On Sun, Nov 13, 2011 at 01:07:13AM -0600, Bob Tracy wrote: > (...) > "kdm" currently segfaults during kdm-greeting. To reproduce, enter > your login name and tab to the password entry field: "kdm" will > immediately segfault and reinitialize. Using "gdm3" to access the > KDE4 environment works a bit better :-). Once logged in, > "plasma-desktop" segfaults after doing almost anything, including > clicking on the "K" menu and then any submenu such as "System". > The common items showing up in the stack backtraces for both "kdm" > and "plasma-desktop" are QT4 functions: this smells like the same > g++ optimizer bug that kills programs based on "libxul.so", e.g., > "iceweasel".
I finished the non-optimized build of all the qt4-x11 packages, and all things KDE4 now seem to work!! "kdm" works: got logged-in with a KDE4 session. "plasma-desktop" no longer segfaults, BUT... I had just fired-up an instance of "Konsole", and was resizing the terminal window when the machine locked-up solid. Had to hit the reset switch to recover. I don't think the machine crashed: couldn't find any "oops" messages in syslog. The ~/.xsession-errors file had quite a bit of diagnostic information in it, but nothing that seemed relevant to the system freeze. Similarly, the "/var/log/Xorg.0.log*" files contained only expected information. At this point, I conclude we definitely have a g++ 4.4 optimizer bug. It affects at least the binary packages produced from the "qt4-x11" source package, and "iceweasel". The common symptom is application instability manifesting as segfaults. Separate from the optimizer issue, KMS bugs apparently *not* specific to Alpha are being seen by others, and they are seeing black screens, system freezes, etc., same as I am. Bottom line: I have high hopes of having a working KDE4 environment on Alpha before much longer, because the KMS issues are being actively worked at high priority (due to them showing up on supported architectures :-)). --Bob -- To UNSUBSCRIBE, email to debian-alpha-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20111116055559.ga18...@gherkin.frus.com