lkml.org 
[lkml]   [2007]   [Feb]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: SLUB: The unqueued Slab allocator
From
From: Christoph Lameter <clameter@engr.sgi.com>
Date: Fri, 23 Feb 2007 21:47:36 -0800 (PST)

> On Sat, 24 Feb 2007, KAMEZAWA Hiroyuki wrote:
>
> > >From a viewpoint of a crash dump user, this merging will make crash dump
> > investigation very very very difficult.
>
> The general caches already merge lots of users depending on their sizes.
> So we already have the situation and we have tools to deal with it.

But this doesn't happen for things like biovecs, and that will
make debugging painful.

If a crash happens because of a corrupted biovec-256 I want to know
it was a biovec not some anonymous clone of kmalloc256.

Please provide at a minimum a way to turn the merging off.

I also agree with Andi in that merging could mess up how object type
local lifetimes help reduce fragmentation in object pools.

-
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: 2007-02-24 06:57    [from the cache]
©2003-2011 Jasper Spaans