Commit 3be6fa6d authored by David Goodell's avatar David Goodell
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[svn-r4103] Fix for an incorrect valgrind warning in the memory allocation code.

No reviewer.
parent e064da2a
......@@ -436,8 +436,16 @@ called in %s at line %d\n", world_rank, (long)a + sizeof(TrSPACE),
/* FIXME why do we skip the first few ints? [goodell@] */
nset = head->size - 2 * sizeof(int);
if (nset > 0)
if (nset > 0) {
/* If an upper layer (like the handle allocation code) ever used the
VALGRIND_MAKE_MEM_NOACCESS macro on part/all of the data we gave
them then our memset will elicit "invalid write" errors from
valgrind. Mark it as accessible but undefined here to prevent this. */
VALGRIND_MAKE_MEM_UNDEFINED(ahead + 2 * sizeof(int), nset);
memset( ahead + 2 * sizeof(int), TRFreedByte, nset );
free( a );
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