From: Ian Lance Taylor <iant@golang.org>
Date: Wed, 8 Sep 2021 23:21:33 +0000 (-0700)
Subject: internal/poll: report open fds when TestSplicePipePool fails
X-Git-Tag: go1.18beta1~1411
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=6edc57983a;p=gostls13.git

internal/poll: report open fds when TestSplicePipePool fails

For #48066

Change-Id: I1152a1c15756df35b71b27d3e7025d97da9e70b0
Reviewed-on: https://go-review.googlesource.com/c/go/+/348579
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Emmanuel Odeke <emmanuel@orijtech.com>
---

diff --git a/src/internal/poll/splice_linux_test.go b/src/internal/poll/splice_linux_test.go
index 280468c7e7..deac5c3759 100644
--- a/src/internal/poll/splice_linux_test.go
+++ b/src/internal/poll/splice_linux_test.go
@@ -67,6 +67,13 @@ func TestSplicePipePool(t *testing.T) {
 		}
 		select {
 		case <-expiredTime.C:
+			t.Logf("descriptors to check: %v", fds)
+			for _, fd := range fds {
+				_, _, errno := syscall.Syscall(unix.FcntlSyscall, uintptr(fd), syscall.F_GETPIPE_SZ, 0)
+				if errno == 0 {
+					t.Errorf("descriptor %d still open", fd)
+				}
+			}
 			t.Fatal("at least one pipe is still open")
 		default:
 		}