Re: dom0 crash on boot

[Christoph Egger <Christoph_Egger%gmx.de@localhost>]

On Friday 19 March 2010 18:15:11 Christoph Egger wrote:
> Hi!
>
> I got this crash during boot of dom0:
>
> ioapic0: can't remap to apid 0
> ioapic1 at mainbus0 apid 1, virtual wire mode
> PHYSDEVOP_APIC_WRITE ret -28
> panic: PHYSDEVOP_APIC_WRITE
> fatal breakpoint trap in supervisor mode
> trap type 1 code 0 rip ffffffff801fd6cd cs 10000e030 rflags 46 cr2  0 cpl 8
> rsp fffffff0
> Stopped in pid 0.1 (system) at  netbsd:breakpoint+0x5:  leave
> breakpoint() at netbsd:breakpoint+0x5
> panic() at netbsd:panic+0x28f
> ioapic_attach() at netbsd:ioapic_attach+0x621
> config_attach_loc() at netbsd:config_attach_loc+0x16d
> mpacpi_config_ioapic() at netbsd:mpacpi_config_ioapic+0x5e
> acpi_madt_walk() at netbsd:acpi_madt_walk+0x3f
> mpacpi_scan_apics() at netbsd:mpacpi_scan_apics+0x8c
> mainbus_attach() at netbsd:mainbus_attach+0x151
> config_attach_loc() at netbsd:config_attach_loc+0x16d
> cpu_configure() at netbsd:cpu_configure+0x25
> main() at netbsd:main+0x210

Removing the panic line in sys/arch/xen/include/i82093var.h
makes netbsd dom0 booting.

The write fails because Xen disabled the ioapic pin.
Just ignore the failure and netbsd dom0 boots.

Christoph