Added sigismember tests.
diff --git a/runtest/stress.part3 b/runtest/stress.part3
index 499c0bb..30e2e0b 100644
--- a/runtest/stress.part3
+++ b/runtest/stress.part3
@@ -741,6 +741,9 @@
 
 sighold02 sighold02
 
+sigismember01 cd $LTPROOT/testcases/bin;sigismember01
+sigismember02 cd $LTPROOT/testcases/bin;sigismember02
+
 signal01 signal01
 signal02 signal02
 signal03 signal03
diff --git a/runtest/syscalls b/runtest/syscalls
index cd57084..92d36af 100644
--- a/runtest/syscalls
+++ b/runtest/syscalls
@@ -741,6 +741,9 @@
 
 sighold02 sighold02
 
+sigismember01 cd $LTPROOT/testcases/bin;sigismember01
+sigismember02 cd $LTPROOT/testcases/bin;sigismember02
+
 signal01 signal01
 signal02 signal02
 signal03 signal03