lkml.org 
[lkml]   [2001]   [Nov]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: 2.4.>=13 VM/kswapd/shmem/Oracle issue (was Re: Google's mm problems)
On Sun, 18 Nov 2001, Andrea Arcangeli wrote:

> On Sun, Nov 18, 2001 at 07:17:02AM +0100, Mike Galbraith wrote:
> > On Sat, 17 Nov 2001, Andrea Arcangeli wrote:
> >
> > > If all your hardware is PCI nobody will make an allocation from the
> > > ZONE_DMA classzone and so kswapd will never loop on the ZONE_DMA, as
> > > instead can happen with -ac as soon as the ZONE_DMA becomes unfreeable
> > > and under the low watermark (and "unfreeable" of course also means all
> > > anon not locked memory but no swap installed in the machine).
> >
> > We don't fallback to ZONE_DMA anymore? (good)
>
> we still fallback on the ZONE_DMA, otherwise mem=17m wouldn't boot :)

(oops;)

> what we don't do is to try to balance the dma zone if nobody is asking
> memory explicitly from the dma zone [isa users].

Ah.. all clear. Thanks.

-Mike

-
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: 2005-03-22 13:13    [W:0.071 / U:9.840 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site