code review 111130045: runtime: zero dangling pointer

runtime: zero dangling pointer
I don't see how it can lead to bad things today.
But it's better to kill it before it does.

[dvyukov, 2014-07-14 11:44:12]

Hello golang-codereviews@googlegroups.com (cc: khr@golang.org, rsc@golang.org),

I'd like you to review this change to
https://dvyukov%40google.com@code.google.com/p/go/

[khr, 2014-07-14 23:29:55]

On 2014/07/14 11:44:12, dvyukov wrote:
> Hello mailto:golang-codereviews@googlegroups.com (cc: mailto:khr@golang.org,
mailto:rsc@golang.org),
> 
> I'd like you to review this change to
> https://dvyukov%40google.com@code.google.com/p/go/

LGTM.

[dvyukov, 2014-07-15 06:29:27]

*** Submitted as https://code.google.com/p/go/source/detail?r=4bcccdc31eeb ***

runtime: zero dangling pointer
I don't see how it can lead to bad things today.
But it's better to kill it before it does.

LGTM=khr
R=golang-codereviews, khr
CC=golang-codereviews, rsc
https://codereview.appspot.com/111130045

[gobot, 2014-07-15 06:51:02]

This CL appears to have broken the openbsd-386-rootbsd builder.
See http://build.golang.org/log/0279a931d27436e1b297fb3ef36b48f4f440272b