On second though let's hold off on the core dump, I realize with how many lines you're sorting the dump must be excessively large. Let's hope we can nail it with a proper stack trace first. On Fri, May 3, 2013 at 1:09 AM, Chen Guo wrote: > Hi Kevin,if it's not too much trouble a core dump would also be nice to > have, particularly given how difficult this seems to be to reproduce. > > > On Wed, May 1, 2013 at 1:21 PM, Paul Eggert wrote: > >> Can you build coreutils without optimization >> (make CFLAGS='-g3') and get a backtrace from >> that version? That might be easier to diagnose. >> >> >> >> >