From: David Crawshaw <crawshaw@golang.org>
Date: Tue, 24 Feb 2015 16:11:56 +0000 (-0500)
Subject: runtime: fallback to 128M address space on 32bit
X-Git-Tag: go1.5beta1~1875
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=85d09574fd2ed789eb5550a04eae1d261aaf4d17;p=gostls13.git

runtime: fallback to 128M address space on 32bit

Available darwin/arm devices sporadically have trouble mapping 256M.

I would really appreciate it if anyone could check my working on
this, and make sure sure there aren't obviously bad consequences I
haven't considered.

Change-Id: Id1a8edae104d974fcf5f9333274f958625467f79
Reviewed-on: https://go-review.googlesource.com/5752
Reviewed-by: Keith Randall <khr@golang.org>
---

diff --git a/src/runtime/malloc.go b/src/runtime/malloc.go
index fac5ca49ce..6a2c85aa9f 100644
--- a/src/runtime/malloc.go
+++ b/src/runtime/malloc.go
@@ -292,6 +292,7 @@ func mallocinit() {
 		arenaSizes := []uintptr{
 			512 << 20,
 			256 << 20,
+			128 << 20,
 		}
 
 		for _, arenaSize := range arenaSizes {