From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752482AbeERK3X (ORCPT ); Fri, 18 May 2018 06:29:23 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:44772 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752389AbeERK3W (ORCPT ); Fri, 18 May 2018 06:29:22 -0400 Subject: Re: [PATCH] perf tests: Fix regex for record+probe_libc_inet_pton.sh To: Thomas-Mich Richter , acme@kernel.org, jolsa@redhat.com Cc: linux-kernel@vger.kernel.org, ravi.bangoria@linux.ibm.com, naveen.n.rao@linux.vnet.ibm.com, Hendrik Brueckner References: <20180518072417.1498-1-sandipan@linux.vnet.ibm.com> From: Sandipan Das Date: Fri, 18 May 2018 15:59:13 +0530 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.5.2 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 x-cbid: 18051810-0008-0000-0000-000004F7DF04 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18051810-0009-0000-0000-00001E8C5A16 Message-Id: <764aa7ae-dcbe-6311-19fd-3d31b18f1645@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2018-05-18_05:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1709140000 definitions=main-1805180116 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Thomas, On 05/18/2018 03:51 PM, Thomas-Mich Richter wrote: [...] > > This patch fails on s390. I used 4.17.0rc5 + fedora 27 and I get this output: > > > [root@p23lp27 perf]# ./perf test 59 > 59: probe libc's inet_pton & backtrace it with ping : Ok > [root@p23lp27 linux]# cd ~/linux; patch -p1 < ../inet_pton1 > (Stripping trailing CRs from patch; use --binary to disable.) > patching file tools/perf/tests/shell/record+probe_libc_inet_pton.sh > [root@p23lp27 linux]# cd -; > [root@p23lp27 perf]# ./perf test 59 > 59: probe libc's inet_pton & backtrace it with ping : FAILED! > [root@p23lp27 perf]# > > Debugging revealed this line as cause of failure: > > > FAIL: expected backtrace entry 2 "gaih_inet.*\+0x[[:xdigit:]]+[[:space:]]\(/usr/lib64/libc-2.26.so|inlined\)$" got "fdcb1 gaih_inet.constprop.7 (/usr/lib64/libc-2.26.so)" > > Here is the output of the trace file > > [root@p23lp27 perf]# perf script > ping 87291 [001] 96936.231618: probe_libc:inet_pton: (3ff96342378) > 142378 __inet_pton (inlined) > fdcb1 gaih_inet.constprop.7 (/usr/lib64/libc-2.26.so) > 100189 __GI_getaddrinfo (inlined) > 398d main (/usr/bin/ping) > 2303d __libc_start_main (/usr/lib64/libc-2.26.so) > 457b [unknown] (/usr/bin/ping) > > [root@p23lp27 perf]# > > Hope this helps > Can you please apply these two patches as well and then re-test? [1] https://lkml.org/lkml/2018/5/17/112 [2] https://lkml.org/lkml/2018/5/17/113 - Sandipan