I am a fond user of TeXstudio and use the latest subversion version. Ocassionally (hard to say why or when but roghly once a day) working under 64 bit Ubuntu Linux 12.4 fully updated with a Cinnamon 1.4 frontend (cinnamon.linuxmint.com), TeXstudo (today is svn 3117 the last crash happened yesterday) the program suddenly crashes and produces an error message such as (the one of yesterday):
"TeXstudio has CRASHED due to SIGSEV
Do you want to keep it running? This
may cause data corruption."
The error messace has two pushbuttons one says "Yes, try to recover" the other one is "No, kill the program". It is of no use to click in any of them since none does a thing. The whole Linux front end becomes unoperative. The only way I have found to exit from the crash (other tan turning the computer off) is to clic Ctrl+Alt+F2 to enter the command line console. VERY slowly the login prompt appears and you may VERY slowly login. With patience you may use ps -aux to find the process id of gnome and the gnome session and killl both (kill -9 nnnnnnn nnnnnn, replace nnnnn by the propper process id). It may take a while and you will end at the Ubuntu login screen. Strangely, in two occassions when loging back from the prompt acroread seems to be running as hell in the backgroud, although I never started the program. In my Core i7 or Core i5 computers uo to two cores may be busy with acroread in this instances finding it process id and killing it restores everything.
SIGSEV is a memory segmentation fault, as you shurly know.