KWin major memory leak

[Falk Ahlendorf]

Afterthe upgrade from Kubuntu 13.04 to Kubuntu 13.10 I'm observing that KWin is leaking about 40Mbyte/min while running OpenGL 3.x applications like (wine, TF2, ...).

KWin only leaks memory while compositing is enabled and in the moment the OpenGL 3 program is closed all the leaked memory is released with it.

 * There is no memory leaked while compositing is disabled
 * Disabling the blurring effect reduces the memory leak, but it is still observable while running OpenGL 3 programs around 5MByte/min
 * OpenGL 1.x programs seem to have no effect on the amount of memory leaked. I tried it with glxgears and I didn't observe any memory leak.

I'm not sure but the bug https://bugs.kde.org/show_bug.cgi?id=327291 is maybe related, but I observe the leaked memory only while running OpenGL 3 applications, moving windows, switching activities have no effect on my system.

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: kde-window-manager 4:4.11.2-0ubuntu1
ProcVersionSignature: Ubuntu 3.11.0-14.21-generic 3.11.7
Uname: Linux 3.11.0-14-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.12.5-0ubuntu2.1
Architecture: amd64
Date: Thu Dec 19 15:41:05 2013
InstallationDate: Installed on 2011-11-03 (776 days ago)
InstallationMedia: Kubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
MarkForUpload: True
ProcEnviron:
 LANGUAGE=de_DE
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: kde-workspace
UpgradeStatus: Upgraded to saucy on 2013-12-17 (2 days ago)

[Harald Sitter (apachelogger)]

Martin, any thoughts?

[Harald Sitter (apachelogger)]

lol.

Please report the issue at http://bugs.kde.org so that Martin can comment on it. If the issue cause was identified feel free to reopen this bug.