[AndrewM]

Probably I found how to show a problem.

Сrash takes place if to close a window and simultaneously with it a new window will be opened.
It very often shows up during work with the "k3b" or by the "kopete".

I made an attempt to create a sequence at which a crash takes place with large probability.

k3b (Repetition is 30%):
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root$ su USER -c 'sleep 2 ; xterm' & Xorg
xterm# compiz --replace ccp --loose-binding --use-root-window
xterm# perl -i.b1 -pe 's/(hide main window while writing)=false/\1=true/' ~/.kde/share/config/k3brc
xterm# perl -i.b2 -pe 's/(only_create_image)=false/\1=true/' ~/.kde/share/config/k3brc
xterm# dd if=/dev/zero of=/var/tmp/for_k3b_test bs=1m count=100
xterm# k3b --burn --datacd /var/tmp/for_k3b_test
- I push "Start";
- after a burning, I press "Close" and...
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Fatal server error:
Caught signal 11. Server aborting
=====
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* But if to use "hide main window while writing=false" a crash does not take place. Because after a burning, there is not closing of dialog-window and simultaneous opening of main window again, because a main window was not closed.
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kopete (Repetition is 30%):
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- I receive message;
- Kopete show "bubble";
- I push button "View" and...
=====
Fatal server error:
Caught signal 11. Server aborting
=====
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* If disable "show bubble" a crash does not take place.
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With the nvidia-driver of version 100.14.23 and below this problem is not present - all works fine, without crashes.


Sorry for my English.