On 10/20/2013 09:51 AM, Tomasz Chmielewski wrote:
but I am not sure if that was the right thing to do. This is
producing OOM issues and leading to system crashes (including
eventual panics) with such alarming frequency that I wonder if
perhaps there is something different about my setup than others.
FYI, I'm seeing similar / random hangs on systems with btrfs,
compress-force=zlib, qgroups enabled. The systems have 32 GB RAM.
Sometimes, I can review old logs (after force reboot) and see OOM,
allocation failures and such.
The scenario there are snapshots, rsync with --inplace flag, which can
fragment files a lot.
I'll do some more tests with lots of extents to see if it's
reproducible here as well.
Interestingly, I've generally had qgroups enabled here as well, possibly
on all of these systems. Could that be the culprit?
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