linux-kernel - Re: ohci1394_dma=early crash since 2.6.32 (was Re: [Bug #14487] PANIC: early exception 08 rip 246:10 error ffffffff810251b5 cr2 0)

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Message-ID: <4B68D4CA.2010803@gmail.com>
Date:	Tue, 02 Feb 2010 17:43:38 -0800
From:	"Justin P. Mattock" <justinmattock@...il.com>
To:	Stefan Richter <stefanr@...6.in-berlin.de>
CC:	Dan Carpenter <error27@...il.com>,
	linux1394-devel@...ts.sourceforge.net,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Kernel Testers List <kernel-testers@...r.kernel.org>,
	Jan Beulich <jbeulich@...ell.com>
Subject: Re: ohci1394_dma=early crash since 2.6.32 (was Re: [Bug #14487] PANIC:
 early exception 08 rip 246:10 error	ffffffff810251b5 cr2 0)

o.k. finally finished with the bisect:

reverting this gets things going on 2.6.33-rc5

789d03f584484af85dbdc64935270c8e45f36ef7 is the first bad commit
commit 789d03f584484af85dbdc64935270c8e45f36ef7
Author: Jan Beulich <JBeulich@...ell.com>
Date:   Tue Jun 30 11:52:23 2009 +0100

     x86: Fix fixmap ordering

     The merge of the 32- and 64-bit fixmap headers made a latent
     bug on x86-64 a real one: with the right config settings
     it is possible for FIX_OHCI1394_BASE to overlap the FIX_BTMAP_*
     range.

     Signed-off-by: Jan Beulich <jbeulich@...ell.com>
     Cc: <stable@...nel.org> # for 2.6.30.x
     LKML-Reference: <4A4A0A8702000078000082E8@....id2.novell.com>
     Signed-off-by: Ingo Molnar <mingo@...e.hu>

The only thing I can think of at this point
is maybe the CFLAGS I used to build this system.
(as for the x86_32 working and x86_64 failing not sure);

I'm curious to see if anybody else is hitting this?

Justin P. Mattock
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