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xen-devel
[Xen-devel] Re: [bisected] 2.6.31 regression: fails to boot as xen guest
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To: |
Pekka Enberg <penberg@xxxxxxxxxxxxxx> |
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Subject: |
[Xen-devel] Re: [bisected] 2.6.31 regression: fails to boot as xen guest |
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From: |
Arnd Hannemann <hannemann@xxxxxxxxxxxxxxxxxxx> |
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Date: |
Tue, 25 Aug 2009 20:22:21 +0200 |
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Cc: |
Jeremy Fitzhardinge <jeremy@xxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>, LKML <linux-kernel@xxxxxxxxxxxxxxx>, "hannes@xxxxxxxxxxx" <hannes@xxxxxxxxxxx>, Arnd Hannemann <Arnd.Hannemann@xxxxxxxxxxxxxxxxxxx>, "torvalds@xxxxxxxxxxxxxxxxxxxx" <torvalds@xxxxxxxxxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxx> |
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Tue, 25 Aug 2009 11:22:48 -0700 |
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<1251223399.13451.5.camel@penberg-laptop> |
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<4A9407B1.6020400@xxxxxxxxxxxxxxxxxxx> <84144f020908250929t7d4a74f1n4827de04e5c4c56a@xxxxxxxxxxxxxx> <4A94161A.2020609@xxxxxxxxxxxxxxxxxxx> <1251219129.4852.1.camel@penberg-laptop> <4A94242E.30309@xxxxxxxxxxxxxxxxxxx> <1251223399.13451.5.camel@penberg-laptop> |
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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...
Best regards,
Arnd
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