[Date Prev][Date Next] [Thread Prev][Thread Next] [Date Index] [Thread Index]

Re: Bug#949171: linux: Please, enable COMPACTION for armel/marvell to mitigate OOMs



El 17/1/20 a les 19:31, Rogério Brito ha escrit:
Source: linux
Version: 4.19.67-2+deb10u2
Severity: important
X-Debbugs-CC: debian-arm@lists.debian.org

Hi, Ben and others.

I've been getting some OOM errors on my armel/kirkwood device running Debian
stable. One of the reasons for this is, according to the dmesg logs, that
COMPACT (memory compaction) is tried, but not available:

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
$ grep -i compact /boot/config-4.19.0-6-marvell
# CONFIG_COMPACTION is not set
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

I'm running debian stretch on a lacie network space 2 (armel/kirkwood) and lately I'm seeing a lot of OOM errors, however I'm not sure it's just a problem of CONFIG_COMPACTION: the previous kernel had it not set either and I don't remember experiencing that many OOM. I'm seeing them just after the latest kernel update I made on February 9 2020. It's possible that I just missed them previously, though I doubt it since this machine is doing too many things and I would have noticed if some vital process stopped.

The remnant of the kernel (3.16.0) in jessie that I still have on this machine had CONFIG_COMPACTION enabled.


$  grep -i compact /boot/config*
/boot/config-3.16.0-8-kirkwood:CONFIG_COMPACTION=y
/boot/config-4.9.0-11-marvell:# CONFIG_COMPACTION is not set
/boot/config-4.9.0-12-marvell:# CONFIG_COMPACTION is not set


Bye
--
Luca


Reply to: