* malloc/malloc.c (sYSMALLOc): Avoid infinite loop if MMAP

	keeps failing and heap growth or new heap creation isn't
	successful either.
	* malloc/tst-malloc.c (main): Add new tests.

1 files changed, 11 insertions, 1 deletions

diff --git a/malloc/tst-malloc.c b/malloc/tst-malloc.c
index d555ae46ef..81d279236c 100644
--- a/malloc/tst-malloc.c
+++ b/malloc/tst-malloc.c
@@ -33,7 +33,7 @@ merror (const char *msg)
 int
 main (void)
 {
-  void *p;
+  void *p, *q;
   int save;
 
   errno = 0;
@@ -64,5 +64,15 @@ main (void)
   if (p != NULL)
     merror ("realloc (p, 0) failed.");
 
+  p = malloc (513 * 1024);
+  if (p == NULL)
+    merror ("malloc (513K) failed.");
+
+  q = malloc (-512 * 1024);
+  if (q != NULL)
+    merror ("malloc (-512K) succeeded.");
+
+  free (p);
+
   return errors != 0;
 }