http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56716
--- Comment #6 from Greg <gccbugzi...@tru-traffic.com> 2013-04-25 22:32:13 UTC --- > Can you please provide a backtrace from the crash? I'll be happy to provide a backtrace from the crash. It will take a day or so, as I'm such a novice that I don't yet know how to create a backtrace. In the meantime, here's a new development: The build that crashed was launched using make BOOT_CFLAGS='-O' bootstrap Thinking that I'd need to remove the BOOT_CFLAGS='-O' in order to create a backtrace, I rebuilt using simply make bootstrap Only this time, the bootstrap built to successful completion -- no crash. This used revision 198253 with no changes (that is, I'd first reverted from my working-directory the revision 197165 merged from trunk). Any tips for a novice on how to create a backtrace from the crashed build?