1 #!/usr/sbin/dtrace -Cs 2 3 /* 4 * CDDL HEADER START 5 * 6 * The contents of this file are subject to the terms of the 7 * Common Development and Distribution License (the "License"). 8 * You may not use this file except in compliance with the License. 9 * 10 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 11 * or http://www.opensolaris.org/os/licensing. 12 * See the License for the specific language governing permissions 13 * and limitations under the License. 14 * 15 * When distributing Covered Code, include this CDDL HEADER in each 16 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 17 * If applicable, add the following below this CDDL HEADER, with the 18 * fields enclosed by brackets "[]" replaced with your own identifying 19 * information: Portions Copyright [yyyy] [name of copyright owner] 20 * 21 * CDDL HEADER END 22 */ 23 24 /* 25 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 26 * Use is subject to license terms. 27 */ 28 29 #pragma ident "%Z%%M% %I% %E% SMI" 30 31 /* 32 * We set our buffer size absurdly low to prevent a flood of errors that we 33 * don't care about. 34 */ 35 #pragma D option bufsize=16 36 #pragma D option bufpolicy=ring 37 38 fbt::: 39 { 40 n++; 41 #ifdef __sparc 42 trace(*(int *)0x8000000000000000 ^ rand()); 43 #else 44 trace(*(int *)(`kernelbase - 1)); 45 #endif 46 } 47 48 dtrace:::ERROR 49 { 50 err++; 51 } 52 53 tick-1sec 54 /sec++ == 10/ 55 { 56 exit(2); 57 } 58 59 END 60 /n == 0 || err == 0/ 61 { 62 exit(1); 63 } 64 65 END 66 /n != 0 && err != 0/ 67 { 68 exit(0); 69 } 70