On Fri, May 06, 2011 at 08:42:24AM +0100, Mel Gorman wrote:

1. High-order allocations? You machine is using i915 and RPC, something
   neither of my test machine uses. i915 is potentially a source for
   high-order allocations. I'm attaching a perl script. Please run it as
   ./watch-highorder.pl --output /tmp/highorders.txt
   while you are running tar. When kswapd is running for about 30
   seconds, interrupt it with ctrl+c twice in quick succession and
   post /tmp/highorders.txt

Attached this time :/

-- 
Mel Gorman
SUSE Labs