Hardware is a Netgate Hamakua network appliance (a rebranded Lanner, not sure of the model). It runs fine on 5.7.
I booted the /bsd kernel too (same result) so I could get into ddb, results below. This also happened on the 9/7 snapshot. Might be related to this thread: https://marc.info/?t=144173008400002&r=1&w=2 Thanks, Corey boot> boot /5.8/i386/bsd cannot open hd0a:/etc/random.seed: No such file or directory booting hd0a:/5.8/i386/bsd: 7690836+2030032+189444+0+1069056 [72+414192+409165]=0xb43224 entry point at 0x2000d4 [ using 823844 bytes of bsd ELF symbol table ] Copyright (c) 1982, 1986, 1989, 1991, 1993 The Regents of the University of California. All rights reserved. Copyright (c) 1995-2015 OpenBSD. All rights reserved. http://www.OpenBSD.org OpenBSD 5.8-current (GENERIC) #1197: Fri Oct 2 15:29:04 MDT 2015 dera...@i386.openbsd.org:/usr/src/sys/arch/i386/compile/GENERIC cpu0: Intel(R) Celeron(R) M processor 1.00GHz ("GenuineIntel" 686-class, 0KB L2 cache) 1.01 GHz cpu0: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,TM,PBE,NXE,PERF real mem = 1064845312 (1015MB) avail mem = 1031946240 (984MB) mpath0 at root scsibus0 at mpath0: 256 targets mainbus0 at root bios0 at mainbus0: date 01/14/09, BIOS32 rev. 0 @ 0xf0010, SMBIOS rev. 2.3 @ 0xfb260 (45 entries) bios0: vendor American Megatrends Inc. version "080012" date 01/14/2009 acpi at bios0 function 0x0 not configured mpbios0 at bios0: Intel MP Specification 1.4 cpu0 at mainbus0: apid 0 (boot processor) mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges cpu0: apic clock running at 100MHz mpbios0: bus 0 is type PCI mpbios0: bus 1 is type PCI mpbios0: bus 2 is type PCI mpbios0: bus 3 is type PCI mpbios0: bus 4 is type PCI mpbios0: bus 5 is type PCI mpbios0: bus 6 is type ISA ioapic0 at mainbus0: apid 1 pa 0xfec00000, version 20, 24 pins uvm_fault(0xd0b98620, 0xd0da2000, 0, 4) -> d kernel: page fault trap, code=0 Stopped at __kernel_bss_end+0x128010: cmpl $0x49435024,%eax ddb> trace __kernel_bss_end(49435024,d0c78064,d0c7806a,41acf9e4,7) at __kernel_bss_end+0x1 28010 pcibiosprobe(d2200100,d0b4a7c0,d0d45d2c,d087a005,d0bb25a8) at pcibiosprobe+0x64 config_scan(d0b51244,5,0,0,0) at config_scan+0x10e config_search(0,d2200100,d0d45d2c,0,0) at config_search+0xf4 config_found_sm(d2200100,d0d45d2c,d0875f60,0,2d) at config_found_sm+0x2b biosattach(d22000c0,d2200100,d0d45e40,d03bf0bb,0) at biosattach+0x7e4 config_attach(d22000c0,d0b4a720,d0d45e40,d0593b60,8) at config_attach+0x1bc mainbus_attach(0,d22000c0,0,d20f09e0,0) at mainbus_attach+0x5e config_attach(0,d0b48040,0,0,d0d44000) at config_attach+0x1bc config_rootfound(d09fbff6,0,7,0,d03bcce0) at config_rootfound+0x46 cpu_configure(d09cc2a8,0,1000,cfb3e000,1) at cpu_configure+0x4f main(d02004c1,d02004c9,0,0,0) at main+0x3ef ddb> ps TID PPID PGRP UID S FLAGS WAIT COMMAND * 0 -1 0 0 7 0x10200 swapper ddb> show registers ds 0x10 es 0x10 fs 0x20 gs 0 edi 0xd0c772c4 bios32_entry esi 0xd0b13403 linux_emul_path+0x15b8 ebp 0xd0d45bc8 __kernel_bss_end+0xcbbc8 ebx 0 edx 0xd0da2010 __kernel_bss_end+0x128010 ecx 0 eax 0x49435024 eip 0xd0da2010 __kernel_bss_end+0x128010 cs 0x8 eflags 0x10246 __ALIGN_SIZE+0xf246 esp 0xd0d45b68 __kernel_bss_end+0xcbb68 ss 0x10 __kernel_bss_end+0x128010: cmpl $0x49435024,%eax ddb>