possible memory leak in ubuntu-location-serviced on mako #281

[Alan Pope 🍺🐧🐱 🦄]

I ran https://raw.github.com/pixelb/ps_mem/master/ps_mem.py every 5 mins and noticed ubuntu-location-serviced memory use climbing at around 0.5MiB/minute.

ps_2014-04-08-104122.txt: 18.3 MiB + 609.5 KiB = 18.9 MiB ubuntu-location-serviced
ps_2014-04-08-104726.txt: 21.6 MiB + 483.5 KiB = 22.1 MiB ubuntu-location-serviced
ps_2014-04-08-105332.txt: 24.9 MiB + 486.0 KiB = 25.4 MiB ubuntu-location-serviced
ps_2014-04-08-105939.txt: 28.3 MiB + 489.0 KiB = 28.8 MiB ubuntu-location-serviced
ps_2014-04-08-110545.txt: 31.6 MiB + 491.5 KiB = 32.1 MiB ubuntu-location-serviced
ps_2014-04-08-111152.txt: 34.9 MiB + 494.5 KiB = 35.4 MiB ubuntu-location-serviced
ps_2014-04-08-111759.txt: 38.3 MiB + 497.0 KiB = 38.8 MiB ubuntu-location-serviced
ps_2014-04-08-112406.txt: 41.6 MiB + 500.0 KiB = 42.1 MiB ubuntu-location-serviced
ps_2014-04-08-113012.txt: 44.9 MiB + 502.5 KiB = 45.4 MiB ubuntu-location-serviced
ps_2014-04-08-113619.txt: 48.3 MiB + 504.5 KiB = 48.8 MiB ubuntu-location-serviced
ps_2014-04-08-114226.txt: 51.6 MiB + 508.0 KiB = 52.1 MiB ubuntu-location-serviced

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: ubuntu-location-service-bin 0.0.2+14.04.20140307-0ubuntu1
Uname: Linux 3.4.0-5-mako armv7l
ApportVersion: 2.14.1-0ubuntu1
Architecture: armhf
Date: Tue Apr 8 11:44:23 2014
InstallationDate: Installed on 2014-04-08 (0 days ago)
InstallationMedia: Ubuntu Trusty Tahr (development branch) - armhf (20140408)
SourcePackage: location-service
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Robert Bruce Park (robru)]

I see this as well (indeed about 0.5 or 0.6 MiB/min), didrocks asked me to try reverting dbus-cpp and process-cpp to older versions to see if they cause the leak, but going back several versions of each has had no effect on the leak.

[Robert Bruce Park (robru)]

The version of location-service from Feb 11th also exhibits this behavior.

[Robert Bruce Park (robru)]

Just doing some bisecting here. I reproduced this in image 260 but not 240.

[Robert Bruce Park (robru)]

Huh, not sure what's happening, I just reproduced this with image 240. popey can you go back a few images and confirm this isn't a new regression?

http://paste.ubuntu.com/7223435/

[Robert Bruce Park (robru)]

Oops, here's the same paste but without the broken highlighting: http://paste.ubuntu.com/7223440/

[Thomas Voß (thomas-voss)]

I cannot reproduce the issue and the test suite is green under valgrind. Marking as incomplete.

[Launchpad Janitor (janitor)]

[Expired for location-service (Ubuntu) because there has been no activity for 60 days.]