[PATCH v2] test: Skip tst.depth.sh

[eugene.loh@oracle.com]

From: Eugene Loh <eugene.loh@oracle.com>

The test asks for very many pid probes.  E.g.,

        pid$target:::entry,
        pid$target:::return,
        pid$target:a.out::,

If it is successful, this can wreak havoc on some systems, in some cases
leading to 1-2 dozen subsequent tests failing due to cascading problems:
poor test clean up, triggers left running, persistent loads, pid=0 not
running, tests timing out, and so on.  These problems require
investigation.

For now, skip the precipitating test.

See
https://oss.oracle.com/pipermail/dtrace-devel/2025-November/006916.html

Incidentally, there are similar issues for

* test/unittest/pid/err.D_PROC_CREATEFAIL.many.d
  but this test is already marked SKIP, apparently for the same reason.
  See commit d9423bd79
  ("err.D_PROC_CREATEFAIL.many.d causes failures in subsequent tests").
  The current patch simply seeks to apply the same SKIP to another test.

* test/demo/user/userfunc.d
  but this test is marked XFAIL since it needs a trigger

All three tests should be resolved when the underlying problem is
tackled.

Orabug: 38642080
Signed-off-by: Eugene Loh <eugene.loh@oracle.com>
---
 test/unittest/ustack/tst.depth.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/test/unittest/ustack/tst.depth.sh b/test/unittest/ustack/tst.depth.sh
index dec16a3aa..4a67291de 100755
--- a/test/unittest/ustack/tst.depth.sh
+++ b/test/unittest/ustack/tst.depth.sh
@@ -1,10 +1,10 @@
 #!/bin/bash
 #
 # Oracle Linux DTrace.
-# Copyright (c) 2006, 2020, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2006, 2025, Oracle and/or its affiliates. All rights reserved.
 # Licensed under the Universal Permissive License v 1.0 as shown at
 # http://oss.oracle.com/licenses/upl.
-# @@xfail: dtv2
+# @@skip
 
 if [ $# != 1 ]; then
 	echo expected one argument: '<'dtrace-path'>'
-- 
2.47.3