2010-08-20 02:25:47

by Larry Finger

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

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 <[email protected]>
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 <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: H. Peter Anvin <[email protected]>

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


2010-08-20 07:51:35

by Borislav Petkov

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

From: Larry Finger <[email protected]>
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 <[email protected]>
> 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 <[email protected]>
> LKML-Reference: <[email protected]>
> Signed-off-by: H. Peter Anvin <[email protected]>
>
> 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

2010-08-20 13:53:49

by Larry Finger

[permalink] [raw]
Subject: Re: Regression in 2.6.36-rc1 bisected to commit 9d8888c

On 08/20/2010 02:51 AM, Borislav Petkov wrote:
> From: Larry Finger <[email protected]>
> 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