1 files changed, 2 insertions, 1 deletions
diff --git a/cont.c b/cont.c
index 1c17eaeed1..3e68d897ca 100644
--- a/cont.c
+++ b/cont.c
@@ -520,8 +520,9 @@ fiber_entry(void *arg)
 /*
  * FreeBSD require a first (i.e. addr) argument of mmap(2) is not NULL
  * if MAP_STACK is passed.
+ * http://www.FreeBSD.org/cgi/query-pr.cgi?pr=158755
  */
-#if defined(MAP_STACK) && !defined(__FreeBSD__)
+#if defined(MAP_STACK) && !defined(__FreeBSD__) && !defined(__FreeBSD_kernel__)
 #define FIBER_STACK_FLAGS (MAP_PRIVATE | MAP_ANON | MAP_STACK)
 #else
 #define FIBER_STACK_FLAGS (MAP_PRIVATE | MAP_ANON)