Robert_Pluim(a)BayNetworks.COM (Robert Pluim) writes: Hi Robert, first of all the most important question of debugging: Can you reproduce it, i.e. can you give a sequence of actions which always produces this crash? I had a look at the mailing-list archive and found four crash-reports involving skip-syntax-backward all on Solaris with gcc. I have not yet managed to crash my SUNcc-compiled xemacs but I will recompile with gcc. In one of the messages (ID: 9806/msg00909) there were instructions for crashing: ---------------------------------------------------------------------- Hi, xemacs b46 was core-dumped when doing following operations: % xemacs -q C-x C-f ~/test.c RET (open new file in cc-mode) M-; M-; (press indent-for-comment twice) ---------------------------------------------------------------------- Does this work (i.e. crash) for you? The proposed solution was: ---------------------------------------------------------------------- I found that this is compiler optimization problem (egcs-1.0.2 on sparc solaris-2.5.1). gcc -g -O search.c ... ---> no problem gcc -g -O2 search.c ... ---> core-dumped by above operations. S.Senda ---------------------------------------------------------------------- This might solve the problem for now, but I still think we should track it down a bit more. If you still have the original coredump, please go up to frame #3, do 'print *buffer' and mail the result. I also had a look at the diffs against previous versions (as Steve suggested) and to me they all looked kind of innocent but if you have the time you might still try an older version... Gunnar -- Gunnar Evermann Natural Language Systems Group, University of Hamburg EMail: Gunnar.Evermann(a)nats.informatik.uni-hamburg.de