Re: [2.6] Problem with PDC20265 on system with I865 chipset and PIV HT

From: Ingo Molnar
Date: Sat Jan 14 2006 - 01:47:00 EST



* Andrew Morton <akpm@xxxxxxxx> wrote:

> That's oopsing when trying to write to the APIC:
>
> apic_write_around(APIC_EOI, 0);
>
> <cc's x86 people>
>
> Is there any sane way in which APIC accesses can fault, or does this
> indicate bad hardware?

no - the local APIC in that context is like ordinary memory. If there's
fault, it must be the pagetables.

perhaps the "data corruption and system crash" mentioned in the report
corrupted kernel pagetables?

Ingo
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/