lkml.org 
[lkml]   [2006]   [Feb]   [6]   [last100]   RSS Feed
Views: [more markup]  [less markup]  [headers]  [forward] 
 
Messages in this thread
/
DateMon, 6 Feb 2006 00:19:39 -0800
FromWilliam Lee Irwin III <>
SubjectRe: Hugepages need clear_user_highpage() not clear_highpage()
On Mon, Feb 06, 2006 at 01:18:53PM +1100, David Gibson wrote:
> When hugepages are newly allocated to a file in mm/hugetlb.c, we clear
> them with a call to clear_highpage() on each of the subpages.  We
> should be using clear_user_highpage(): on powerpc, at least,
> clear_highpage() doesn't correctly mark the page as icache dirty so if
> the page is executed shortly after it's possible to get strange
> results.
> This is a bugfix and should go into 2.6.16.
> Signed-off-by: David Gibson <dwg@au1.ibm.com>

Not sure how this got past the usual crapfilters. Sorry about that.

Acked-by: William Irwin <wli@holomorphy.com>


-- wli
-
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: 2006-02-06 09:22    [from the cache]
©2003-2008