Keith Randall 97b84fc4c8 [release-branch.go1.4] runtime: fix deadlock in runtime.Stack ...

It shouldn't semacquire() inside an acquirem(), the runtime
thinks that means deadlock.  It actually isn't a deadlock, but it
looks like it because acquirem() does m.locks++.

Candidate for inclusion in 1.4.1.  runtime.Stack with all=true
is pretty unuseable in GOMAXPROCS>1 environment.

fixes #9321

Change-Id: Iac6b664217d24763b9878c20e49229a1ecffc805
Reviewed-on: https://go-review.googlesource.com/1600
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
(cherry picked from commit 50bc3d5bbc)
Reviewed-on: https://go-review.googlesource.com/2807
Reviewed-by: Andrew Gerrand <adg@golang.org>

2015-01-14 06:16:34 +00:00

541 B

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