runtime: add Gosched to TestSelectStackAdjust loop
Give the runtime more of a chance to do other work in a tight loop.
Fixes #34693
Change-Id: I8df6173d2c93ecaccecf4520a6913b495787df78
Reviewed-on: https://go-review.googlesource.com/c/go/+/210217
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
diff --git a/src/runtime/chan_test.go b/src/runtime/chan_test.go
index d4752dd..039a086 100644
--- a/src/runtime/chan_test.go
+++ b/src/runtime/chan_test.go
@@ -719,6 +719,7 @@
if after.NumGC-before.NumGC >= 2 {
goto done
}
+ runtime.Gosched()
}
t.Fatal("failed to trigger concurrent GC")
done:
