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 6C1EEC77B73 for ; Sun, 4 Jun 2023 11:38:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230437AbjFDLiS (ORCPT ); Sun, 4 Jun 2023 07:38:18 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36424 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229788AbjFDLiR (ORCPT ); Sun, 4 Jun 2023 07:38:17 -0400 Received: from mail-ej1-x634.google.com (mail-ej1-x634.google.com [IPv6:2a00:1450:4864:20::634]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 87295DC for ; Sun, 4 Jun 2023 04:38:15 -0700 (PDT) Received: by mail-ej1-x634.google.com with SMTP id a640c23a62f3a-977d4a1cf0eso37276666b.1 for ; Sun, 04 Jun 2023 04:38:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1685878694; x=1688470694; h=content-transfer-encoding:cc:to:subject:from:content-language :user-agent:mime-version:date:message-id:from:to:cc:subject:date :message-id:reply-to; bh=2rusAMMBSsBeXYA05kondalVZp5FCvnTK7F71ZNyoHA=; b=Hx+hqVphtxbMNEM4q6MqwH6e5HM2MEZhOZsLz7RcZBQ1fTsrGHwlYhiVzKhx4GcQ5l aGKT8ihhXJjnhkn7f7BNZEUpyP+ac5oaanUG+3aJWLSQ0akF+LnG6W84LffssMXa4awX gXcw23gxi740htLd7MPcS+ke9QtDdLYBpyRXITdHrdRqFxbgAkxAVXlaOwmnO9LPkUr8 b7z/Uj9BAjcAf1mdw5tLla90XRMqO2DmPGIb4wd633YqhHQf7QC4P0AAEHZxK+axYihU JVMTkO+ZJJVbWcIV+g3JMQ6CepjW80oT69k5KhDCgNvVOyTcrtt9HRVYDJ4FGSP+FSEO N5yg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1685878694; x=1688470694; h=content-transfer-encoding:cc:to:subject:from:content-language :user-agent:mime-version:date:message-id:x-gm-message-state:from:to :cc:subject:date:message-id:reply-to; bh=2rusAMMBSsBeXYA05kondalVZp5FCvnTK7F71ZNyoHA=; b=hZYl55928nTvkrlL1SK+5b3QSpNnBV70/0jrxC1YTVowMJqM0uQq7DasvsToe06o49 QzDjwFs+u2TWw0O+RC+YRqgog5xpaHRartoYJgsV2EzpvqlqyeHPnwTsX/n6higsXHrG otXqlTeGUc9WV17tuJaLya1CWU6l1/xc9ovXoCHaQRu+YANYTs6NIVmru8aadOERFAxy 3kvLsVAZfm/2B3KlbJNxk4f+W65YMVf8yeElcjn4eeIUApzRrUnWV4haTAYjnUm2lLxt MFndvDXeJbL35uB7NbRnsKMsBPwEtOWv2WT6GC/QYQ9eYT6ldxc+GBCDBTKyBaHUN2+V v4bg== X-Gm-Message-State: AC+VfDwjmsrjXW+0ylpjRw5S2Tq+VLan7nkjUvoOtZfD8yJiNw5NNEGS AIEmsJlZm3hYPkFJ0R3+VE7EPu959Ii8Fitfghk= X-Google-Smtp-Source: ACHHUZ4jFxPvDAEztjDERKQ4kdD7IgyPuWYCoXh2O0zZkoZdRwdA1z1k/JdpolPkyx0uECm1fBTKbQ== X-Received: by 2002:a17:907:3f27:b0:94b:d57e:9d4b with SMTP id hq39-20020a1709073f2700b0094bd57e9d4bmr3848146ejc.2.1685878693835; Sun, 04 Jun 2023 04:38:13 -0700 (PDT) Received: from [192.168.1.20] ([178.197.199.204]) by smtp.gmail.com with ESMTPSA id g7-20020a1709063b0700b0097073f1ed84sm2947090ejf.4.2023.06.04.04.38.11 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 04 Jun 2023 04:38:13 -0700 (PDT) Message-ID: <3abd3693-ad87-9abf-a762-337076638fcc@linaro.org> Date: Sun, 4 Jun 2023 13:38:10 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.11.2 Content-Language: en-US From: Krzysztof Kozlowski Subject: [REGRESSION][BISECT] perf/core: Remove pmu linear searching code To: Ravi Bangoria , "Peter Zijlstra (Intel)" Cc: mark.rutland@arm.com, jolsa@kernel.org, irogers@google.com, bp@alien8.de, adrian.hunter@intel.com, linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org, "linux-samsung-soc@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "regressions@lists.linux.dev" Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-perf-users@vger.kernel.org Hi, #regzbot introduced: 9551fbb64d09 Bisect pointed to commit 9551fbb64d09 ("perf/core: Remove pmu linear searching code") as first one where all hardware events are gone from perf for ARMv7 Exynos5422 board. Expected: perf list | grep "Hardware event" branch-instructions OR branches [Hardware event] branch-misses [Hardware event] bus-cycles [Hardware event] cache-misses [Hardware event] cache-references [Hardware event] cpu-cycles OR cycles [Hardware event] instructions [Hardware event] Result: empty, no hardware events 1. Arch ARM Linux 2. exynos_defconfig 3. Board: - Odroid HC1 ARMv7, octa-core (Cortex-A7+A15), Exynos5422 SoC Systemd: v239 4. perf version 6.1.0 Best regards, Krzysztof