Re: doublefault debugging (was Re: Linux v2.5.62 --- spontaneous reboots)

From: Zwane Mwaikambo (zwane@holomorphy.com)
Date: Wed Feb 19 2003 - 21:55:47 EST

On Wed, 19 Feb 2003, William Lee Irwin III wrote:

> On Wed, Feb 19, 2003 at 09:22:42PM -0500, Zwane Mwaikambo wrote:
> > Here is a triple fault case (2.5.62-pgcl) and since i'm not a Real
> > Man i had to use a simulator ;) Unfortunately i can't unwind the stack.
> >
> > CR2=page fault linear address=0xf7f9bf8c
> > CR3=0x00101000
> > PCD=page-level cache disable=0
> > PWT=page-level writes transparent=0
>
> Looks like either a pagetable or physmap/vmalloc/fixmap screwup.
> What do the bootlogs have for those things?

Verified there were no overlapping regions. If you really really really
want them i can put in some printks

        Zwane 

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