http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58813
--- Comment #7 from Steve Kargl <sgk at troutmask dot apl.washington.edu> --- On Tue, Oct 22, 2013 at 06:40:22AM +0000, zeccav at gmail dot com wrote: > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58813 > > --- Comment #6 from Vittorio Zecca <zeccav at gmail dot com> --- > I found that > export MALLOC_PERTURB_=256 > produces a quiet NaN. I'll use this one in my .bashrc > It seems to me that the earlier symptom of malfunctioning > is in symbol.c:5001 " dummies = sym->formal;" where sym points the wrong way. What happens if you use -fmax-errors=1?