I confirm the crash on Ubuntu 14.04, 64-bits, with Sage 6.9, as well as with Sage 6.10.beta1, both compiled from source:
Attaching gdb to process id 2853. Saved trace to /home/eric/.sage/crash_logs/sage_crash_iapJz_.log ------------------------------------------------------------------------ Unhandled SIGSEGV: A segmentation fault occurred in Sage. This probably occurred because a *compiled* component of Sage has a bug in it and is not properly wrapped with sig_on(), sig_off(). Sage will now terminate. ------------------------------------------------------------------------ Erreur de segmentation (core dumped) -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.