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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DDEFBC77B75 for ; Tue, 16 May 2023 18:19:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231722AbjEPSTV (ORCPT ); Tue, 16 May 2023 14:19:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33602 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231971AbjEPSTU (ORCPT ); Tue, 16 May 2023 14:19:20 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 00D88A26F; Tue, 16 May 2023 11:19:18 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 879DF635B4; Tue, 16 May 2023 18:19:18 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A7F90C433EF; Tue, 16 May 2023 18:19:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1684261157; bh=wRq8nQddeWhoPivNXCSKifiwZm67mGPCeR+slQWnKYE=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=QfCxHSDieDNxrfVV0mGa5eMSQigfMaUOUC33zftz9AsqM4jo4HALm5pqZxDqL3RK8 GXZ2NTV1KigA9XiTwNK88zlF2CkhSmeWQVZbxa5K3u5fYhx9BnPngVQdHVGXhKSOd6 tphoG36oIHhQrssSSABIbEaNR9UeU4hPZw8md/g2X/2C+N2WR+vlUzeN0tyQZtsPyJ rgaFtyDBXCCCWDaKOS+HEvR8da199/ZKIOqCIeKea5t4Fshz6M++vkoNNff9oS+eMj 6M8Jg8eRN05uRrfgSskM7mLUJG3rURroVJEqCdOTGgKeAJMljmTmfRCFLgY864wuBG hbpfawLigkLLA== Received: by quaco.ghostprotocols.net (Postfix, from userid 1000) id 0785F403B5; Tue, 16 May 2023 15:19:15 -0300 (-03) Date: Tue, 16 May 2023 15:19:14 -0300 From: Arnaldo Carvalho de Melo To: Ian Rogers Cc: "Liang, Kan" , Ahmad Yasin , Peter Zijlstra , Ingo Molnar , Stephane Eranian , Andi Kleen , Perry Taylor , Samantha Alt , Caleb Biggers , Weilin Wang , Edward Baker , Mark Rutland , Alexander Shishkin , Jiri Olsa , Namhyung Kim , Adrian Hunter , Florian Fischer , Rob Herring , John Garry , Kajol Jain , Sumanth Korikkar , Thomas Richter , Tiezhu Yang , Ravi Bangoria , Leo Yan , Yang Jihong , James Clark , Suzuki Poulouse , Kang Minchul , Athira Rajeev , linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v4 00/44] Fix perf on Intel hybrid CPUs Message-ID: References: <20230502223851.2234828-1-irogers@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: X-Url: http://acmel.wordpress.com Precedence: bulk List-ID: X-Mailing-List: linux-perf-users@vger.kernel.org Em Mon, May 15, 2023 at 03:49:45PM -0700, Ian Rogers escreveu: > On Sun, May 14, 2023 at 5:03 AM Liang, Kan wrote: > > - Segmentation fault with perf stat --topdown on ADL (hybrid) and > > Cascade Lake. > > It looks like a legacy issue, may not be introduced by this patch set. > > Here is the backtrace. It looks like there is a NULL metric_group. > > > > (gdb) backtrace > > #0 0x00007ffff73035d1 in __strstr_sse2_unaligned () from /lib64/libc.so.6 > > #1 0x00000000004f9019 in metricgroup__topdown_max_level_callback > > (pm=, table=, > > data=0x7fffffff92f4) at util/metricgroup.c:1722 > > #2 0x00000000005e8a31 in pmu_metrics_table_for_each_metric > > (table=0xcb74d0 , > > fn=fn@entry=0x4f8ff0 , > > data=data@entry=0x7fffffff92f4) > > at pmu-events/pmu-events.c:61123 > > #3 0x00000000004fbc3b in metricgroups__topdown_max_level () at > > util/metricgroup.c:1742 > > #4 0x000000000042c135 in add_default_attributes () at builtin-stat.c:1845 > > #5 cmd_stat (argc=0, argv=0x7fffffffe3e0) at builtin-stat.c:2446 > > #6 0x00000000004b922b in run_builtin (p=p@entry=0xd5c530 > > , argc=argc@entry=2, > > argv=argv@entry=0x7fffffffe3e0) at perf.c:323 > > #7 0x000000000040e373 in handle_internal_command (argv=0x7fffffffe3e0, > > argc=2) at perf.c:377 > > #8 run_argv (argv=, argcp=) at > > perf.c:421 > > #9 main (argc=2, argv=0x7fffffffe3e0) at perf.c:537 > > (gdb) > > Thanks, there's a 1-liner for the segv: > https://lore.kernel.org/lkml/20230515224530.671331-1-irogers@google.com/ > Arnaldo, can we make sure this goes toward the next 6.4 release candidate? Sure. - Arnaldo