$OpenBSD: patch-js_src_jit_ProcessExecutableMemory_h,v 1.2 2018/06/27 05:05:20 landry Exp $

https://bugzilla.mozilla.org/show_bug.cgi?id=1347139

Index: js/src/jit/ProcessExecutableMemory.h
--- js/src/jit/ProcessExecutableMemory.h.orig
+++ js/src/jit/ProcessExecutableMemory.h
@@ -15,8 +15,9 @@ namespace js {
 namespace jit {
 
 // Limit on the number of bytes of executable memory to prevent JIT spraying
-// attacks.
-#if JS_BITS_PER_WORD == 32
+// attacks. Default datasize is 768Mb on OpenBSD, keep MaxCodeBytesPerProcess
+// low there otherwise the js engine hits ulimit quickly.
+#if JS_BITS_PER_WORD == 32 || defined(__OpenBSD__)
 static const size_t MaxCodeBytesPerProcess = 140 * 1024 * 1024;
 #else
 static const size_t MaxCodeBytesPerProcess = 1 * 1024 * 1024 * 1024;
