From: Dmitriy Vyukov <dvyukov@google.com>
Date: Thu, 21 Feb 2013 17:59:46 +0000 (+0400)
Subject: runtime: fix heap corruption
X-Git-Tag: go1.1rc2~922
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=94fab3cad33b7d5eb7422d319fd88b2db9896a75;p=gostls13.git

runtime: fix heap corruption

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/7397049
---

diff --git a/src/pkg/runtime/proc.c b/src/pkg/runtime/proc.c
index 5c36ddf745..9909182b6b 100644
--- a/src/pkg/runtime/proc.c
+++ b/src/pkg/runtime/proc.c
@@ -972,6 +972,12 @@ runtime·newextram(void)
 	mp->locked = LockInternal;
 	mp->lockedg = gp;
 	gp->lockedm = mp;
+	// put on allg for garbage collector
+	if(runtime·lastg == nil)
+		runtime·allg = gp;
+	else
+		runtime·lastg->alllink = gp;
+	runtime·lastg = gp;
 	schedunlock();
 
 	// Add m to the extra list.