* src/sysdep.c (handle_sigsegv) [CYGWIN]: Increase STACK_DANGER_ZONE

1 files changed, 7 insertions, 0 deletions

diff --git a/src/sysdep.c b/src/sysdep.c
index 0a0b0ac01d0..91036f07c58 100644
--- a/src/sysdep.c
+++ b/src/sysdep.c
@@ -1646,7 +1646,14 @@ handle_sigsegv (int sig, siginfo_t *siginfo, void *arg)
 
       if (!getrlimit (RLIMIT_STACK, &rlim))
         {
+          /* STACK_DANGER_ZONE has to be bigger than 16K on Cygwin, for
+             reasons explained in
+             https://www.cygwin.com/ml/cygwin/2015-06/msg00381.html.  */
+#ifdef CYGWIN
+          enum { STACK_DANGER_ZONE = 32 * 1024 };
+#else
           enum { STACK_DANGER_ZONE = 16 * 1024 };
+#endif
           char *beg, *end, *addr;
 
           beg = stack_bottom;