[ 263.9920390] fatal page fault in supervisor mode
[ 264.0022588] trap type 6 code 0 rip 0xffffffff80fd43dc cs 0x8 rflags 0x10287 cr2 0xffff900000000000 ilevel 0 rsp 0xffffaa016ef66c88
[ 264.0157890] curlwp 0xffffaa0012f940e0 pid 13334.3 lowest kstack 0xffffaa016ef5f2c0
[ 264.0233404] panic: trap
[ 264.0233404] cpu0: Begin traceback...
[ 264.0233404] WARNING: SPL NOT vLOpWaEnRiEcD( )O Na t SYSCALL 56 2n4e9tb EsXdI:Tv p7ane6i1c0+60bx20 174


[ 264.0320886] WARNING: SPL NOT LOWERED ON SYSCALsL n0p r-i7n1t2f4()64 0a tE XIT 168106bn0e t7b
s[
[  22664.4.03032208088866]]  dW:AsnRNpIrNiGn:t fS
[
 264.0320886] PL NOT LOWERED ON SYSCALL 0 -7124s2t0a8r tlEXwIpT( ) 16a8t 106b0 7
[ 264.0320886] netbsd:startlwp
[ 264.0320886] alltraps() at netbsd:alltraps+0xb2
[ 264.0320886] shm_delete_mapping() at netbsd:shm_delete_mapping+0x7f
[ 264.0320886] sys_shmat() at netbsd:sys_shmat+0x4cd
[ 264.0320886] sys___syscall() at netbsd:sys___syscall+0xe2
[ 264.0320886] syscall() at netbsd:syscall+0x348
[ 264.0320886] --- syscall (number 198) ---
[ 264.0320886] 778bad63f4aa:
[ 264.0320886] cpu0: End traceback...

[ 264.0320886] dumping to dev 4,1 (offset=0, size=0): not possible
[ 264.0320886] rebooting...
SeaBIOS (version 1.8.2-20190308_060531-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 0x000f29d0: 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