Updated documentation.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@9216 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/drd/drd_barrier.c b/drd/drd_barrier.c
index e20447f..d2f477f 100644
--- a/drd/drd_barrier.c
+++ b/drd/drd_barrier.c
@@ -509,6 +509,10 @@
/**
* Report that *_barrier_destroy() has been called but that this call was
* not synchronized with the last *_barrier_wait() call on the same barrier.
+ *
+ * This topic has been discussed extensively on comp.programming.threads
+ * (February 3, 2009). See also
+ * <a href="http://groups.google.com/group/comp.programming.threads/browse_thread/thread/4f65535d6192aa50/a5f4bf1e3b437c4d">Immediately destroying pthread barriers</a>.
*/
static
void barrier_report_wait_delete_race(const struct barrier_info* const p,