| // Copyright 2013 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| // Only works on systems with syscall.Close. |
| // We need a fast system call to provoke the race, |
| // and Close(-1) is nearly universally fast. |
| //go:build aix || darwin || dragonfly || freebsd || hurd || linux || netbsd || openbsd || plan9 |
| func TestGoroutineProfile(t *testing.T) { |
| // GoroutineProfile used to use the wrong starting sp for |
| // goroutines coming out of system calls, causing possible |
| defer runtime.GOMAXPROCS(runtime.GOMAXPROCS(100)) |
| defer atomic.StoreUint32(&stop, 1) // in case of panic |
| for atomic.LoadUint32(&stop) == 0 { |
| stk := make([]runtime.StackRecord, 128) |
| for n := 0; n < max; n++ { |
| _, ok := runtime.GoroutineProfile(stk) |
| t.Fatalf("GoroutineProfile failed") |
| // If the program didn't crash, we passed. |
| atomic.StoreUint32(&stop, 1) |