Warning: Permanently added '10.128.0.56' (ECDSA) to the list of known hosts. executing program [ 303.196629][ T5077] nbd0: detected capacity change from 0 to 4094 [ 303.358352][ T4379] block nbd0: Receive control failed (result -104) [ 303.360240][ T5077] block nbd0: shutting down sockets [ 303.373994][ C1] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 303.383138][ C1] Buffer I/O error on dev nbd0, logical block 0, async page read [ 303.391114][ T5078] ldm_validate_partition_table(): Disk read failed. [ 303.397899][ T5078] Dev nbd0: unable to read RDB block 0 executing program [ 303.403367][ T5078] nbd0: unable to read partition table [ 303.409096][ T5078] nbd0: partition table beyond EOD, truncated executing program [ 303.454016][ T5080] block nbd0: Device being setup by another task [ 303.460612][ T5080] nbd0: detected capacity change from 0 to 4094 [ 303.534469][ T5082] nbd0: detected capacity change from 0 to 4094 [ 303.696140][ T4379] block nbd0: Receive control failed (result -104) [ 303.696711][ T5082] block nbd0: shutting down sockets [ 303.708440][ C1] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 303.717506][ C1] Buffer I/O error on dev nbd0, logical block 0, async page read [ 303.725357][ T5078] ldm_validate_partition_table(): Disk read failed. [ 303.732039][ T5078] Dev nbd0: unable to read RDB block 0 [ 303.737724][ T5078] nbd0: unable to read partition table executing program [ 303.743415][ T5078] nbd0: partition table beyond EOD, truncated [ 303.805663][ T5085] nbd0: detected capacity change from 0 to 4094 [ 303.966004][ T4379] block nbd0: Receive control failed (result -104) [ 303.973296][ T5085] block nbd0: shutting down sockets [ 303.983912][ C1] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 303.992961][ C1] Buffer I/O error on dev nbd0, logical block 0, async page read [ 304.000959][ T5078] ldm_validate_partition_table(): Disk read failed. [ 304.007714][ T5078] Dev nbd0: unable to read RDB block 0 executing program [ 304.013177][ T5078] nbd0: unable to read partition table [ 304.019147][ T5078] nbd0: partition table beyond EOD, truncated [ 304.064683][ T5087] nbd0: detected capacity change from 0 to 4094 [ 304.226669][ T4379] block nbd0: Receive control failed (result -104) [ 304.227098][ T5087] block nbd0: shutting down sockets [ 304.239108][ C0] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 304.248219][ C0] Buffer I/O error on dev nbd0, logical block 0, async page read [ 304.260871][ T5078] ldm_validate_partition_table(): Disk read failed. [ 304.267583][ T5078] Dev nbd0: unable to read RDB block 0 executing program [ 304.273224][ T5078] nbd0: unable to read partition table [ 304.279009][ T5078] nbd0: partition table beyond EOD, truncated [ 304.324770][ T5089] nbd0: detected capacity change from 0 to 4094 [ 304.487161][ T4379] block nbd0: Receive control failed (result -104) [ 304.487677][ T5089] block nbd0: shutting down sockets [ 304.500332][ C0] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 304.509450][ C0] Buffer I/O error on dev nbd0, logical block 0, async page read [ 304.517328][ T5078] ldm_validate_partition_table(): Disk read failed. [ 304.524048][ T5078] Dev nbd0: unable to read RDB block 0 [ 304.529520][ T5078] nbd0: unable to read partition table executing program [ 304.535485][ T5078] nbd0: partition table beyond EOD, truncated [ 304.594641][ T5091] nbd0: detected capacity change from 0 to 4094 [ 304.757521][ T4379] block nbd0: Receive control failed (result -104) [ 304.757937][ T5091] block nbd0: shutting down sockets [ 304.770669][ C0] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 304.779778][ C0] Buffer I/O error on dev nbd0, logical block 0, async page read [ 304.787897][ T5078] ldm_validate_partition_table(): Disk read failed. [ 304.794747][ T5078] Dev nbd0: unable to read RDB block 0 [ 304.800344][ T5078] nbd0: unable to read partition table executing program [ 304.806175][ T5078] nbd0: partition table beyond EOD, truncated [ 304.863917][ T5093] block nbd0: Device being setup by another task [ 304.871178][ T5094] nbd0: detected capacity change from 0 to 4094 [ 304.878401][ T990] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 304.887768][ T990] Buffer I/O error on dev nbd0, logical block 0, async page read [ 304.896279][ T52] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 304.905363][ T52] Buffer I/O error on dev nbd0, logical block 0, async page read [ 304.914208][ T52] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 304.923335][ T52] Buffer I/O error on dev nbd0, logical block 0, async page read [ 304.931335][ T52] I/O error, dev nbd0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 [ 304.940415][ T52] Buffer I/O error on dev nbd0, logical block 0, async page read [ 304.948694][ T5078] ldm_validate_partition_table(): Disk read failed. [ 304.955778][ T5078] Dev nbd0: unable to read RDB block 0 executing program [ 304.962224][ T5078] nbd0: unable to read partition table [ 304.971442][ T5078] ldm_validate_partition_table(): Disk read failed. [ 304.978643][ T5078] Dev nbd0: unable to read RDB block 0 [ 304.984682][ T5078] nbd0: unable to read partition table [ 304.992678][ T5096] ldm_validate_partition_table(): Disk read failed. [ 304.999856][ T5096] Dev nbd0: unable to read RDB block 0 [ 305.006104][ T5096] nbd0: unable to read partition table executing program [ 305.053862][ T5096] block nbd0: Device being setup by another task [ 305.062579][ T5078] ldm_validate_partition_table(): Disk read failed. [ 305.069881][ T5078] Dev nbd0: unable to read RDB block 0 [ 305.075829][ T5078] nbd0: unable to read partition table [ 305.084201][ T5078] ldm_validate_partition_table(): Disk read failed. [ 305.091121][ T5078] Dev nbd0: unable to read RDB block 0 [ 305.097304][ T5078] nbd0: unable to read partition table [ 305.105127][ T5098] ldm_validate_partition_table(): Disk read failed. [ 305.112085][ T5098] Dev nbd0: unable to read RDB block 0 [ 305.118240][ T5098] nbd0: unable to read partition table executing program [ 305.163890][ T5098] block nbd0: Device being setup by another task [ 305.172786][ T5078] ldm_validate_partition_table(): Disk read failed. [ 305.180160][ T5078] Dev nbd0: unable to read RDB block 0 [ 305.186199][ T5078] nbd0: unable to read partition table [ 305.194636][ T5078] ldm_validate_partition_table(): Disk read failed. [ 305.201652][ T5078] Dev nbd0: unable to read RDB block 0 [ 305.207673][ T5078] nbd0: unable to read partition table [ 305.215210][ T5100] ldm_validate_partition_table(): Disk read failed. [ 305.222154][ T5100] Dev nbd0: unable to read RDB block 0 [ 305.228420][ T5100] nbd0: unable to read partition table executing program [ 305.273857][ T5100] block