From: Chaoqun Han <hanssccv@gmail.com>
Date: Thu, 25 Nov 2021 13:16:28 +0000 (+0800)
Subject: runtime: add invalidptr=0 for TestGcZombieReporting
X-Git-Tag: go1.18beta1~143
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=5f63f168daa9644bcc723077e9e2e1796639f6bb;p=gostls13.git

runtime: add invalidptr=0 for TestGcZombieReporting

pointers in zombies slice may cross-span, add invalidptr=0 for avoiding the badPointer check

Fixes #49613

Change-Id: Ifb1931922170e87e799e2e6081dc85dab3890205
Reviewed-on: https://go-review.googlesource.com/c/go/+/367044
Trust: Emmanuel Odeke <emmanuel@orijtech.com>
Run-TryBot: Emmanuel Odeke <emmanuel@orijtech.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Emmanuel Odeke <emmanuel@orijtech.com>
---

diff --git a/src/runtime/gc_test.go b/src/runtime/gc_test.go
index 7b979afd55..d81cb3a3d5 100644
--- a/src/runtime/gc_test.go
+++ b/src/runtime/gc_test.go
@@ -196,7 +196,10 @@ func TestPeriodicGC(t *testing.T) {
 
 func TestGcZombieReporting(t *testing.T) {
 	// This test is somewhat sensitive to how the allocator works.
-	got := runTestProg(t, "testprog", "GCZombie")
+	// Pointers in zombies slice may cross-span, thus we
+	// add invalidptr=0 for avoiding the badPointer check.
+	// See issue https://golang.org/issues/49613/
+	got := runTestProg(t, "testprog", "GCZombie", "GODEBUG=invalidptr=0")
 	want := "found pointer to free object"
 	if !strings.Contains(got, want) {
 		t.Fatalf("expected %q in output, but got %q", want, got)