./file0€ [ 1233.8899489] panic: kernel diagnostic assertion "(c->c_flags & CALLOUT_PENDING) == 0" failed: file "/syzkaller/managers/netbsd/kernel/sys/kern/kern_timeout.c", line 317 callout 0xffff970012e3caa0: c_func (0xffffffff80fd732b) c_flags (0x102) destroyed from 0xffffffff80fd711b [ 1233.9165034] cpu1: Begin traceback... [ 1233.9253559] vpanic() at netbsd:vpanic+0x214 [ 1233.9342071] _GLOBAL__sub_D_65535_0_cpu_configure() at netbsd:_GLOBAL__sub_D_65535_0_cpu_configure [ 1233.9519194] callout_destroy() at netbsd:callout_destroy+0x118 [ 1233.9651920] itimerfree() at netbsd:itimerfree+0x16a [ 1233.9784661] timers_free() at netbsd:timers_free+0x308 [ 1233.9873165] exit1() at netbsd:exit1+0x25b [ 1234.0005970] sys_exit() at netbsd:sys_exit+0x6c [ 1234.0138740] syscall() at netbsd:syscall+0x348 [ 1234.0182968] --- syscall (number 1) --- [ 1234.0227229] 7aa42bafe47a: [ 1234.0271498] cpu1: End traceback... [ 1234.0315730] dumping to dev 4,1 (offset=0, size=0): not possible [ 1234.0404234] rebooting... SeaBIOS (version 1.8.2-20190322_093631-google) Total RAM Size = 0x00000001e0000000 = 7680 MiB CPUs found: 2 Max CPUs supported: 2 found virtio-scsi at 0:3 virtio-scsi vendor='Google' product='PersistentDisk' rev='1' type=0 removable=0 virtio-scsi blksize=512 sectors=4194304 = 2048 MiB drive 0x000f29c0: PCHS=0/0/0 translation=lba LCHS=520/128/63 s=4194304 Booting from Hard Disk 0... >> NetBSD/x86 BIOS Boot, Revision 5.10 (Tue Jul 17 14:59:51 UTC 2018) (from NetBSD 8.0) >> Memory: 639/3144640 k 1. Boot normally 2. Boot single user 3. Disable ACPI 4. Disable ACPI and SMP 5. Drop to boot prompt