diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index a9021cbbb1..6216b2519c 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2014-02-10  Mark Kettenis  <kettenis@gnu.org>
+
+	* gdb.threads/step-after-sr-lock.exp: Avoid executing
+	"kill -SIGUSR1 -1".
+
 2014-02-10  Joel Brobecker  <brobecker@adacore.com>
 
 	* gdb.ada/tick_length_array_enum_idx: New testcase.
diff --git a/gdb/testsuite/gdb.threads/step-after-sr-lock.exp b/gdb/testsuite/gdb.threads/step-after-sr-lock.exp
index 6b93d9c659..bf5ea609ac 100644
--- a/gdb/testsuite/gdb.threads/step-after-sr-lock.exp
+++ b/gdb/testsuite/gdb.threads/step-after-sr-lock.exp
@@ -68,6 +68,9 @@ gdb_continue_to_breakpoint "run to breakpoint"
 gdb_test "info threads" "" "info threads with thread 3"
 
 set testpid [get_value "pid" "get pid of inferior"]
+if { $testpid == -1 } {
+    return -1
+}
 
 gdb_test "set scheduler-locking on"