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runtime: if the test program hangs, try to get a stack trace

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This is an attempt to get more information for #14809, which seems to
occur rarely.

Updates #14809.

Change-Id: Idbeb136ceb57993644e03266622eb699d2685d02
Reviewed-on: https://go-review.googlesource.com/24110
Reviewed-by: Mikio Hara <mikioh.mikioh@gmail.com>
Reviewed-by: Austin Clements <austin@google.com>
This commit is contained in:
Ian Lance Taylor 2016-06-14 14:38:22 -07:00
parent 48cc3c4b58
commit 26d6dc6bf8
3 changed files with 59 additions and 2 deletions
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4
src/runtime/crash_unix_test.go
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@ -19,6 +19,10 @@ import (
"testing"
)
// sigquit is the signal to send to kill a hanging testdata program.
// Send SIGQUIT to get a stack trace.
var sigquit = syscall.SIGQUIT
func TestCrashDumpsAllThreads(t *testing.T) {
switch runtime.GOOS {
case "darwin", "dragonfly", "freebsd", "linux", "netbsd", "openbsd", "solaris":