On several machines I observe the same problem. Galeon consistently crashes if you close it with more than one tab open. The one time i managed to get a meaningful stack trace out of it, it showed that the problem was in some gtk_set_tooltip function. Unfortunatly, i can't get it to start under gdb anymore, so i can't give you any more details. But it does crash every time so i guess you should not have trouble reproducing the problem. All the machines are via/amd with sys-devel/gcc-2.95.3-r7 net-www/mozilla-1.0-r2 net-www/galeon-1.2.5 Everything is compiled with march=i686 -O3, but i don't think it's an optimization issue - i've tried recompiling my galeon and gtk with -O2, and the problem still happens.
*** This bug has been marked as a duplicate of 3428 ***