A complete verbose boot log with "trace" and "show registers" can be downloaded here: http://www.seufer.de/crash_report.gz
If I can do anything else please let me know. >Synopsis: kernel panic during boot on Dell Power Edge R710 >Category: system i386 >Environment: System : OpenBSD 5.0 Details : OpenBSD 5.0 (GENERIC) #43: Wed Aug 17 10:10:52 MDT 2011 dera...@i386.openbsd.org:/usr/src/sys/arch/i386/compile/GENERIC Architecture: OpenBSD.i386 Machine : i386 >Description: During the boot squence the system just stop booting with a panic. The system boots fine with OpenBSD 4.9. >How-To-Repeat: Boot OpenBSD 5.0 on Dell Power Edge R710 >Fix: Non known Here are the last messages: >>> probing for pcic2 >>> probing for pcic2 failed panic: ioapic1: can't alloc vector for pin 0 at level 60 Stopped at Debugger+0x4: popl %ebp Debugger(d3f12fc0,d0a1950c,d0be3ed8,d0be3ed4,d3f2ac00) at Debugger+0x4 panic(d07f6905,d3f13c14,0,60,d0a9ecd0) at panic+0x7a apic_vectorset(d3f13c00,0,60,60,0) at apic_vectorset+0x7b ioapic_enable(d0a737e4,0,d0be3f98,d035c468,d0b2e1b4) at ioapic_enable+0xb0 cpu_configure(d0b2e1b4,1,3,0,0) at cpu_configure+0x3c main(d02004ba,d02004c2,0,0,0) at main+0x3ac RUN AT LEAST 'trace' AND 'ps' AND INCLUDE OUTPUT WHEN REPORTING THIS PANIC! DO NOT EVEN BOTHER REPORTING THIS WITHOUT INCLUDING THAT INFORMATION! ddb> trace Debugger(d3f12fc0,d0a1950c,d0be3ed8,d0be3ed4,d3f2ac00) at Debugger+0x4 panic(d07f6905,d3f13c14,0,60,d0a9ecd0) at panic+0x7a apic_vectorset(d3f13c00,0,60,60,0) at apic_vectorset+0x7b ioapic_enable(d0a737e4,0,d0be3f98,d035c468,d0b2e1b4) at ioapic_enable+0xb0 cpu_configure(d0b2e1b4,1,3,0,0) at cpu_configure+0x3c main(d02004ba,d02004c2,0,0,0) at main+0x3ac ddb> ps PID PPID PGRP UID S FLAGS WAIT COMMAND * 0 -1 0 0 7 0x200 swapper ddb> show registers ds 0x10 es 0x10 fs 0x20 gs 0 edi 0x60 esi 0x100 ebp 0xd0be3ea8 end+0xb311c ebx 0xd07f6905 mpbios_icu_table+0x16d edx 0 ecx 0xd0a0d67c kprintf_mutex eax 0x1 eip 0xd049d8fc Debugger+0x4 cs 0x8 eflags 0x202 esp 0xd0be3ea8 end+0xb311c ss 0x10 Debugger+0x4: popl %ebp