linux-kernel - Re: nobody cared about IRQ 19 (firewire, on a HP 2510p notebook)

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Message-Id: <1207035673.10388.210.camel@pasglop>
Date:	Tue, 01 Apr 2008 18:41:13 +1100
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	Stefan Richter <stefanr@...6.in-berlin.de>,
	Martin Michlmayr <tbm@...ius.com>,
	linux1394-devel@...ts.sourceforge.net,
	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>
Subject: Re: nobody cared about IRQ 19 (firewire, on a HP 2510p notebook)

On Sun, 2008-03-30 at 22:10 +0200, Thomas Gleixner wrote:
> > I tend to believe it is a problem to be addressed in the x86
> platform support,
> > not a driver problem.
> 
> Depends. It might be unfixable.

We had a similar bogus interrupt issue on GSI 19 with 965gm chipset on
thinkpads recently that ended up being a BIOS issue misconfiguring
something deep inside the chipset. We never knew what exactly, except
that BIOS updates fixed it. Could be something similar.

Ben.


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