os/signal: increase wait time for signal delivery time in testcase

This increases the time to wait from 1 to 2 seconds in the
TestAtomicStop testcase. When running with gccgo on ppc64
& ppc64le on a loaded systems these testcases can
intermittently fail with the current value.

Updates #29046

Change-Id: If420274dd65926d933a3024903b5c757c300bd60
Reviewed-on: https://go-review.googlesource.com/c/153826
Run-TryBot: Lynn Boger <laboger@linux.vnet.ibm.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

diff --git a/src/os/signal/signal_test.go b/src/os/signal/signal_test.go
index ecb05fd16c3e7e15508e43d170131c31fe7cd611..6ea59f4697f622a4cf0c2a1802fd450a103d4d93 100644 (file)
--- a/src/os/signal/signal_test.go
+++ b/src/os/signal/signal_test.go
@@ -432,12 +432,12 @@ func atomicStopTestProgram() {
 
                // At this point we should either die from SIGINT or
                // get a notification on cs. If neither happens, we
-               // dropped the signal. Give it a second to deliver,
-               // which is far far longer than it should require.
+               // dropped the signal. It is given 2 seconds to
+               // deliver, as needed for gccgo on some loaded test systems.
 
                select {
                case <-cs:
-               case <-time.After(1 * time.Second):
+               case <-time.After(2 * time.Second):
                        if !printed {
                                fmt.Print("lost signal on tries:")
                                printed = true