From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pg1-f201.google.com (mail-pg1-f201.google.com [209.85.215.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5B2022DF12A for ; Sun, 14 Sep 2025 18:29:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.215.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757874551; cv=none; b=onMKN10R8XMywYqVc/Z5IuKmOd8pZOiSXu306wbRqVw3N9205qkqe/EfbB+9rMDWorTkviKNN7cPt0ac7kqrlSTWgsIwo328tUAnVaxbDJRxQeXOwi60udZ6tz5CvuAnw+I8Jt033l3umv57lNPqBBO20e/kHA2zCQYsDYkZ/dc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757874551; c=relaxed/simple; bh=0lYXmqlBpYk30yEty0a21FLXkVSzUHTg5T5wQf3ZAeE=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Content-Type; b=K144qSL3kc5jJw0Qz1hglV3N0ST7vNr+TtxGLFALv5W94kRW26A2mECFXZn3WU0g5edxd0P9wAuXfuYCW/+0WiFFvSxzjAfLHuEmM4OVnv/tET4wDtDGZNBqIqwEWqqhPG3rjoCtqYZCNb4KEgXLLBGbntH1T7RP5zrb7+GOjB4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=3Xg7tmdP; arc=none smtp.client-ip=209.85.215.201 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="3Xg7tmdP" Received: by mail-pg1-f201.google.com with SMTP id 41be03b00d2f7-b4e63a34f3fso2251829a12.1 for ; Sun, 14 Sep 2025 11:29:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1757874550; x=1758479350; darn=vger.kernel.org; h=to:from:subject:message-id:references:mime-version:in-reply-to:date :from:to:cc:subject:date:message-id:reply-to; bh=TvKgbG4XWpm9j/FvFDZJd7wO0CKfdrc2kepJ8gLxvYI=; b=3Xg7tmdPIR4FY3+tzNRKBWwjSVfd7O6KZJsj8dEJl0s2eEc1hakrznlhxxcXr4ZQnO 7jQkLswZBU7vqFCyMtfiLMbTwPsWRTKUmdWaT6ABumrP0YhWlLIjpTuqq3iA2gIAGJ49 x7rcxbml/aY2EqSbYShHdYArwp9nC97Yc8N70wLEb2uG7a+MHYZioaq+6p9KfjB7Gf5V a+wV3/zkd0ZG+b+T51DNK+PnOAA+7DngVY3poCDSggmltJ5M7z8LlCmNtCvNc7Rzkrh7 euh8WwF2IdJEzqnfV/w/yYw2ZaI704STvy5fnbSTwuoRQQTmUa04sv90B7lKtSu0wOUv M9YA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1757874550; x=1758479350; h=to:from:subject:message-id:references:mime-version:in-reply-to:date :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=TvKgbG4XWpm9j/FvFDZJd7wO0CKfdrc2kepJ8gLxvYI=; b=t22DB1I2ZZQyQNSOjAGX2Cy3TfsUEvtjeentAJ36ioIbBtuH5mlFsBFRSbak6r+qus P3G4tFSWET7O6q6skkpya4o/NnYoIGHe9IhsCj4GhPZTi+Z0yRI4xvXBytHL2bTnA73k lke2gbsRBjHNhpKLHb843G1fXKV6Z2PxliHDX0Irc1Al9Iq80J3a1UMakJ2zc4bNBxjq YlQ5npNAqROWrhhkp+hTDbuwBcFnyFaYxCWWYyofTPfMGOeW92QIrEDHF7Uyuqetqne7 MVvwBofGyFsnR/cb+benMT1gyNS52Rvhhtu2hTJnEapdmBS1eUR0RqLpxIz+LcMlS7OD XlLA== X-Forwarded-Encrypted: i=1; AJvYcCXlN9OspV5kpQboRnF1frr7m3oguB1XYEqKEWrN8dpoB5JHeZHNRQqSYyseOSTp+h0+X0X9k1ltEjotn+R1orLC@vger.kernel.org X-Gm-Message-State: AOJu0YyjCJcDKuAQZLsXDwfxOWAN61854Xc1/aSN+amejlxPS6q8dmCY kdjdf7Yp6LaQrsEH8q1MMoOG0HknbzK2ZnW2QQZBuSekoqmtrXmzaDRMCIxPBGBgP9aDbX5QxF5 wDkHxe+QWWQ== X-Google-Smtp-Source: AGHT+IGxW9Yja9epoc4iIK/yOFAiIZoZRfLvsUOXZa2OGRrep9OIb1OYkQrTlNUDj0uJte5SI7cFznkvnVg6 X-Received: from pjss8.prod.google.com ([2002:a17:90a:1c08:b0:32e:12f0:20e3]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6a20:548d:b0:250:9175:96db with SMTP id adf61e73a8af0-2602aa853eemr12978800637.26.1757874549586; Sun, 14 Sep 2025 11:29:09 -0700 (PDT) Date: Sun, 14 Sep 2025 11:28:59 -0700 In-Reply-To: <20250914182900.1960567-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-perf-users@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250914182900.1960567-1-irogers@google.com> X-Mailer: git-send-email 2.51.0.384.g4c02a37b29-goog Message-ID: <20250914182900.1960567-4-irogers@google.com> Subject: [PATCH v1 3/4] perf test: Don't fail if user rdpmc returns 0 when disabled From: Ian Rogers To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , Kan Liang , James Clark , Chun-Tse Shao , Thomas Falcon , Yang Li , linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" In certain hypervisor set ups the value 0 may be returned but this is only erroneous if the user rdpmc isn't disabled. Signed-off-by: Ian Rogers --- tools/perf/tests/mmap-basic.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/tests/mmap-basic.c b/tools/perf/tests/mmap-basic.c index 3c89d3001887..3313c236104e 100644 --- a/tools/perf/tests/mmap-basic.c +++ b/tools/perf/tests/mmap-basic.c @@ -322,7 +322,7 @@ static int test_stat_user_read(u64 event, enum user_read_state enabled) } perf_evsel__read(evsel, 0, 0, &counts); - if (counts.val == 0) { + if (rdpmc_supported && counts.val == 0) { pr_err("User space counter reading for PMU %s [Failed read]\n", pmu->name); ret = TEST_FAIL; goto cleanup; -- 2.51.0.384.g4c02a37b29-goog