pixmap leak in KDE 4.5 RC2

[Andrei Nistor]

Hello everyone, 

I've noticed that the X11 memory usage in plasma is rising steadily in plasma. 
A few hours after I log in, the X11 memory usage can reach 50MB.

I've tried to track this issue down with SadEagle in #kde-devel and he 
suggested to use ktracepixmap and kdumppixmap from playground.

The dump can be found at http://filebin.ca/mrjwbt/pixmaps-dump.tar.bz2

The total usage when the dump was taken was around 30MB. I've noticed that the 
'1' that appears in the systray when a notification is displayed appears about 
200 times in the dump, using ~500K of memory. There are also lots of black 
squares using ~7.5M of memory. 

I'd like to see this fixed by the time 4.5 is released.

Some system information: 
OS: Fedora 13 x86_64
GPU: Nvidia GeForce 8600GT, using the proprietary driver

I was unable to reproduce this on my netbook (eeepc 1000H), but it happens 
every time on my PC.

If you need more info, please ask.

Andrei