Hi Joe, thanks for your comment. > I see this bug on my Natty Alpha install. I have to do the LD_PRELOAD > every time though (the work around suggests it only has to be done once).
Hmm, ok, I may have to remove that statement as it appears it may not always apply. Thanks for letting us know. > Question: should software-center be run as root or normal user? I get > different messages in the terminal window that suggest whichever > one I choose is wrong. You should run software-center as normal user, not as root. ** Description changed: Binary package hint: libgl1-mesa-dri --- Software Center error description from apport is: software-center crashed with SIGSEGV in __cxa_allocate_exception() WORKAROUND for the software-center crash: Launch Software Center from the command line as: LD_PRELOAD=/usr/lib/libstdc++.so.6 software-center - - This should only be needed the first time; after this Software Center - should launch correctly without needing the command line. For more details about the software-center crash, please see bug 731724. --- The package libgl1-mesa-dri in Intrepid seems to have been compiled with the option --enable-glx-tls. This triggers a bug in src/glx/x11/glxcurrent.c : The TLS variable __glX_tls_Context is compiled with the TLS model initial-exec, which is only ment for executables. Used in shared libraries, it can break TLS usage in other shared libraries. One example is when libGL is linked beforce libstdc++ in another library, which is then loaded via dlopen(). In this case, the TLS variables in libstdc++ aren't properly initialized, and it will segfault when trying to allocate an exception. I think there are 2 possible solutions: 1. Do not compile with --enabgle-glx-tls 2. Patch mesa to remove the tls-model attribute. I assume this will eat up the performance gain of TLS, since initial-exec is meant as an optimisation for apps not using the GL over dlopen directly or indirectly. Policy information about my libGL package: libgl1-mesa-dri: Installiert: 7.1~rc3-1ubuntu4 Kandidat: 7.1~rc3-1ubuntu4 Versions-Tabelle: *** 7.1~rc3-1ubuntu4 0 500 http://de.archive.ubuntu.com intrepid/main Packages 100 /var/lib/dpkg/status -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/259219 Title: Broken TLS support in libGL.so -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs