diff options
| author | Russ Cox <rsc@golang.org> | 2012-03-27 12:22:19 -0400 |
|---|---|---|
| committer | Russ Cox <rsc@golang.org> | 2012-03-27 12:22:19 -0400 |
| commit | b61b7d5e34573d5b303e3a3f223bdb6023847fb7 (patch) | |
| tree | 01f5f43cd32d4ac2100761e26a4f4693a9b23f87 /test | |
| parent | ba4945a50c729cafd89ee08016a3a61ae07d1164 (diff) | |
| download | go-b61b7d5e34573d5b303e3a3f223bdb6023847fb7.tar.gz | |
runtime: work around false negative in deadlock detection
Not a complete fix for issue 3342, but fixes the trivial case.
There may still be a race in the instants before and after
a scavenger-induced garbage collection.
Intended to be "obviously safe": a call to runtime?gosched
before main.main is no different than a call to runtime.Gosched
at the beginning of main.main, and it is (or had better be)
safe to call runtime.Gosched at any point during main.
Update issue 3342.
R=iant
CC=golang-dev
http://codereview.appspot.com/5919052
Diffstat (limited to 'test')
| -rw-r--r-- | test/fixedbugs/bug429.go | 13 | ||||
| -rw-r--r-- | test/golden.out | 3 |
2 files changed, 16 insertions, 0 deletions
diff --git a/test/fixedbugs/bug429.go b/test/fixedbugs/bug429.go new file mode 100644 index 000000000..c1bd1d4bb --- /dev/null +++ b/test/fixedbugs/bug429.go @@ -0,0 +1,13 @@ +// $G $D/$F.go && $L $F.$A && ! ./$A.out || echo BUG: bug429 + +// Copyright 2012 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Should print deadlock message, not hang. + +package main + +func main() { + select {} +} diff --git a/test/golden.out b/test/golden.out index 764f56196..376af8e53 100644 --- a/test/golden.out +++ b/test/golden.out @@ -15,6 +15,9 @@ == fixedbugs/ +=========== fixedbugs/bug429.go +throw: all goroutines are asleep - deadlock! + == bugs/ =========== bugs/bug395.go |