Until I know why, the fix is to disable it.
p4raw-id: //depot/perl@22689
/* PERL_MALLOC_WRAP:
* This symbol, if defined, indicates that we'd like malloc wrap checks.
*/
-#define PERL_MALLOC_WRAP /**/
+/*#define PERL_MALLOC_WRAP /**/
/* CAN_PROTOTYPE:
* If defined, this macro indicates that the C compiler can handle