diff options
Diffstat (limited to 'src/runtime/chan.go')
| -rw-r--r-- | src/runtime/chan.go | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/runtime/chan.go b/src/runtime/chan.go index a4ee51ca39..5cf0b86f58 100644 --- a/src/runtime/chan.go +++ b/src/runtime/chan.go @@ -232,6 +232,11 @@ func chansend(c *hchan, ep unsafe.Pointer, block bool, callerpc uintptr) bool { gp.param = nil c.sendq.enqueue(mysg) goparkunlock(&c.lock, waitReasonChanSend, traceEvGoBlockSend, 3) + // Ensure the value being sent is kept alive until the + // receiver copies it out. The sudog has a pointer to the + // stack object, but sudogs aren't considered as roots of the + // stack tracer. + KeepAlive(ep) // someone woke us up. if mysg != gp.waiting { |