Re: [PATCH] x86: fdiv bug detection fix
- From: Ingo Molnar <mingo@xxxxxxx>
- Date: Thu, 31 Jul 2008 23:57:12 +0200
* Krzysztof Helt <krzysztof.h1@xxxxx> wrote:
From: Krzysztof Helt <krzysztof.h1@xxxxx>
The fdiv detection code writes s32 integer into
the boot_cpu_data.fdiv_bug.
However, the boot_cpu_data.fdiv_bug is only char (s8)
field so the detection overwrites already set fields for
other bugs, e.g. the f00f bug field.
Use local s32 variable to receive result.
applied to tip/x86/urgent, thanks Krzysztof!
this bug seems to be rather old - i guess new kernels rarely get tested
with those CPUs that are affected by those bugs?
Ingo
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- From: Krzysztof Helt
- [PATCH] x86: fdiv bug detection fix
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