5 # The contents of this file are subject to the terms of the
6 # Common Development and Distribution License (the "License").
7 # You may not use this file except in compliance with the License.
9 # You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 # or http://www.opensolaris.org/os/licensing.
11 # See the License for the specific language governing permissions
12 # and limitations under the License.
14 # When distributing Covered Code, include this CDDL HEADER in each
15 # file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 # If applicable, add the following below this CDDL HEADER, with the
17 # fields enclosed by brackets "[]" replaced with your own identifying
18 # information: Portions Copyright [yyyy] [name of copyright owner]
24 # Copyright 2007 Sun Microsystems, Inc. All rights reserved.
25 # Use is subject to license terms.
27 # ident "%Z%%M% %I% %E% SMI"
30 # This script verifies that user-land stacks can be walked safely
31 # when the trapstat(1M) utility is running. An arbitrary program, w(1),
32 # is started once a second to ensure stacks can be walked at all stages
33 # of the process lifecycle.
38 $dtrace -o $dtraceout -s /dev/stdin <<EOF
41 @[ustackdepth] = count();
50 while [ $cnt -lt 10 ]; do
58 echo expected one argument: '<'dtrace-path'>'
63 dtraceout=/tmp/dtrace.out.$$
68 # Sleep while the above script fires into life. To guard against dtrace dying
69 # and us sleeping forever we allow 15 secs for this to happen. This should be
70 # enough for even the slowest systems.
72 while [ ! -f $dtraceout ]; do
74 timeout=$(($timeout-1))
75 if [ $timeout -eq 0 ]; then
76 echo "dtrace failed to start. Exiting."