linux-kernel - Re: Mutex debug lock failure [was Re: Bad gcc-4.1.0 leads to Power4 crashes... and power5 too, actually

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Message-ID: <20061221010319.GE16860@austin.ibm.com>
Date:	Wed, 20 Dec 2006 19:03:19 -0600
From:	linas@...tin.ibm.com (Linas Vepstas)
To:	Anton Blanchard <anton@...ba.org>
Cc:	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Ingo Molnar <mingo@...hat.com>, linux-kernel@...r.kernel.org,
	linuxppc-dev@...abs.org
Subject: Re: Mutex debug lock failure [was Re: Bad gcc-4.1.0 leads to Power4 crashes... and power5 too, actually

On Thu, Dec 21, 2006 at 11:36:59AM +1100, Anton Blanchard wrote:
> 
> On Wed, Dec 20, 2006 at 05:46:47PM -0600, Linas Vepstas wrote:
> 
> > System assert at:  file: rtas_io_config.c  -- line: 195
> > rio_hub_num: 10
> > drawer_num: 6
> > phb_num: 3
> > buid: 7
> 
> Looks like a firmware assert. Did you pass in something dodgy to a
> config read/write op? Maybe a bad buid?

Same kernel runs fine on power5. Although it does have patches
applied, those very same patches boot fine when applied to a slightly
older kernel (2.6.19-rc4).  I haven't been messing with buids or 
pci config space (at least not intentionaly).

I'll try again with an unpatched, unmodified kernel. 

--linas
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