On Fri, Nov 09, 2012 at 09:07:45AM +0100, Zdenek Kabelac wrote: > >fe2c2a106663130a5ab45cb0e3414b52df2fff0c is the first bad commit > >commit fe2c2a106663130a5ab45cb0e3414b52df2fff0c > >Author: Rik van Riel <riel@xxxxxxxxxx> > >Date: Wed Mar 21 16:33:51 2012 -0700 > > > > vmscan: reclaim at order 0 when compaction is enabled > >... > > > >This is plausible since the issue seems to be in the kswapd + compaction > >realm. I've yet to figure out exactly what about this commit results in > >kswapd spinning. > > > >I would be interested if someone can confirm this finding. > > > >-- > >Seth > > > > > On my system 3.7-rc4 the problem seems to be effectively solved by > revert patch: https://lkml.org/lkml/2012/11/5/308 > Ok, while there is still a question on whether it's enough I think it's sensible to at least start with the obvious one. Thanks very much. -- Mel Gorman SUSE Labs -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>