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| author | Russ Cox <rsc@golang.org> | 2010-01-12 10:03:02 -0800 |
|---|---|---|
| committer | Russ Cox <rsc@golang.org> | 2010-01-12 10:03:02 -0800 |
| commit | 711088106e74e909f78a8139bd46501f39d13e7d (patch) | |
| tree | ccb9b550b77db81d9e148342b029c8f003ae111b | |
| parent | 9d4d7d8f991ad3b27f223a2a987f2517971cd868 (diff) | |
| download | go-711088106e74e909f78a8139bd46501f39d13e7d.tar.gz go-711088106e74e909f78a8139bd46501f39d13e7d.zip | |
runtime: fix bug in preemption checks; was causing "lock count" panics
R=r
CC=golang-dev
https://golang.org/cl/186078
| -rw-r--r-- | src/pkg/runtime/malloc.cgo | 2 | ||||
| -rw-r--r-- | src/pkg/runtime/proc.c | 2 |
2 files changed, 3 insertions, 1 deletions
diff --git a/src/pkg/runtime/malloc.cgo b/src/pkg/runtime/malloc.cgo index 948257973e..a85c39d83d 100644 --- a/src/pkg/runtime/malloc.cgo +++ b/src/pkg/runtime/malloc.cgo @@ -27,7 +27,7 @@ mallocgc(uintptr size, uint32 refflag, int32 dogc) void *v; uint32 *ref; - if(gcwaiting && g != m->g0) + if(gcwaiting && g != m->g0 && m->locks == 0) gosched(); if(m->mallocing) throw("malloc/free - deadlock"); diff --git a/src/pkg/runtime/proc.c b/src/pkg/runtime/proc.c index 6324b4be4c..99fa26ad0b 100644 --- a/src/pkg/runtime/proc.c +++ b/src/pkg/runtime/proc.c @@ -523,6 +523,8 @@ scheduler(void) void gosched(void) { + if(m->locks != 0) + throw("gosched holding locks"); if(g == m->g0) throw("gosched of g0"); if(gosave(&g->sched) == 0) |