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-rw-r--r--debug/tst-backtrace2.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/debug/tst-backtrace2.c b/debug/tst-backtrace2.c
index 846ca35555..396d743a53 100644
--- a/debug/tst-backtrace2.c
+++ b/debug/tst-backtrace2.c
@@ -94,6 +94,12 @@ fn3 (void)
 NO_INLINE static int
 do_test (void)
 {
+  /* Test BZ #18084.  */
+  void *buffer[1];
+
+  if (backtrace (buffer, 0) != 0)
+    FAIL ();
+
   fn3 ();
   return ret;
 }