1 TITLE: kernel panic: hung_task: blocked tasks 2 CORRUPTED: Y 3 4 [ 246.756084] Kernel panic - not syncing: hung_task: blocked tasks 5 [ 246.762271] CPU: 1 PID: 870 Comm: khungtaskd Not tainted 4.16.0-rc7+ #5 6 [ 246.769011] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 7 [ 246.778353] Call Trace: 8 [ 246.780919] dump_stack+0x194/0x24d 9 [ 246.784522] ? arch_local_irq_restore+0x53/0x53 10 [ 246.789168] ? vsnprintf+0x1ed/0x1900 11 [ 246.792946] panic+0x1e4/0x41c 12 [ 246.796112] ? refcount_error_report+0x214/0x214 13 [ 246.800854] ? nmi_trigger_cpumask_backtrace+0xf0/0x180 14 [ 246.806194] watchdog+0x91d/0xd60 15 [ 246.809631] ? reset_hung_task_detector+0xa0/0xa0 16 [ 246.814452] ? complete+0x62/0x80 17 [ 246.817889] ? __schedule+0x1ec0/0x1ec0 18 [ 246.821836] ? do_wait_intr_irq+0x3e0/0x3e0 19 [ 246.826131] ? __lockdep_init_map+0xe4/0x650 20 [ 246.830514] ? do_raw_spin_trylock+0x190/0x190 21 [ 246.835071] ? lockdep_init_map+0x9/0x10 22 [ 246.839104] ? _raw_spin_unlock_irqrestore+0x31/0xc0 23 [ 246.844181] ? trace_hardirqs_on_caller+0x421/0x5c0 24 [ 246.849168] ? trace_hardirqs_on+0xd/0x10 25 [ 246.853289] ? __kthread_parkme+0x176/0x240 26 [ 246.857584] kthread+0x33c/0x400 27 [ 246.860924] ? reset_hung_task_detector+0xa0/0xa0 28 [ 246.865736] ? kthread_stop+0x7a0/0x7a0 29 [ 246.869694] ret_from_fork+0x3a/0x50 30 [ 246.873891] Dumping ftrace buffer: 31 [ 246.877662] (ftrace buffer empty) 32 [ 246.881355] Kernel Offset: disabled 33 [ 246.884957] Rebooting in 86400 seconds.. 34
