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runtime: get more info for TestCgoSignalDeadlock failures

Updates #18598

Change-Id: I13c60124714cf9d1537efa0a7dd1e6a0fed9ae5b
Reviewed-on: https://go-review.googlesource.com/46723
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
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ianlancetaylor committed Jun 26, 2017
1 parent 09899d9 commit 93870aeee980aadf6f67b778734f25419de55a7d
Showing with 6 additions and 2 deletions.
  1. +6 −2 src/runtime/testdata/testprogcgo/cgo.go
@@ -45,10 +45,13 @@ func CgoSignalDeadlock() {
}()
var s *string
*s = ""
fmt.Printf("continued after expected panic\n")
}()
}
}()
time.Sleep(time.Millisecond)
start := time.Now()
var times []time.Duration
for i := 0; i < 64; i++ {
go func() {
runtime.LockOSThread()
@@ -62,16 +65,17 @@ func CgoSignalDeadlock() {
ping <- false
select {
case <-ping:
times = append(times, time.Since(start))
case <-time.After(time.Second):
fmt.Printf("HANG\n")
fmt.Printf("HANG 1 %v\n", times)
return
}
}
ping <- true
select {
case <-ping:
case <-time.After(time.Second):
fmt.Printf("HANG\n")
fmt.Printf("HANG 2 %v\n", times)
return
}
fmt.Printf("OK\n")

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