From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-20.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8F4DDC07E95 for ; Mon, 19 Jul 2021 16:36:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 785B76120A for ; Mon, 19 Jul 2021 16:36:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1349761AbhGSPyC (ORCPT ); Mon, 19 Jul 2021 11:54:02 -0400 Received: from mail.kernel.org ([198.145.29.99]:47916 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1350510AbhGSPvH (ORCPT ); Mon, 19 Jul 2021 11:51:07 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 2A9BA6120C; Mon, 19 Jul 2021 16:29:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1626712192; bh=Jjgvcw7VGv0GO8V2X1++bmwWsyFNXJB10ufQ5apiqfE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=rNFW2JbX5pNASk3F1vnxKN584u1uKunpzWk2Rs6aTDIImvoeybTAaaYVnD+K94nla KBR65fjWU/jO11j5CPdqWyly8/JN5K3W9VrwCZ+47/vrtVAg+xfj9B1nsi3GOJ5xsJ gA+q3QzSb0HHAg92PEwVEEDsatuO+A78Z9WZfmAw= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Namhyung Kim , Jiri Olsa , Arnaldo Carvalho de Melo , Andi Kleen , Ian Rogers , Peter Zijlstra , Sasha Levin Subject: [PATCH 5.12 285/292] perf report: Fix --task and --stat with pipe input Date: Mon, 19 Jul 2021 16:55:47 +0200 Message-Id: <20210719144952.287832094@linuxfoundation.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210719144942.514164272@linuxfoundation.org> References: <20210719144942.514164272@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Namhyung Kim [ Upstream commit 892ba7f18621a02af4428c58d97451f64685dba4 ] Current 'perf report' fails to process a pipe input when --task or --stat options are used. This is because they reset all the tool callbacks and fails to find a matching event for a sample. When pipe input is used, the event info is passed via ATTR records so it needs to handle that operation. Otherwise the following error occurs. Note, -14 (= -EFAULT) comes from evlist__parse_sample(): # perf record -a -o- sleep 1 | perf report -i- --stat Can't parse sample, err = -14 0x271044 [0x38]: failed to process type: 9 Error: failed to process sample # Committer testing: Before: $ perf record -o- sleep 1 | perf report -i- --stat Can't parse sample, err = -14 [ perf record: Woken up 1 times to write data ] 0x1350 [0x30]: failed to process type: 9 Error: failed to process sample [ perf record: Captured and wrote 0.000 MB - ] $ After: $ perf record -o- sleep 1 | perf report -i- --stat [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.000 MB - ] Aggregated stats: TOTAL events: 41 COMM events: 2 ( 4.9%) EXIT events: 1 ( 2.4%) SAMPLE events: 9 (22.0%) MMAP2 events: 4 ( 9.8%) ATTR events: 1 ( 2.4%) FINISHED_ROUND events: 1 ( 2.4%) THREAD_MAP events: 1 ( 2.4%) CPU_MAP events: 1 ( 2.4%) EVENT_UPDATE events: 1 ( 2.4%) TIME_CONV events: 1 ( 2.4%) FEATURE events: 19 (46.3%) cycles:uhH stats: SAMPLE events: 9 $ Fixes: a4a4d0a7a2b20f78 ("perf report: Add --stats option to display quick data statistics") Signed-off-by: Namhyung Kim Acked-by: Jiri Olsa Tested-by: Arnaldo Carvalho de Melo Cc: Andi Kleen Cc: Ian Rogers Cc: Peter Zijlstra Link: http://lore.kernel.org/lkml/20210630043058.1131295-1-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Sasha Levin --- tools/perf/builtin-report.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index 2a845d6cac09..71a31b8ac3f1 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -707,9 +707,14 @@ static void report__output_resort(struct report *rep) ui_progress__finish(); } +static int process_attr(struct perf_tool *tool __maybe_unused, + union perf_event *event, + struct evlist **pevlist); + static void stats_setup(struct report *rep) { memset(&rep->tool, 0, sizeof(rep->tool)); + rep->tool.attr = process_attr; rep->tool.no_warn = true; } @@ -729,6 +734,7 @@ static void tasks_setup(struct report *rep) rep->tool.mmap = perf_event__process_mmap; rep->tool.mmap2 = perf_event__process_mmap2; } + rep->tool.attr = process_attr; rep->tool.comm = perf_event__process_comm; rep->tool.exit = perf_event__process_exit; rep->tool.fork = perf_event__process_fork; -- 2.30.2