x86: MTRR workaround for system with stange var MTRRs

Browse source

Impact: don't trim e820 according to wrong mtrr

Ozan reports that his server emits strange warning.
it turns out the BIOS sets the MTRRs incorrectly.

Ignore those strange ranges, and don't trim e820,
just emit one warning about BIOS

Reported-by: Ozan Çağlayan <ozan@pardus.org.tr>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
LKML-Reference: <49BEE1E7.7020706@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

...

This commit is contained in:

Yinghai Lu 2009-03-16 16:33:59 -07:00 • committed by Ingo Molnar

parent d4c90e37a2

commit f0348c438c

3 changed files with 20 additions and 8 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

11

arch/x86/kernel/cpu/mtrr/cleanup.c

View file

16

arch/x86/kernel/cpu/mtrr/main.c

View file

1

arch/x86/kernel/cpu/mtrr/mtrr.h

View file