Re: Linux 2.6.18-rc6

From: Benjamin Herrenschmidt
Date: Tue Sep 05 2006 - 20:45:13 EST


On Tue, 2006-09-05 at 18:22 -0500, James Bottomley wrote:
> On Wed, 2006-09-06 at 08:20 +1000, Benjamin Herrenschmidt wrote:
> > Yes, it's a PCI error.
>
> Thanks, and the cat of /proc/scsi_host/host<n>/signalling?
>
> My suspicion is the register doesn't actually exist on this card so it
> doesn't actually respond on the bus. However, on my equivalent
> everything works; largely I think because the only PC's I have don't
> know how to signal a PCI error.

Olaf will tell us (I don't have the hardware) but it's indeed a typical
thing .... From my experience, Adaptec tend to very easily throw PCI
aborts at you if it doesn't like something in a register access (which
isn't necessarily a bad thing btw, other vendors are more lenient tho),
and Macs are well known to Machine Check the box when getting a PCI
error while most x86 boxes silently ignore them...

Ben.


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