diff options
| author | Dmitriy Vyukov <dvyukov@google.com> | 2014-03-13 17:41:08 +0400 |
|---|---|---|
| committer | Dmitriy Vyukov <dvyukov@google.com> | 2014-03-13 17:41:08 +0400 |
| commit | e678ab4e375659fea86b17557c23673033cf897c (patch) | |
| tree | 4572fb56152de8e44ae6482a9a45cd2743220ecd /src/pkg/runtime/stack.c | |
| parent | 156962872575382697a0487030cd5777312d6d0c (diff) | |
| download | go-e678ab4e375659fea86b17557c23673033cf897c.tar.xz | |
runtime: detect stack split after fork
This check would allowed to easily prevent issue 7511.
Update #7511
LGTM=rsc
R=rsc, aram
CC=golang-codereviews
https://golang.org/cl/75260043
Diffstat (limited to 'src/pkg/runtime/stack.c')
| -rw-r--r-- | src/pkg/runtime/stack.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/pkg/runtime/stack.c b/src/pkg/runtime/stack.c index bb7a32f8ae..d580665e2b 100644 --- a/src/pkg/runtime/stack.c +++ b/src/pkg/runtime/stack.c @@ -583,6 +583,8 @@ runtime·newstack(void) Gobuf label; bool newstackcall; + if(m->forkstackguard) + runtime·throw("split stack after fork"); if(m->morebuf.g != m->curg) { runtime·printf("runtime: newstack called from g=%p\n" "\tm=%p m->curg=%p m->g0=%p m->gsignal=%p\n", |