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Re: [Qemu-devel] x86, nops settings result in kernel crash
From: |
Borislav Petkov |
Subject: |
Re: [Qemu-devel] x86, nops settings result in kernel crash |
Date: |
Thu, 16 Aug 2012 15:48:34 +0200 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Thu, Aug 16, 2012 at 09:35:12AM -0400, Tomas Racek wrote:
> Hi,
>
> I am writing a file system test which I execute in qemu with kernel compiled
> from latest git sources and running it causes this error:
>
> https://bugzilla.kernel.org/show_bug.cgi?id=45971
>
> It works with v3.5, so I ran git bisect which pointed me to:
>
> d6250a3f12edb3a86db9598ffeca3de8b4a219e9 x86, nops: Missing break resulting
> in incorrect selection on Intel
>
> To be quite honest, I don't understand this stuff much but I tried to do some
> debugging and I figured out (I hope) that the crash is caused by setting
> ideal_nops to p6_nops (k8_nops was used before the break statement was added).
Maybe I overlooked it or maybe it was implied but did you try reverting
the patch and rerunning your test? Does it work ok then?
Thanks.
--
Regards/Gruss,
Boris.
- [Qemu-devel] x86, nops settings result in kernel crash, Tomas Racek, 2012/08/16
- Re: [Qemu-devel] x86, nops settings result in kernel crash,
Borislav Petkov <=
- Re: [Qemu-devel] x86, nops settings result in kernel crash, Tomas Racek, 2012/08/16
- Re: [Qemu-devel] x86, nops settings result in kernel crash, Anthony Liguori, 2012/08/16
- Re: [Qemu-devel] x86, nops settings result in kernel crash, Tomas Racek, 2012/08/17
- Re: [Qemu-devel] x86, nops settings result in kernel crash, Borislav Petkov, 2012/08/17
- Re: [Qemu-devel] x86, nops settings result in kernel crash, Tomas Racek, 2012/08/20
- Re: [Qemu-devel] x86, nops settings result in kernel crash, Michael Tokarev, 2012/08/21
- Re: [Qemu-devel] x86, nops settings result in kernel crash, Tomas Racek, 2012/08/21