XMMS and Mozilla started segfaulting not longer after I installed Gentoo. I used the 1.2 install disc, and it was built with gcc2.95. The make.conf had CFLAGS as "-march=i686 -O3 -pipe". Unmerging and remerging gtk+1.2 caused the programs to function again, until I restarted X. Since then, unmerging and remerging gtk+1.2 hasn't worked, nor has the same for Mozilla or XMMS. I tried using the update scripts, hoping that using gcc3.2 would solve the problem. CFLAGS were "-march=athlon-tbird -O3 -pipe -fomit-frame-pointer". I've changing the flags from O3 to O2, and removing the frame pointer omit. Nothing seems to work. The URL provided is an strace from running XMMS. I set the -ff option, but no strace children were created. An strace on mozilla shows that the munmap immediately before the segfault occurs there as well.
Try a fresh install without '-fomit-frame-pointer'. If still issues, reopen.
