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-rw-r--r--nptl/tst-cancel1.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/nptl/tst-cancel1.c b/nptl/tst-cancel1.c
index 654c8a7a56..690319d8c7 100644
--- a/nptl/tst-cancel1.c
+++ b/nptl/tst-cancel1.c
@@ -63,6 +63,8 @@ tf (void *arg)
       printf ("setcanceltype failed: %s\n", strerror (err));
       exit (1);
     }
+  /* The following code is not standard compliant: the mutex functions
+     must not be called with asynchronous cancellation enabled.  */
 
   err = pthread_mutex_unlock (&m2);
   if (err != 0)