From: Arnd Hannemann <hannemann@nets.rwth-aachen.de>
To: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Arnd Hannemann <Arnd.Hannemann@nets.rwth-aachen.de>,
LKML <linux-kernel@vger.kernel.org>,
"hannes@cmpxchg.org" <hannes@cmpxchg.org>,
"torvalds@linux-foundation.org" <torvalds@linux-foundation.org>,
Jeremy Fitzhardinge <jeremy@goop.org>,
"xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>,
Ingo Molnar <mingo@elte.hu>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>
Subject: Re: [bisected] 2.6.31 regression: fails to boot as xen guest
Date: Tue, 25 Aug 2009 21:13:40 +0200 [thread overview]
Message-ID: <4A9437E4.4060609@nets.rwth-aachen.de> (raw)
In-Reply-To: <1251227271.13451.16.camel@penberg-laptop>
Pekka Enberg wrote:
> On Tue, 2009-08-25 at 21:58 +0300, Pekka Enberg wrote:
>> On Tue, 2009-08-25 at 20:22 +0200, Arnd Hannemann wrote:
>>> Pekka Enberg wrote:
>>>> On Tue, 2009-08-25 at 19:49 +0200, Arnd Hannemann wrote:
>>>>> Hi Pekka,
>>>>>
>>>>> Pekka Enberg wrote:
>>>>>> On Tue, 2009-08-25 at 18:49 +0200, Arnd Hannemann wrote:
>>>>>>>> Thanks for doing the bisect! Can we also see your
>>>>>>>> .config also?
>>>>>>> Config for -rc7 is attached. My bisect configs were based
>>>>>>> on that
>>>>>> Thanks! While we wait for the Xen people, you can try the
>>>>>> following patch to see if we can narrow the bug down to
>>>>>> trap_init().
>>>>> Yes seems to be trap_init(). -rc7 with this patch applied
>>>>> boots up to the prompt.
>>>> Thanks for testing! Ingo, what do you think of the following
>>>> patch? AFAICT, x86-32 is the only architecture playing with
>>>> traps in mem_init() so this should be the safest fix for
>>>> 2.6.31.
>>> Hmm, -rc7 + this fix does not work for me :-/ Still hangs before
>>> any output...
>> Arnd, does this work for you?
>
> Here's a version of the patch that actually compiles. :-)
Great, this actually works, too :-)
Boots up to the prompt.
Best regards,
Arnd
next prev parent reply other threads:[~2009-08-25 19:13 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-25 15:48 [bisected] 2.6.31 regression: fails to boot as xen guest Arnd Hannemann
2009-08-25 16:29 ` Pekka Enberg
2009-08-25 16:49 ` Arnd Hannemann
2009-08-25 16:52 ` Pekka Enberg
2009-08-25 17:49 ` Arnd Hannemann
2009-08-25 18:03 ` Pekka Enberg
2009-08-25 18:08 ` Jeremy Fitzhardinge
2009-08-25 18:22 ` Arnd Hannemann
2009-08-25 18:25 ` Ingo Molnar
2009-08-25 18:30 ` Jeremy Fitzhardinge
2009-08-25 18:38 ` Arnd Hannemann
2009-08-25 18:43 ` Pekka Enberg
2009-08-25 19:31 ` Jeremy Fitzhardinge
2009-08-25 19:30 ` Jeremy Fitzhardinge
2009-08-25 18:58 ` Pekka Enberg
2009-08-25 19:07 ` Pekka Enberg
2009-08-25 19:13 ` Arnd Hannemann [this message]
2009-08-26 9:59 ` Benjamin Herrenschmidt
2009-08-25 18:06 ` Jeremy Fitzhardinge
2009-08-25 18:14 ` Pekka Enberg
2009-08-26 11:54 ` Pasi Kärkkäinen
2009-08-26 12:00 ` Pekka Enberg
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