lkml.org 
[lkml]   [2007]   [Sep]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [00/41] Large Blocksize Support V7 (adds memmap support)
On Tue, 11 Sep 2007 14:12:26 +0200 Jörn Engel <joern@logfs.org> wrote:

> While I agree with your concern, those numbers are quite silly. The
> chances of 99.8% of pages being free and the remaining 0.2% being
> perfectly spread across all 2MB large_pages are lower than those of SHA1
> creating a collision.

Actually it'd be pretty easy to craft an application which allocates seven
pages for pagecache, then one for <something>, then seven for pagecache, then
one for <something>, etc.

I've had test apps which do that sort of thing accidentally. The result
wasn't pretty.
-
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: 2007-09-15 10:49    [W:0.338 / U:1.444 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site