Bug 282604

I can verify  on 3 different v10.2 machines on my local LAN that this occurs.   I never noticed it before but it does explain a couple of unexplained and unwanted logins, or re-logins that happened when I was using a lot of system memory and opened a sysinfo window and refreshed it a couple of times to see if a drive still had enough space and bam...I was logged out and presented with a login screen and all of my running programs were killed in the process.   This has happened both before and after  I upgraded KDE to the latest available version.

Verified with Konqueror 3.5.5 on OpenSuSE 10.2  . You have to refresh it quite often (e.g. twice a sec) to be able to see it. 

top shows growing usage of VIRT, but xrestop doesn't show any significant change -> looks like X bug. Also, I can only reproduce this problem only on testing machine with ATI card (radeon driver) but not on my primary machine with nVidia card (nvidia driver), I'm not sure if it's relevant.

I tried "sysinfo:/" in konqueror

--> Protocol not supported 
    sysinfo

How can one reproduce this issue?

Created attachment 146275 [details]
testcase

It is part of kdebase3-SuSE, normally installed with KDE. This testcase however reproduces the problem as well (run repeatedly).

Created attachment 146279 [details]
Window showing SYSINFO

Created attachment 146280 [details]
Window showing SYSINFO

On my desktop is an icon called 'My Computer', installed when my user
was created.  As you can see, when that icon is launched, a window is
launched in konqueror pointing to sysinfo:/ showing the state of my
system.   By hitting the refresh icon in the window and observing the
amount of memory displayed, you will see it decrease.   In my system
when I am running large number of programs in other desktops, I can
apparantly run out of memory doing this and I find myself being logged
out and all running processes killed and I am presented with another
login session which starts with my full complement of memory.   None of
my previous programs are running but any that are normally started at
login will be restarted.   

This happens on all of my machines which currently are all at 10.2 and
running 3.5.7 (I believe it is) KDE.   Previously I had no idea why I
was occasionally being logged off until the original poster mentioned
the bug and I tested it and found myself being logged out suddenly after
a while of noticing the decreasing memory.    I don't know if the memory
loss is caused by KDE, sysinfo, X or whereever, I can only 'see' it as
described and feel its effects as noted.

Richard

I bet this doesn't happen on machines, which enabled DRI (same applies to machines, which use NVIDIA driver). This would be another duplicate of Bug #211314. This issue has been fixed for openSUSE 10.3 (Mesa update). Workaround for 10.2: Enable DRI. (add ' Load "dri" to section "Module" of /etc/X11/xorg.conf).

(In reply to comment #9)
> I bet this doesn't happen on machines, which enabled DRI (same applies to
> machines, which use NVIDIA driver). This would be another duplicate of Bug
> #211314. This issue has been fixed for openSUSE 10.3 (Mesa update). Workaround
> for 10.2: Enable DRI. (add ' Load "dri" to section "Module" of
> /etc/X11/xorg.conf).
> 

I applied the patch as you suggested to the /etc/X11/xorg.conf and logged out (did not reboot machine) and upon relogging in, I tested the sysinfo refresh repeatedly with NO apparant memory leak.   Thus, your hunch appears to be on track.   At least you now know where to look to actually fix it for everyone.   Thanks.

*** This bug has been marked as a duplicate of bug 211314 ***