414] Dev nbd0: unable to read RDB block 0 [ 69.207107][ T6414] nbd0: unable to read partition table [ 69.209510][ T6414] ldm_validate_partition_table(): Disk read failed. [ 69.211112][ T6414] Dev nbd0: unable to read RDB block 0 [ 69.212890][ T6414] nbd0: unable to read partition table executing program [ 69.216947][ T6426] ldm_validate_partition_table(): Disk read failed. [ 69.218524][ T6426] Dev nbd0: unable to read RDB block 0 [ 69.220071][ T6426] nbd0: unable to read partition table [ 69.292025][ T6426] block nbd0: Device being setup by another task [ 69.294182][ T6414] ldm_validate_partition_table(): Disk read failed. [ 69.295868][ T6414] Dev nbd0: unable to read RDB block 0 [ 69.297434][ T6414] nbd0: unable to read partition table [ 69.300591][ T6414] ldm_validate_partition_table(): Disk read failed. [ 69.302392][ T6414] Dev nbd0: unable to read RDB block 0 [ 69.303891][ T6414] nbd0: unable to read partition table executing program [ 69.422141][ T6428] nbd0: detected capacity change from 0 to 8388607 [ 69.544525][ T5986] block nbd0: Receive control failed (result -104) [ 69.546124][ T6428] block nbd0: shutting down sockets [ 69.547865][ T6414] ldm_validate_partition_table(): Disk read failed. [ 69.549493][ T6414] Dev nbd0: unable to read RDB block 0 [ 69.550878][ T6414] nbd0: unable to read partition table [ 69.553515][ T6414] ldm_validate_partition_table(): Disk read failed. [ 69.555272][ T6414] Dev nbd0: unable to read RDB block 0 [ 69.556679][ T6414] nbd0: unable to read partition table executing program [ 69.603780][ T3833] cfg80211: failed to load regulatory.db [ 69.821999][ T6431] nbd0: detected capacity change from 0 to 8388607 [ 69.827292][ T5986] block nbd0: Receive control failed (result -104) [ 100.322877][ T57] block nbd0: Possible stuck request 000000001bf041f2: control (read@0,4096B). Runtime 30 seconds [ 130.402980][ T57] block nbd0: Possible stuck request 000000001bf041f2: control (read@0,4096B). Runtime 60 seconds [ 131.642016][ T6033] udevd[6033]: worker [6414] /devices/virtual/block/nbd0 is taking a long time [ 160.482396][ T57] block nbd0: Possible stuck request 000000001bf041f2: control (read@0,4096B). Runtime 90 seconds [ 190.562678][ T41] block nbd0: Possible stuck request 000000001bf041f2: control (read@0,4096B). Runtime 120 seconds [ 220.642314][ T57] block nbd0: Possible stuck request 000000001bf041f2: control (read@0,4096B). Runtime 150 seconds [ 232.162152][ T31] INFO: task syz-executor210:6431 blocked for more than 143 seconds. [ 232.164010][ T31] Not tainted 6.13.0-rc3-syzkaller-g573067a5a685 #0 [ 232.165604][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 232.167326][ T31] task:syz-executor210 state:D stack:0 pid:6431 tgid:6429 ppid:6413 flags:0x0000000d [ 232.169510][ T31] Call trace: [ 232.170283][ T31] __switch_to+0x414/0x788 (T) [ 232.171291][ T31] __schedule+0x1744/0x27f0 [ 232.172413][ T31] schedule+0xbc/0x238 [ 232.173280][ T31] schedule_preempt_disabled+0x18/0x2c [ 232.174435][ T31] __mutex_lock_common+0xeec/0x28f4 [ 232.175446][ T31] mutex_lock_nested+0x2c/0x38 [ 232.176433][ T31] bdev_release+0x168/0x644 [ 232.177417][ T31] blkdev_release+0x20/0x34 [ 232.178465][ T31] __fput+0x1bc/0x75c [ 232.179296][ T31] ____fput+0x20/0x30 [ 232.180208][ T31] task_work_run+0x230/0x2e0 [ 232.181194][ T31] get_signal+0x1358/0x1534 [ 232.182236][ T31] do_signal+0x22c/0x39f4 [ 232.183259][ T31] do_notify_resume+0x74/0x1f4 [ 232.184263][ T31] el0_svc+0xac/0x168 [ 232.185066][ T31] el0t_64_sync_handler+0x84/0x108 [ 232.186167][ T31] el0t_64_sync+0x198/0x19c [ 232.187296][ T31] [ 232.187296][ T31] Showing all locks held in the system: [ 232.188909][ T31] 1 lock held by khungtaskd/31: [ 232.189959][ T31] #0: ffff80008fb82560 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0xc/0x44 [ 232.192023][ T31] 1 lock held by klogd/6022: [ 232.193217][ T31] #0: ffff0001b37f6698 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x2e0/0x27f0 [ 232.195215][ T31] 2 locks held by getty/6180: [ 232.196228][ T31] #0: ffff0000d29030a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c [ 232.198423][ T31] #1: ffff80009ba2b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x41c/0x1228 [ 232.200774][ T31] 1 lock held by udevd/6414: [ 232.201723][ T31] #0: ffff0000ca2464c8 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xd0/0xbd0 [ 232.203761][ T31] 1 lock held by syz-executor210/6431: [ 232.204942][ T31] #0: ffff0000ca2464c8 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_release+0x168/0x644 [ 232.206941][ T31] [ 232.207451][ T31] ============================================= [ 232.207451][ T31] [ 232.209297][ T31] Kernel panic - not syncing: hung_task: blocked tasks [ 232.210756][ T31] CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.13.0-rc3-syzkaller-g573067a5a685 #0 [ 232.212733][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 232.214849][ T31] Call trace: [ 232.215481][ T31] show_stack+0x2c/0x3c (C) [ 232.216382][ T31] dump_stack_lvl+0xe4/0x150 [ 232.217380][ T31] dump_stack+0x1c/0x28 [ 232.218377][ T31] panic+0x300/0x8a0 [ 232.219410][ T31] hung_task_panic+0x0/0x2c [ 232.220528][ T31] kthread+0x288/0x310 [ 232.221368][ T31] ret_from_fork+0x10/0x20 [ 232.222301][ T31] SMP: stopping secondary CPUs [ 232.223357][ T31] Kernel Offset: disabled [ 232.224279][ T31] CPU features: 0x100,00002070,00800250,82017203 [ 232.225537][ T31] Memory Limit: none [ 232.581655][ T31] Rebooting in 86400 seconds..