nbd0: Device being setup by another task [ 305.282206][ T5078] ldm_validate_partition_table(): Disk read failed. [ 305.289241][ T5078] Dev nbd0: unable to read RDB block 0 [ 305.295286][ T5078] nbd0: unable to read partition table [ 305.307309][ T5102] ldm_validate_partition_table(): Disk read failed. [ 305.314365][ T5102] Dev nbd0: unable to read RDB block 0 [ 305.320242][ T5102] nbd0: unable to read partition table executing program [ 305.403829][ T5102] block nbd0: Device being setup by another task [ 305.411217][ T5078] ldm_validate_partition_table(): Disk read failed. [ 305.418286][ T5078] Dev nbd0: unable to read RDB block 0 [ 305.424257][ T5078] nbd0: unable to read partition table [ 305.524608][ T5105] nbd0: detected capacity change from 0 to 4094 [ 305.685569][ T4379] block nbd0: Receive control failed (result -104) [ 335.574422][ T990] block nbd0: Possible stuck request ffff88801efb8000: control (read@0,4096B). Runtime 30 seconds [ 365.611785][ T4422] udevd[4422]: worker [5078] /devices/virtual/block/nbd0 is taking a long time [ 365.664415][ T990] block nbd0: Possible stuck request ffff88801efb8000: control (read@0,4096B). Runtime 60 seconds [ 395.734006][ T990] block nbd0: Possible stuck request ffff88801efb8000: control (read@0,4096B). Runtime 90 seconds [ 425.814003][ T990] block nbd0: Possible stuck request ffff88801efb8000: control (read@0,4096B). Runtime 120 seconds [ 455.893980][ T990] block nbd0: Possible stuck request ffff88801efb8000: control (read@0,4096B). Runtime 150 seconds executing program [ 485.774432][ T4422] udevd[4422]: worker [5078] /devices/virtual/block/nbd0 timeout; kill it [ 485.783692][ T5078] ldm_validate_partition_table(): Disk read failed. [ 485.784477][ T4422] udevd[4422]: seq 7530 '/devices/virtual/block/nbd0' killed [ 485.790382][ T5078] Dev nbd0: unable to read RDB block 0 [ 485.803410][ T5078] nbd0: unable to read partition table [ 485.809266][ T5078] nbd0: partition table beyond EOD, truncated [ 485.822854][ T4422] udevd[4422]: worker [5078] terminated by signal 9 (Killed) [ 485.830408][ T4422] udevd[4422]: worker [5078] failed while handling '/devices/virtual/block/nbd0' [ 485.983817][ T990] block nbd0: Possible stuck request ffff88801efb8000: control (read@0,4096B). Runtime 180 seconds [ 516.053859][ T990] block nbd0: Possible stuck request ffff88801efb8000: control (read@0,4096B). Runtime 210 seconds [ 546.133867][ T990] block nbd0: Possible stuck request ffff88801efb8000: control (read@0,4096B). Runtime 240 seconds [ 576.213859][ T990] block nbd0: Possible stuck request ffff88801efb8000: control (read@0,4096B). Runtime 270 seconds [ 606.293829][ T990] block nbd0: Possible stuck request ffff88801efb8000: control (read@0,4096B). Runtime 300 seconds [ 636.373819][ T990] block nbd0: Possible stuck request ffff88801efb8000: control (read@0,4096B). Runtime 330 seconds [ 666.453842][ T990] block nbd0: Possible stuck request ffff88801efb8000: control (read@0,4096B). Runtime 360 seconds [ 696.533802][ T990] block nbd0: Possible stuck request ffff88801efb8000: control (read@0,4096B). Runtime 390 seconds [ 716.373725][ T28] INFO: task syz-executor331:5120 blocked for more than 143 seconds. [ 716.382949][ T28] Not tainted 6.2.0-rc2-syzkaller-00282-g0a71553536d2 #0 [ 716.390660][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 716.399431][ T28] task:syz-executor331 state:D stack:27336 pid:5120 ppid:5074 flags:0x00004004 [ 716.408700][ T28] Call Trace: [ 716.411982][ T28] [ 716.414970][ T28] __schedule+0x9d1/0xe40 [ 716.419462][ T28] ? release_firmware_map_entry+0x180/0x180 [ 716.425401][ T28] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 716.431306][ T28] ? _raw_spin_unlock+0x40/0x40 [ 716.436199][ T28] ? sbitmap_any_bit_set+0x155/0x190 [ 716.441569][ T28] ? prepare_to_wait_event+0x444/0x540 [ 716.447114][ T28] schedule+0xcb/0x190 [ 716.451197][ T28] blk_mq_freeze_queue_wait+0x105/0x190 [ 716.457096][ T28] ? blk_mq_run_hw_queues+0x370/0x370 [ 716.462479][ T28] ? wake_bit_function+0x240/0x240 [ 716.467645][ T28] ? percpu_ref_kill_and_confirm+0x9c/0x130 [ 716.473652][ T28] ? unix_listen+0x2b0/0x2b0 [ 716.478292][ T28] nbd_add_socket+0x17b/0x8e0 [ 716.483011][ T28] ? refcount_inc+0x80/0x80 [ 716.487581][ T28] ? bpf_lsm_capable+0x5/0x10 [ 716.492327][ T28] nbd_ioctl+0x1d5/0x5b0 [ 716.496615][ T28] ? nbd_release+0x130/0x130 [ 716.501217][ T28] blkdev_ioctl+0x3c9/0x7c0 [ 716.505862][ T28] ? blkdev_compat_ptr_ioctl+0xd0/0xd0 [ 716.511368][ T28] ? bpf_lsm_file_ioctl+0x5/0x10 [ 716.516393][ T28] ? security_file_ioctl+0x9d/0xb0 [ 716.521629][ T28] ? blkdev_compat_ptr_ioctl+0xd0/0xd0 [ 716.527198][ T28] __se_sys_ioctl+0xfb/0x170 [ 716.531878][ T28] do_syscall_64+0x2b/0x70 [ 716.536370][ T28] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 716.542360][ T28] RIP: 0033:0x7fc84227c249 [ 716.546832][ T28] RSP: 002b:00007fc842229308 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 716.555286][ T28] RAX: ffffffffffffffda RBX: 00007fc842300408 RCX: 00007fc84227c249 [ 716.563338][ T28] RDX: 0000000000000004 RSI: 000000000000ab00 RDI: 0000000000000003 [ 716.571349][ T28] RBP: 00007fc842300400 R08: 0000000000000000 R09: 0000000000000000 [ 716.579355][ T28] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc84230040c [ 716.587364][ T28] R13: 00007fc8422cd1a4 R14: 64626e2f7665642f R15: 0000000000022000 [ 716.595382][ T28] [ 716.598415][ T28] INFO: task syz-executor331:5121 blocked for more than 143 seconds. [ 716.606535][ T28] Not tainted 6.2.0-rc2-syzkaller-00282-g0a71553536d2 #0 [ 716.614238][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 716.622902][ T28] task:syz-executor331 state:D stack:28728 pid:5121 ppid:5074 flags:0x00004004 [ 716.632246][ T28] Call Trace: [ 716.635578][ T28] [ 716.638514][ T28] __schedule+0x9d1/0xe40 [ 716.642849][ T28] ? release_firmware_map_entry+0x180/0x180 [ 716.648782][ T28] ? __lock_acquire+0x1f60/0x1f60 [ 716.653910][ T28] ? __mutex_trylock_common+0x8e/0x2f0 [ 716.659364][ T28] ? do_raw_spin_unlock+0x134/0x8a0 [ 716.664616][ T28] schedule+0xcb/0x190 [ 716.668703][ T28] schedule_preempt_disabled+0xf/0x20 [ 716.674216][ T28] __mutex_lock_common+0xecf/0x26c0 [ 716.679438][ T28] ? nbd_ioctl+0xd7/0x5b0 [ 716.683822][ T28] ? mutex_lock_io_nested+0x60/0x60 [ 716.689027][ T28] ? safesetid_security_capable+0xab/0x1b0 [ 716.694977][ T28] ? bpf_lsm_capable+0x5/0x10 [ 716.699664][ T28] mutex_lock_nested+0x17/0x20 [ 716.704476][ T28] nbd_ioctl+0xd7/0x5b0 [ 716.708644][ T28] ? nbd_release+0x130/0x130 [ 716.713229][ T28] blkdev_ioctl+0x3c9/0x7c0 [ 716.717794][ T28] ? blkdev_compat_ptr_ioctl+0xd0/0xd0 [ 716.723273][ T28] ? bpf_lsm_file_ioctl+0x5/0x10 [ 716.728298][ T28] ? security_file_ioctl+0x9d/0xb0 [ 716.733425][ T28] ? blkdev_compat_ptr_ioctl+0xd0/0xd0 [ 716.738928][ T28] __se_sys_ioctl+0xfb/0x170 [ 716.743571][ T28] do_syscall_64+0x2b/0x70 [ 716.748005][ T28] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 716.754023][ T28] RIP: 0033:0x7fc84227c249 [ 716.758474][ T28] RSP: 002b:00007fc842208308 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 716.767114][ T28] RAX: ffffffffffffffda RBX: 00007fc842300418 RCX: 00007fc84227c249 [ 716.775187][ T28] RDX: 00000000000007ff RSI: 000000000000ab07 RDI: 0000000000000003 [ 716.783169][ T28] RBP: 00007fc842300410 R08: 00007fc842208700 R09: 0000000000000000 [ 716.791218][ T28] R10: 00007fc842208700 R11: 0000000000000246 R12: 00007fc84230041c [ 716.799330][ T28] R13: 00007fc8422cd1a4 R14: 64626e2f7665642f R15: 0000000000022000 [ 716.807368][ T28] [ 716.810389][ T28] INFO: task syz-executor331:5122 blocked for more than 143 seconds. [ 716.818492][ T28] Not tainted 6.2.0-rc2-syzkaller-00282-g0a71553536d2 #0 [ 716.826105][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 716.834838][ T28] task:syz-executor331 state:D stack:28728 pid:5122 ppid:5074 flags:0x00004004 [ 716.844093][ T28] Call Trace: [ 716.847541][ T28] [ 716.850464][ T28] __schedule+0x9d1/0xe40 [ 716.854847][ T28] ? release_firmware_map_entry+0x180/0x180 [ 716.861449][ T28] ? __lock_acquire+0x1f60/0x1f60 [ 716.866534][ T28] ? __mutex_trylock_common+0x8e/0x2f0 [ 716.872004][ T28] ? do_raw_spin_unlock+0x134/0x8a0 [ 716.877285][ T28] schedule+0xcb/0x190 [ 716.881377][ T28] schedule_preempt_disabled+0xf/0x20 [ 716.886829][ T28] __mutex_lock_common+0xecf/0x26c0 [ 716.892051][ T28] ? nbd_ioctl+0xd7/0x5b0 [ 716.896642][ T28] ? mutex_lock_io_nested+0x60/0x60 [ 716.901858][ T28] ? safesetid_security_capable+0xab/0x1b0 [ 716.907719][ T28] ? bpf_lsm_capable+0x5/0x10 [ 716.912430][ T28] mutex_lock_nested+0x17/0x20 [ 716.917279][ T28] nbd_ioctl+0xd7/0x5b0 [ 716.921619][ T28] ? nbd_release+0x130/0x130 [ 716.926304][ T28] blkdev_ioctl+0x3c9/0x7c0 [ 716.930859][ T28] ? blkdev_compat_ptr_ioctl+0xd0/0xd0 [ 716.936575][ T28] ? bpf_lsm_file_ioctl+0x5/0x10 [ 716.941638][ T28] ? security_file_ioctl+0x9d/0xb0 [ 716.946865][ T28] ? blkdev_compat_ptr_ioctl+0xd0/0xd0 [ 716.952355][ T28] __se_sys_ioctl+0xfb/0x170 [ 716.957036][ T28] do_syscall_64+0x2b/0x70 [ 716.961465][ T28] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 716.967424][ T28] RIP: 0033:0x7fc84227c249 [ 716.971847][ T28] RSP: 002b:00007fc8421e7308 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 716.980313][ T28] RAX: ffffffffffffffda RBX: 00007fc842300428 RCX: 00007fc84227c249 [ 716.988325][ T28] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000003 [ 716.996403][ T28] RBP: 00007fc842300420 R08: 00007fc8421e7700 R09: 0000000000000000 [ 717.004449][ T28] R10: 00007fc8421e7700 R11: 0000000000000246 R12: 00007fc84230042c [ 717.012536][ T28] R13: 00007fc8422cd1a4 R14: 64626e2f7665642f R15: 0000000000022000 [ 717.020728][ T28] [ 717.023923][ T28] [ 717.023923][ T28] Showing all locks held in the system: [ 717.031641][ T28] 1 lock held by rcu_tasks_kthre/12: [ 717.036994][ T28] #0: ffffffff8d5239d0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 [ 717.047617][ T28] 1 lock held by rcu_tasks_trace/13: [ 717.052893][ T28] #0: ffffffff8d5241d0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 [ 717.063931][ T28] 1 lock held by khungtaskd/28: [ 717.068794][ T28] #0: ffffffff8d523800 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 [ 717.078207][ T28] 2 locks held by getty/4734: [ 717.082888][ T28] #0: ffff888028781098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 [ 717.092736][ T28] #1: ffffc900015b02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6e8/0x1e50 [ 717.103026][ T28] 1 lock held by syz-executor331/5120: [ 717.108594][ T28] #0: ffff88801ef059a0 (&nbd->config_lock){+.