http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48835
--- Comment #27 from Mikael Pettersson <mikpe at it dot uu.se> 2011-07-17 10:18:25 UTC --- (In reply to comment #26) > Could this be related to that bug? > http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=633754 I can't say for sure, but the symptoms aren't identical. stage2 gnat1 always SEGVs in the same way, but SP is below accessible memory, PC is way high in nowhere land and odd (which isn't allowed), and gdb cannot generate a symbolic stack trace. stage1 gnat1 does work however, which makes me suspect a miscompilation. I may have to try a bisection.