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-rw-r--r--src/runtime/testdata/testprog/crashdump.go47
1 files changed, 47 insertions, 0 deletions
diff --git a/src/runtime/testdata/testprog/crashdump.go b/src/runtime/testdata/testprog/crashdump.go
new file mode 100644
index 0000000..bced397
--- /dev/null
+++ b/src/runtime/testdata/testprog/crashdump.go
@@ -0,0 +1,47 @@
+// Copyright 2021 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.
+
+package main
+
+import (
+ "fmt"
+ "os"
+ "runtime"
+)
+
+func init() {
+ register("CrashDumpsAllThreads", CrashDumpsAllThreads)
+}
+
+func CrashDumpsAllThreads() {
+ const count = 4
+ runtime.GOMAXPROCS(count + 1)
+
+ chans := make([]chan bool, count)
+ for i := range chans {
+ chans[i] = make(chan bool)
+ go crashDumpsAllThreadsLoop(i, chans[i])
+ }
+
+ // Wait for all the goroutines to start executing.
+ for _, c := range chans {
+ <-c
+ }
+
+ // Tell our parent that all the goroutines are executing.
+ if _, err := os.NewFile(3, "pipe").WriteString("x"); err != nil {
+ fmt.Fprintf(os.Stderr, "write to pipe failed: %v\n", err)
+ os.Exit(2)
+ }
+
+ select {}
+}
+
+func crashDumpsAllThreadsLoop(i int, c chan bool) {
+ close(c)
+ for {
+ for j := 0; j < 0x7fffffff; j++ {
+ }
+ }
+}