[parisc-linux] Latest palinux crash -- VM problem?

[Thibaut VARENE]

Please also review this report I posted a while ago:

http://www.pateam.org/archive/dumps/palinuxcrash20060827.txt

It looks much to me like a hardware problem. See in particular the
reported chassis log and the I/O Module Errors at the end of the dump.

HTH

T-Bone

On 9/3/06, Matthew Wilcox <matthew at wil.cx> wrote:
> On Sat, Sep 02, 2006 at 11:00:52PM -0600, Matthew Wilcox wrote:
> > The memory error log indicates an uncorrectable error, unfortuantely I
> > don't understand it enough to decode what it's saying.
> >
> > Could it be a different manifestation of the same problem that bites
> > PA8800?  That is, do we have the same address mapped twice and we're
> > upsetting Astro by writing back cachelines that are supposed to be on
> > the other CPU?
> >
> > I should probably try to find Astro docs at some point so I can find out
> > how much it cares about this kind of thing.
>
> OK, got the Astro docs.
>
> > Error Status Reg           = 0x0000000000000010
>
> This bit says that Astro observed a BROAD_ERROR transaction on the
> Runway bus.  ie Astro didn't cause the error, it only noticed it and
> went fatal in response.  It looks like CPU 0 sent the broadcast error,
> so I need to try to figure out what made CPU 0 go funny.
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-- 
Thibaut VARENE
http://www.parisc-linux.org/~varenet/