diff --git a/[refs] b/[refs]
index 8114ca78ecdf..0454f6785482 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: d9cfed925448f097ec7faab80d903eb7e5f99712
+refs/heads/master: fe16f088a88fb73161bba8784375c829f7e87b54
diff --git a/trunk/arch/x86/kernel/amd_iommu.c b/trunk/arch/x86/kernel/amd_iommu.c
index 31d56c36010a..543822b39a84 100644
--- a/trunk/arch/x86/kernel/amd_iommu.c
+++ b/trunk/arch/x86/kernel/amd_iommu.c
@@ -783,6 +783,11 @@ static unsigned long dma_ops_alloc_addresses(struct device *dev,
 {
 	unsigned long address;
 
+#ifdef CONFIG_IOMMU_STRESS
+	dom->next_address = 0;
+	dom->need_flush = true;
+#endif
+
 	address = dma_ops_area_alloc(dev, dom, pages, align_mask,
 				     dma_mask, dom->next_address);