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 /* 30 * We set our buffer size absurdly low to prevent a flood of errors that we 31 * don't care about. 32 */ 33 #pragma D option bufsize=16 34 #pragma D option bufpolicy=ring 35 36 fbt::: 37 { 38 n++; 39 #ifdef __sparc 40 trace(*(int *)0x8000000000000000 ^ rand()); 41 #else 42 trace(*(int *)(`kernelbase - 1)); 43 #endif 44 } 45 46 dtrace:::ERROR 47 { 48 err++; 49 } 50 51 tick-1sec 52 /sec++ == 10/ 53 { 54 exit(2); 55 } 56 57 END 58 /n == 0 || err == 0/ 59 { 60 exit(1); 61 } 62 63 END 64 /n != 0 && err != 0/ 65 { 66 exit(0); 67 } 68