http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46751
--- Comment #2 from Erik J Groeneveld <erik at cq2 dot nl> 2010-12-01 19:27:26 UTC --- (In reply to comment #1) > backtrace is part of libc and not GCC. Thank you, I'll post it there too. Could it also have to do something with exception handling code in the c++ runtime that calls unexpected_handler? I think it somehow leaves the stack in a state that backtrace does not expect. That still leaves open the question where the bug is, if any.