Regression in 2.6.36-rc1 bisected to commit 9d8888c

Regression in 2.6.36-rc1 bisected to commit 9d8888c

[Larry Finger]

With 2.6.36-rc1 from the mainline git tree, my x86_64 system running on an AMD
Turion 64 x2 TL-60 has required pressing keys to get booting to advance. This
behavior begins as soon as the kernel is loaded. I bisected the problem to:

commit 9d8888c2a214aece2494a49e699a097c2ba9498b
Author: Hans Rosenfeld <hans.rosenfeld@amd.com>
Date:   Wed Jul 28 19:09:31 2010 +0200

    x86, cpu: Clean up AMD erratum 400 workaround

    Remove check_c1e_idle() and use the new AMD errata checking framework
    instead.

    Signed-off-by: Hans Rosenfeld <hans.rosenfeld@amd.com>
    LKML-Reference: <1280336972-865982-2-git-send-email-hans.rosenfeld@amd.com>
    Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

Reverting this patch allows the current 2.6.36-rc1+ to boot normally.

This problem is entered into the Kernel Bugzilla as Bug #16636.

Larry

Re: Regression in 2.6.36-rc1 bisected to commit 9d8888c

[Borislav Petkov]

From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Thu, Aug 19, 2010 at 09:26:43PM -0500

> With 2.6.36-rc1 from the mainline git tree, my x86_64 system running on an AMD
> Turion 64 x2 TL-60 has required pressing keys to get booting to advance. This
> behavior begins as soon as the kernel is loaded. I bisected the problem to:
> 
> commit 9d8888c2a214aece2494a49e699a097c2ba9498b
> Author: Hans Rosenfeld <hans.rosenfeld@amd.com>
> Date:   Wed Jul 28 19:09:31 2010 +0200
> 
>     x86, cpu: Clean up AMD erratum 400 workaround
> 
>     Remove check_c1e_idle() and use the new AMD errata checking framework
>     instead.
> 
>     Signed-off-by: Hans Rosenfeld <hans.rosenfeld@amd.com>
>     LKML-Reference: <1280336972-865982-2-git-send-email-hans.rosenfeld@amd.com>
>     Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
> 
> Reverting this patch allows the current 2.6.36-rc1+ to boot normally.
> 
> This problem is entered into the Kernel Bugzilla as Bug #16636.

Fix is already upstream: http://git.kernel.org/tip/07a7795ca2e6e66d00b184efb46bd0e23d90d3fe

Can you verify it fixes your issue too please?

Thanks.

-- 
Regards/Gruss,
Boris.

Advanced Micro Devices GmbH
Einsteinring 24, 85609 Dornach
General Managers: Alberto Bozzo, Andrew Bowd
Registration: Dornach, Gemeinde Aschheim, Landkreis Muenchen
Registergericht Muenchen, HRB Nr. 43632

Re: Regression in 2.6.36-rc1 bisected to commit 9d8888c

[Larry Finger]

On 08/20/2010 02:51 AM, Borislav Petkov wrote:
> From: Larry Finger <Larry.Finger@lwfinger.net>
> Date: Thu, Aug 19, 2010 at 09:26:43PM -0500
> 
>> With 2.6.36-rc1 from the mainline git tree, my x86_64 system running on an AMD
>> Turion 64 x2 TL-60 has required pressing keys to get booting to advance. This
>> behavior begins as soon as the kernel is loaded. I bisected the problem to:
>>
>> commit 9d8888c2a214aece2494a49e699a097c2ba9498b
--snip--
>>
>> This problem is entered into the Kernel Bugzilla as Bug #16636.
> 
> Fix is already upstream: http://git.kernel.org/tip/07a7795ca2e6e66d00b184efb46bd0e23d90d3fe
> 
> Can you verify it fixes your issue too please?

Yes, it does fix my issue. I will note that a patch is available on the Bug report.

Thanks,

Larry