lkml.org 
[lkml]   [2009]   [Oct]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [Bug #14141] order 2 page allocation failures (generic)
On Mon, Oct 19, 2009 at 04:01:45PM +0200, Karol Lewandowski wrote:
> On Mon, Oct 19, 2009 at 12:54:11PM +0300, Pekka Enberg wrote:
> > On Mon, 2009-10-19 at 11:49 +0200, Tobi Oetiker wrote:
> > > I have updated a fileserver to 2.6.31 today and I see page
> > > allocation failures from several parts of the system ... mostly nfs though ... (it is a nfs server).
> > > So I guess the problem must be quite generic:
> >
> > Yup, it almost certainly is. Does this patch help?
> >
> > http://lkml.org/lkml/2009/10/16/89
>
> This patch seems to help in some cases. Before applying this patch I
> was able to trigger alloc failures on different machine by booting
> kernel with "mem=256MB" and doing:
>
> $ gitk on-full-tree &
> # rmmod e100
> ... wait for few MBs in swap
> # modprobe e100; ifup --force ethX
>
> So here this patch helped -- with it, I was unable to trigger page
> allocation failures (testing was short, tough). However, as I said
> here[1], I applied both of Mel's patches (including this one) and that
> didn't help my orginal issue (failures after suspend).
>
> [1] http://lkml.org/lkml/2009/10/17/109
>

Can you test with my kswapd patch applied and commits 373c0a7e,8aa7e847
reverted please?

--
Mel Gorman
Part-time Phd Student Linux Technology Center
University of Limerick IBM Dublin Software Lab


\
 
 \ /
  Last update: 2009-10-19 16:09    [W:0.581 / U:0.144 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site