From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 25810 invoked by alias); 28 Dec 2009 02:24:53 -0000 Received: (qmail 25803 invoked by uid 22791); 28 Dec 2009 02:24:52 -0000 X-SWARE-Spam-Status: No, hits=0.2 required=5.0 tests=AWL,BAYES_20,SARE_BAYES_5x8,SARE_BAYES_6x8,SARE_BAYES_7x8,UNPARSEABLE_RELAY X-Spam-Check-By: sourceware.org Received: from rcsinet12.oracle.com (HELO rcsinet12.oracle.com) (148.87.113.124) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Mon, 28 Dec 2009 02:24:47 +0000 Received: from rcsinet15.oracle.com (rcsinet15.oracle.com [148.87.113.117]) by rcsinet12.oracle.com (Switch-3.4.2/Switch-3.4.2) with ESMTP id nBS2OhYl016390 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Mon, 28 Dec 2009 02:24:44 GMT Received: from acsmt355.oracle.com (acsmt355.oracle.com [141.146.40.155]) by rcsinet15.oracle.com (Switch-3.4.2/Switch-3.4.1) with ESMTP id nBS1hiQa023877 for ; Mon, 28 Dec 2009 02:24:36 GMT Received: from abhmt010.oracle.com by acsmt356.oracle.com with ESMTP id 1243088591261966967; Sun, 27 Dec 2009 18:22:47 -0800 Received: from dhcp-beijing-cdc-10-182-121-213.cn.oracle.com (/10.182.121.213) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Sun, 27 Dec 2009 18:22:46 -0800 Message-ID: <4B3815B5.7080708@oracle.com> Date: Mon, 28 Dec 2009 02:24:00 -0000 From: Wenji Huang Reply-To: wenji.huang@oracle.com User-Agent: Thunderbird 2.0.0.12 (X11/20080213) MIME-Version: 1.0 To: SystemTAP Subject: Oops when running context.exp on 2.6.33-rc2 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-IsSubscribed: yes Mailing-List: contact systemtap-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Post: List-Help: , Sender: systemtap-owner@sourceware.org X-SW-Source: 2009-q4/txt/msg01021.txt.bz2 Hi, To test latest stap, I got serious error when running context.exp on 2.6.33-rc2. [234928.288999] BUG: unable to handle kernel NULL pointer dereference at (null) [234928.288999] IP: [<(null)>] (null) [234928.288999] *pde = 00000000 [234928.288999] Oops: 0000 [#1] SMP [234928.288999] last sysfs file: /sys/module/systemtap_test_module2/sections/__mcount_loc [234928.288999] Modules linked in: stap_0f82dfbb035551305fcda9ca5dc4a0f4_2801 systemtap_test_module1 systemtap_test_module2 stap_59e08229c97e72f4b69b3aa3c5a4f780_464 stap_1fcfdb29e95e34c6357c7010e36406cf_464 [last unloaded: stap_7eb34d035ef198d5cb33e154c7bd0677_2485] [234928.288999] [234928.288999] Pid: 14605, comm: echo Not tainted 2.6.33-rc2 #2 440BX Desktop Reference Platform/VMware Virtual Platform [234928.288999] EIP: 0060:[<00000000>] EFLAGS: 00210086 CPU: 1 [234928.288999] EIP is at 0x0 [234928.288999] EAX: cb512000 EBX: cb512000 ECX: cb513d54 EDX: cb513f44 [234928.288999] ESI: d087d84c EDI: cb513d54 EBP: cb513d54 ESP: cb513d2c [234928.288999] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 [234928.288999] Process echo (pid: 14605, ti=cb512000 task=cdf37ab0 task.ti=cb512000) [234928.288999] Stack: [234928.288999] c020439d d087d84c cb513db8 00000000 cb513d44 cb513dc4 00000000 00000000 [234928.288999] <0> 00000000 cb513efc cb513ddc d087c97a 00000000 d087d84c cb513db8 00000001 [234928.288999] <0> b772e000 fffffff2 00000030 00000002 fffffffb cb513f4c 000004d2 0000007b [234928.288999] Call Trace: [234928.288999] [] ? dump_trace+0x7e/0xad [234928.288999] [] ? _stp_stack_print+0x18e/0x2ad [stap_0f82dfbb035551305fcda9ca5dc4a0f4_2801] [234928.288999] [] ? stm_write_cmd+0x46/0xf7 [systemtap_test_module1] [234928.288999] [] ? function_print_backtrace+0x40/0x68 [stap_0f82dfbb035551305fcda9ca5dc4a0f4_2801] [234928.288999] [] ? function_print_all_trace_info+0xbf/0x2ff [stap_0f82dfbb035551305fcda9ca5dc4a0f4_2801] [234928.289999] [] ? strlcpy+0x33/0x43 [234928.289999] [] ? probe_1917+0x45/0xb8 [stap_0f82dfbb035551305fcda9ca5dc4a0f4_2801] [234928.289999] [] ? yyy_func2+0x1/0x10 [systemtap_test_module2] [234928.289999] [] ? enter_kprobe_probe+0x153/0x2ec [stap_0f82dfbb035551305fcda9ca5dc4a0f4_2801] [234928.289999] [] ? is_IF_modifier+0x8/0x28 [234928.289999] [] ? kprobe_exceptions_notify+0x139/0x357 [234928.289999] [] ? notifier_call_chain+0x30/0x4f [234928.289999] [] ? __atomic_notifier_call_chain+0x16/0x18 [234928.289999] [] ? atomic_notifier_call_chain+0x11/0x13 [234928.289999] [] ? notify_die+0x2d/0x2f [234928.289999] [] ? do_int3+0x24/0x5e [234928.289999] [] ? int3+0x2e/0x34 [234928.289999] [] ? yyy_func2+0x0/0x10 [systemtap_test_module2] [234928.289999] [] ? yyy_func1+0xd/0x10 [systemtap_test_module2] [234928.289999] [] ? stm_write_cmd+0x46/0xf7 [systemtap_test_module1] [234928.289999] [] ? stm_write_cmd+0x0/0xf7 [systemtap_test_module1] [234928.289999] [] ? proc_reg_write+0x5b/0x6f [234928.289999] [] ? vfs_write+0x87/0xe1 [234928.289999] [] ? proc_reg_write+0x0/0x6f [234928.289999] [] ? sys_write+0x40/0x62 [234928.289999] [] ? sysenter_do_call+0x12/0x27 [234928.289999] Code: Bad EIP value. [234928.289999] EIP: [<00000000>] 0x0 SS:ESP 0068:cb513d2c [234928.289999] CR2: 0000000000000000 [234928.289999] ---[ end trace fab8ca5171d1c08e ]---