Rik van Riel wrote: > Richard Davies wrote: > > I've now triggered a very slow boot at 3x 36GB 8-core VMs on a 128GB > > host (i.e. 108GB on a 128GB host). > > > > It has the same profile with _raw_spin_lock_irqsave and > > isolate_freepages_block at the top. > > That's the page compaction code. > > Mel Gorman and I have been working to fix that, the latest fixes and > improvements are in the -mm kernel already.
Hi Rik, That's good news. Can you point me to specific patches which we can backport to a 3.5.2 kernel to test whether they fix our problem? Thanks, Richard.
