diff --git a/exp-drd/tests/pth_barrier2.stderr.exp b/exp-drd/tests/pth_barrier2.stderr.exp
new file mode 100644
index 0000000..b1a6f0b
--- /dev/null
+++ b/exp-drd/tests/pth_barrier2.stderr.exp
@@ -0,0 +1 @@
+ERROR SUMMARY: 32 errors from 32 contexts
diff --git a/exp-drd/tests/pth_barrier2.vgtest b/exp-drd/tests/pth_barrier2.vgtest
new file mode 100644
index 0000000..db5a576
--- /dev/null
+++ b/exp-drd/tests/pth_barrier2.vgtest
@@ -0,0 +1,3 @@
+prog: pth_barrier
+args: 2 32 1
+stderr_filter: filter_error_summary
diff --git a/exp-drd/tests/pth_barrier3.stderr.exp b/exp-drd/tests/pth_barrier3.stderr.exp
new file mode 100644
index 0000000..7e1382d
--- /dev/null
+++ b/exp-drd/tests/pth_barrier3.stderr.exp
@@ -0,0 +1 @@
+ERROR SUMMARY: 31 errors from 31 contexts
diff --git a/exp-drd/tests/pth_barrier3.vgtest b/exp-drd/tests/pth_barrier3.vgtest
new file mode 100644
index 0000000..557ad26
--- /dev/null
+++ b/exp-drd/tests/pth_barrier3.vgtest
@@ -0,0 +1,3 @@
+prog: pth_barrier
+args: 32 1 1
+stderr_filter: filter_error_summary