Re: Ediff frequently crashes emacs.

[Richard Stallman]

Could you try enabling these definitions in lisp.h and recompiling,
and see if it helps you find the bug?

(If it crashes for any other reason, we want to debug that too.)


#if 0
/* Define this temporarily to hunt a bug.  If defined, the size of
   strings is redundantly recorded in sdata structures so that it can
   be compared to the sizes recorded in Lisp strings.  */

#define GC_CHECK_STRING_BYTES 1

/* Define this to check for short string overrun.  */

#define GC_CHECK_STRING_OVERRUN 1

/* Define this to check the string free list.  */

#define GC_CHECK_STRING_FREE_LIST 1

/* Define this to check for malloc buffer overrun.  */

#define XMALLOC_OVERRUN_CHECK 1

/* Define this to check for errors in cons list.  */
/* #define GC_CHECK_CONS_LIST 1 */

#endif /* 0 */