Reproducible on a 20060929 x86_64 Rawhide system : - Boot the computer (rhgb is disabled, FWIW) - Log in through gdm - The GNOME desktop starts to appear... but then X crashes and back to gdm - Log in through gdm again, this time it works Attached is my Xorg log. The next log (when X still works) is identical up until the backtrace, which doesn't occur. My graphics card is an nVidia Quadro FX 3450 of which I'm using the DVI port and the free nv driver. I didn't ever touch the xorg.conf file (FC6t3 DVD install).
Created attachment 137415 [details] Xorg.log with backtrace
Oh, one last possibly important detail : I pass vga=0x317 to the kernel in order to get a nice framebuffer console.
Still 100% reproducible. I get the crash and backtrace after each boot upon the first login, and the second login attempt works fine. I'm really confused. Today I just checked the /var/log/Xorg.0.log.old file, but it only has this as the last line : Backtrace: And doesn't contain the actual backtrace below anymore. Weird. Please let me know if there is any more testing I can do.
The system is now FC6 + all updates, and the problem doesn't happen anymore, so closing this bug.