qbit/go
1
0
Fork 0
mirror of https://github.com/golang/go synced 2024-11-12 04:30:22 -07:00
Code Releases Activity

runtime: fix scheduling race

Browse Source 
Affects programs using cgo or runtime.LockOSThread.

Fixes #2100.

R=rsc, dvyukov
CC=golang-dev
https://golang.org/cl/4810059
This commit is contained in:
Hector Chu 2011-07-29 17:39:02 -04:00 committed by Russ Cox
parent 31442a6737
commit 9bc58accce
1 changed files with 9 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
src/pkg/runtime/proc.c
View File

@ -486,8 +486,16 @@ nextgandunlock(void)
// We can only run one g, and it's not available.
// Make sure some other cpu is running to handle
// the ordinary run queue.
if(runtime·sched.gwait != 0)
if(runtime·sched.gwait != 0) {
matchmg();
// m->lockedg might have been on the queue.
if(m->nextg != nil) {
gp = m->nextg;
m->nextg = nil;
schedunlock();
return gp;
}
}
} else {
// Look for work on global queue.
while(haveg() && canaddmcpu()) {