On Fri, Aug 26, 2016 at 03:00:48PM -0400, E V wrote:

Just upgraded from 4.6.5 to 4.7.2 for my btrfs backup server with 32GB
of ram. Only thing that run's on it is an rsync of an NFS filesystem
to the local btrfs. Cached mem tends to hang out around 26-30GB, but
with 4.7.2 the OOM is now going crazy and trying to kill whatever it
can including my ssh and rsync process. Anyone seen anything similar?

  That's probably OOM regression in 4.7. Could you please test this patch:
https://lkml.org/lkml/2016/8/23/145

-- 
Tomasz Torcz              ,,If you try to upissue this patchset I shall be seeking
xmpp: zdzichubg@chrome.pl   an IP-routable hand grenade.'' -- Andrew Morton (LKML)