diff --git a/glibc-2.X-drd.supp b/glibc-2.X-drd.supp
index 2bf6b0508..e4f3ec495 100644
--- a/glibc-2.X-drd.supp
+++ b/glibc-2.X-drd.supp
@@ -71,6 +71,11 @@
    ...
    fun:__deallocate_stack
 }
+{
+   drd-libpthread-__free_stacks
+   drd:ConflictingAccess
+   fun:__free_stacks
+}
 {
    drd-libpthread-__free_tcb
    drd:ConflictingAccess
@@ -233,6 +238,11 @@
    drd:ConflictingAccess
    fun:_ZN10QMutexPool3getEPKv
 }
+{
+   drd-libQtCore-qt_gettime_is_monotonic()
+   drd:ConflictingAccess
+   fun:_Z23qt_gettime_is_monotonicv
+}
 
 #
 # Suppression patterns for libboost.