| commit | 3850427d9afd4c1ee7b51e357e028e3e38bd9aa3 | |
| author | Krzysztof Helt <krzysztof.h1@wp.pl> | |
| Wed, 3 Sep 2008 23:44:55 +0000 (3 19:44 -0400) | ||
| committer | Greg Kroah-Hartman <gregkh@suse.de> | |
| Thu, 9 Oct 2008 03:22:59 +0000 (8 20:22 -0700) | ||
| tree | 790dd27d7fb10007e0e96221c32b8399a2223831 | treesnapshot (tar.gz zip) |
| parent | 939a3b7956341f34aadeb2e24b394e3bc96bf497 | commitdiff |
x86: fdiv bug detection fix
commit e0d22d03c06c4e2c194d7010bc1e4a972199f156 upstream
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.
This is a partial fix to Bugzilla #9928 - fixes wrong
information about the f00f bug (tested) and probably
for coma bug (I have no cpu to test this).
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Chuck Ebbert <cebbert@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
commit e0d22d03c06c4e2c194d7010bc1e4a972199f156 upstream
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.
This is a partial fix to Bugzilla #9928 - fixes wrong
information about the f00f bug (tested) and probably
for coma bug (I have no cpu to test this).
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Chuck Ebbert <cebbert@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| arch/x86/kernel/cpu/bugs.c | diffblobblamehistory |