Didn't go so well unfortunately, system ended up panicking: Out of
memory and no killable processes. So I guess I'll be staying on 4.6
for a bit longer.

On Sat, Aug 27, 2016 at 9:57 AM, E V [off-list ref] wrote:

OOM killer still killed rsync with swappiness 0, so rebuilt and
rebooted with the patch and restarted the rsync. Seems to be running
fine atm. Cached mem shoots right up to almost all of RAM and stays
there per usual. We'll see how it goes.

On Fri, Aug 26, 2016 at 3:02 PM, Tomasz Torcz [off-list ref] wrote:

quoted

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

quoted

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)

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