From d6fa581a4c487cd55ca62b853a36842e2fd381a3 Mon Sep 17 00:00:00 2001
From: Matthew Flatt <mflatt@racket-lang.org>
Date: Fri, 3 Jul 2015 12:41:37 -0600
Subject: [PATCH] increase signal-handling stack size

On 64-bit Linux platforms other than x86_64 (e.g., AArch64), SIGSTKSZ
isn't big enough. Use a stack 10 times as large.
---
 racket/src/racket/gc2/sighand.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/racket/src/racket/gc2/sighand.c b/racket/src/racket/gc2/sighand.c
index 6c46acda45..9f5ac3cbcf 100644
--- a/racket/src/racket/gc2/sighand.c
+++ b/racket/src/racket/gc2/sighand.c
@@ -219,9 +219,10 @@ static void initialize_signal_handler(GCTYPE *gc)
 # ifdef NEED_SIGSTACK
   {
     stack_t ss;
+    uintptr_t sz = 10*SIGSTKSZ;
     
-    ss.ss_sp = malloc(SIGSTKSZ);
-    ss.ss_size = SIGSTKSZ;
+    ss.ss_sp = malloc(sz);
+    ss.ss_size = sz;
     ss.ss_flags = 0;
     
     sigaltstack(&ss, NULL);