- rs = retainerSetOf((StgClosure *)p);
- if (rs != NULL) {
- for (i = 0; i < rs->num; i++) {
- b = strMatchesSelector( rs->element[i]->cc->label,
- RtsFlags.ProfFlags.retainerSelector );
- if (b) return rtsTrue;
+ // We must check that the retainer set is valid here. One
+ // reason it might not be valid is if this closure is a
+ // a newly deceased weak pointer (i.e. a DEAD_WEAK), since
+ // these aren't reached by the retainer profiler's traversal.
+ if (isRetainerSetFieldValid((StgClosure *)p)) {
+ rs = retainerSetOf((StgClosure *)p);
+ if (rs != NULL) {
+ for (i = 0; i < rs->num; i++) {
+ b = strMatchesSelector( rs->element[i]->cc->label,
+ RtsFlags.ProfFlags.retainerSelector );
+ if (b) return rtsTrue;
+ }