From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 91109 invoked by alias); 18 Aug 2016 15:16:31 -0000 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 Received: (qmail 91099 invoked by uid 89); 18 Aug 2016 15:16:30 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-2.4 required=5.0 tests=BAYES_00,RP_MATCHES_RCVD,SPF_HELO_PASS autolearn=ham version=3.3.2 spammy=UD:examples, meta, H*MI:sk:c2ba7d9, H*i:sk:c2ba7d9 X-HELO: mx1.redhat.com Received: from mx1.redhat.com (HELO mx1.redhat.com) (209.132.183.28) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Thu, 18 Aug 2016 15:16:29 +0000 Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 9B3C9C05AA4C; Thu, 18 Aug 2016 15:16:28 +0000 (UTC) Received: from [10.13.129.38] (dhcp129-38.rdu.redhat.com [10.13.129.38]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id u7IFGRBb022103; Thu, 18 Aug 2016 11:16:27 -0400 Subject: Re: exercising current aarch64 kprobe support with systemtap To: David Smith , Pratyush Anand References: <0a594132-796b-779d-b473-a06c0f3e8ae8@redhat.com> <20160627141840.GB8139@dhcppc9> <577EA7EE.2070607@linaro.org> <20160803131302.GC18785@localhost.localdomain> <2947a749-a518-d560-f768-60cc2f2c691e@redhat.com> <20160804044230.GB22191@localhost.localdomain> <20160804143549.GF22191@localhost.localdomain> <06cf3384-f909-dce5-b223-c25eb3ee49a9@redhat.com> Cc: David Long , systemtap@sourceware.org, Mark Brown , Jeremy Linton , "Frank Ch. Eigler" From: William Cohen Message-ID: <666eed3a-b847-b2d5-fbb3-8bb860e30771@redhat.com> Date: Thu, 18 Aug 2016 15:16:00 -0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.2.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-IsSubscribed: yes X-SW-Source: 2016-q3/txt/msg00175.txt.bz2 On 08/18/2016 11:06 AM, David Smith wrote: ... > OK, here's the status of the [nd_]syscall test failures. There were 2 > failures caused by a test case being too specific when looking for > syscall return value. There were fixed by commit 9c004b0: > > FAIL: 64-bit getgroups syscall > FAIL: 64-bit setgroups syscall > > There are 4 failures caused by the atomic region kprobes registration bug: > > FAIL: 64-bit sched syscall > FAIL: 64-bit sched_setaffinity syscall > FAIL: 64-bit sched_setscheduler syscall > FAIL: 64-bit set_tid_address syscall > > I verified all these failures by trying to use perf to put a probe on > the same functions: > > ==== > # perf probe --add=sys_set_tid_address > Failed to write event: Invalid argument > Error: Failed to add events. > ==== > > I'm not seeing any issue with fork in the testsuite results, but perhaps > I've missed something. What error are you referring to? > Sorry, I should have mentioned where I saw it. The fork issues weren't in the syscall tests. It was for procmod_wather.stp. Below is the part of systemtap.log that shows the problem: meta taglines 'test_check: stap -p4 procmod_watcher.stp' tag 'test_check' value 'stap -p4 procmod_watcher.stp' attempting command stap -p4 procmod_watcher.stp OUT semantic error: while resolving probe point: identifier 'nd_syscall' at procmod_watcher.stp:47:7 source: probe nd_syscall.fork.return { ^ semantic error: no match Pass 2: analysis failed. [man error::pass2] child process exited abnormally RC 1 FAIL: systemtap.examples/process/procmod_watcher build meta taglines 'test_installcheck: stap procmod_watcher.stp -T 1' tag 'test_installcheck' value 'stap procmod_watcher.stp -T 1' UNTESTED: systemtap.examples/process/procmod_watcher run -Will