+.}-{3:3}, at: nbd_ioctl+0xd7/0x5b0 [ 717.117904][ T28] 1 lock held by syz-executor331/5121: [ 717.123352][ T28] #0: ffff88801ef059a0 (&nbd->config_lock){+.+.}-{3:3}, at: nbd_ioctl+0xd7/0x5b0 [ 717.132703][ T28] 1 lock held by syz-executor331/5122: [ 717.138212][ T28] #0: ffff88801ef059a0 (&nbd->config_lock){+.+.}-{3:3}, at: nbd_ioctl+0xd7/0x5b0 [ 717.147525][ T28] [ 717.149889][ T28] ============================================= [ 717.149889][ T28] [ 717.158429][ T28] NMI backtrace for cpu 1 [ 717.162778][ T28] CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.2.0-rc2-syzkaller-00282-g0a71553536d2 #0 [ 717.172605][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 717.182665][ T28] Call Trace: [ 717.185948][ T28] [ 717.188877][ T28] dump_stack_lvl+0x1e3/0x2d0 [ 717.193563][ T28] ? nf_tcp_handle_invalid+0x630/0x630 [ 717.199020][ T28] ? panic+0x770/0x770 [ 717.203179][ T28] ? nmi_cpu_backtrace+0x255/0x560 [ 717.208315][ T28] nmi_cpu_backtrace+0x4e3/0x560 [ 717.213250][ T28] ? vprintk_emit+0x109/0x1e0 [ 717.218038][ T28] ? nmi_trigger_cpumask_backtrace+0x3e0/0x3e0 [ 717.224187][ T28] ? _printk+0xcf/0x110 [ 717.228342][ T28] ? panic+0x770/0x770 [ 717.232416][ T28] ? __wake_up_klogd+0xcd/0x100 [ 717.237268][ T28] ? panic+0x770/0x770 [ 717.241336][ T28] ? nmi_trigger_cpumask_backtrace+0xaa/0x3e0 [ 717.247404][ T28] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 717.253520][ T28] nmi_trigger_cpumask_backtrace+0x19b/0x3e0 [ 717.259503][ T28] watchdog+0xcd5/0xd20 [ 717.263713][ T28] kthread+0x266/0x300 [ 717.267826][ T28] ? hungtask_pm_notify+0x50/0x50 [ 717.272850][ T28] ? kthread_blkcg+0xd0/0xd0 [ 717.277453][ T28] ret_from_fork+0x1f/0x30 [ 717.281897][ T28] [ 717.285021][ T28] Sending NMI from CPU 1 to CPUs 0: [ 717.290265][ C0] NMI backtrace for cpu 0 skipped: idling at acpi_idle_enter+0x43d/0x800 [ 717.291242][ T28] Kernel panic - not syncing: hung_task: blocked tasks [ 717.306592][ T28] CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.2.0-rc2-syzkaller-00282-g0a71553536d2 #0 [ 717.316486][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 717.326539][ T28] Call Trace: [ 717.329809][ T28] [ 717.332729][ T28] dump_stack_lvl+0x1e3/0x2d0 [ 717.337429][ T28] ? nf_tcp_handle_invalid+0x630/0x630 [ 717.342875][ T28] ? panic+0x770/0x770 [ 717.346938][ T28] ? vscnprintf+0x59/0x80 [ 717.351260][ T28] panic+0x316/0x770 [ 717.355150][ T28] ? nmi_trigger_cpumask_backtrace+0x2b0/0x3e0 [ 717.361312][ T28] ? memcpy_page_flushcache+0x100/0x100 [ 717.366855][ T28] ? nmi_trigger_cpumask_backtrace+0x2b9/0x3e0 [ 717.372996][ T28] watchdog+0xd15/0xd20 [ 717.377147][ T28] kthread+0x266/0x300 [ 717.381203][ T28] ? hungtask_pm_notify+0x50/0x50 [ 717.386222][ T28] ? kthread_blkcg+0xd0/0xd0 [ 717.390804][ T28] ret_from_fork+0x1f/0x30 [ 717.395230][ T28] [ 717.398304][ T28] Kernel Offset: disabled [ 717.402709][ T28] Rebooting in 86400 seconds..