lkml.org 
[lkml]   [2007]   [Jun]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Intel's response Linux/MTRR/8GB Memory Support / Why doesn't the kernel realize the BIOS has problems and re-map appropriately?
On 6/4/07, Eric W. Biederman <ebiederm@xmission.com> wrote:
>
> Exactly, and given that this is a fairly easy thing to do, and that
> occasionally we see systems where this happens (even if their BIOS is
> later fixed). It is likely worth it for someone to write up the patch
> and that compare MTRRs with available memory, and to complain and
> reserve all memory that MTRRs claim is not write-back.
>
that is good.
Sometime BIOS can not even keep mtrr to the identical between
different CPU in SMP system.

Or reset mtrr according to e820 table.

YH
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2007-06-05 03:03    [W:2.089 / U:0.128 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site