[ 262.7997115] panic: kernel diagnostic assertion "pg->wire_count > 0" failed: file "/syzkaller/managers/netbsd/kernel/sys/uvm/uvm_page.c", line 1594 
[ 262.8217439] cpu0: Begin traceback...
[ 262.8297274] vpanic() at netbsd:vpanic+0x214
[ 262.8397321] _GLOBAL__sub_D_65535_0_cpu_configure() at netbsd:_GLOBAL__sub_D_65535_0_cpu_configure
[ 262.8500014] uvm_fault_lower_enter() at netbsd:uvm_fault_lower_enter+0x429
[ 262.8599646] uvm_fault_internal() at netbsd:uvm_fault_internal+0x1c85
[ 262.8797512] uvm_fault_wire() at netbsd:uvm_fault_wire+0x56
[ 262.8897569] uvm_map_pageable() at netbsd:uvm_map_pageable+0x56e
[ 262.8997616] sys_shmat() at netbsd:sys_shmat+0x476
[ 262.9097676] sys___syscall() at netbsd:sys___syscall+0xe2
[ 262.9197723] syscall() at netbsd:syscall+0x32e
[ 262.9197723] --- syscall (number 198) ---
[ 262.9326622] 7b6aa263f4aa:
[ 262.9326622] cpu0: End traceback...

[ 262.9405671] dumping to dev 4,1 (offset=0, size=0): not possible
[ 262.9405671] rebooting...
SeaBIOS (version 1.8.2-20190122_225043-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