2009-07-02 Ulrich Drepper <drepper@redhat.com> * malloc/malloc.c [ATOMIC_FASTBINS] (_int_free): Add full barrier when adding to fast bin list. --- libc/malloc/malloc.c +++ libc/malloc/malloc.c @@ -4822,6 +4822,7 @@ _int_free(mstate av, mchunkptr p) goto errout; } p->fd = fd = old; + atomic_full_barrier (); } while ((old = catomic_compare_and_exchange_val_acq (fb, p, fd)) != fd); #else