Bug#326956: xserver-xorg: Memory leak

[Siep Kroonenberg <siepo@cybercomm.nl>]

On Thu, Sep 08, 2005 at 06:13:49PM +0200, David Mart?nez Moreno wrote:
> El miércoles, 7 de septiembre de 2005 19:27, Michel Dänzer escribió:
> > > Such behavior would be acceptable if X.org forgot old background
> > > images. But it doesn't. Try to successively load a series of
> > > background images, e.g. from the KDE wallpaper collection, and the
> > > memory occupied by Xorg will keep growing.
> >
> > First of all, verify using something like xrestop that it's not actually
> > a client leaking references to the wallpaper pixmaps.
> >
> > Even if that's ruled out, freeing memory that was allocated from the
> > heap can't always be returned to the system immediately because the heap
> > can only shrink down to the highest allocation still in use. If that's
> > the case, it should still be able to re-use a gap sometimes, especially
> > when you switch to a smaller wallpaper, in which case the memory usage
> > reported for the X server shouldn't increase.
> >
> > I'm curious as to which of these might apply to your situation, if any.
> 
> 	Hello, Siep. I have been testing with xrestop and Michel is right. My machine 
> runs KDE 3.4.2 and X.Org 6.8.2.dfsg.1-6, and I cannot see any increment in 
> the memory usage in X. When I use a background, I see KDE Desktop process 
> going up in the comsumption list, but it does not surpass 5917 KB in any 
> case, even when I changed about twenty times my background desktop image.
> 
> 	I even saw Xorg process in a common 'top' with 115 MB of "resident memory". 
> Another round of image switching did not changed Xorg's memory, until my 
> default setting: no background image. In this moment, Xorg even give me back 
> 5 MB of memory, falling to 110 MB.
> 
> 	Is this true for you? If so, I would like to close this bug.
> 
> 	Best regards,
> 
> 
> 		Ender.

I believe there is still a memory leak. After startup, on my system
Xorg takes up about 10mb of memory. This increases to 30mb and more
after one or two days even after closing all applications.

However, today memory use could no longer be increased without limit
just by loading different background images: the memory sometimes
goes up and sometimes down and doesn't go up further than about 3mb
total amount. I don't know what caused the change.

Now that I no longer have a simple way to trigger a memory leak you
are probably right to close this bug.

xserver-xorg is version 6.8.2.dfsg.1-5, and the window manager a
hand-compiled fvwm 2.4.18.

Regards,

-- 
Siep Kroonenberg