From: Russ Cox <rsc@golang.org>
Date: Thu, 28 Aug 2014 15:45:30 +0000 (-0400)
Subject: runtime: fix build
X-Git-Tag: go1.4beta1~659
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=f02232072312d6cb7921ad89256894c4cbd0b63c;p=gostls13.git

runtime: fix build

'range hash' makes a copy of the hash array in the stack, creating
a very large stack frame. It's just the right amount that it
uses most but not all of the total stack size. If you have a lot
of environment variables, like the builders, then this is too
much and the g0 stack runs out of space.

TBR=bradfitz
CC=golang-codereviews
https://golang.org/cl/132350043
---

diff --git a/src/pkg/runtime/iface.go b/src/pkg/runtime/iface.go
index 3180ea4524..57882fb704 100644
--- a/src/pkg/runtime/iface.go
+++ b/src/pkg/runtime/iface.go
@@ -427,7 +427,7 @@ func efacethash(e interface{}) uint32 {
 }
 
 func iterate_itabs(fn func(*itab)) {
-	for _, h := range hash {
+	for _, h := range &hash {
 		for ; h != nil; h = h.link {
 			fn(h)
 		}