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

From: Borislav Petkov
Date: Fri Aug 20 2010 - 03:51:38 EST


From: Larry Finger <Larry.Finger@xxxxxxxxxxxx>
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@xxxxxxx>
> 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@xxxxxxx>
> LKML-Reference: <1280336972-865982-2-git-send-email-hans.rosenfeld@xxxxxxx>
> Signed-off-by: H. Peter Anvin <hpa@xxxxxxxxxxxxxxx>
>
> 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.

--
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Boris.

Advanced Micro Devices GmbH
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