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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 047EDCCD199 for ; Thu, 16 Oct 2025 14:36:22 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1v9P4J-0007CV-6J; Thu, 16 Oct 2025 10:35:03 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1v9P4H-00079t-71 for qemu-devel@nongnu.org; Thu, 16 Oct 2025 10:35:01 -0400 Received: from mail-ej1-x630.google.com ([2a00:1450:4864:20::630]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1v9P46-0004g7-PJ for qemu-devel@nongnu.org; Thu, 16 Oct 2025 10:34:59 -0400 Received: by mail-ej1-x630.google.com with SMTP id a640c23a62f3a-b48d8deaef9so158437166b.2 for ; Thu, 16 Oct 2025 07:34:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1760625285; x=1761230085; darn=nongnu.org; h=content-transfer-encoding:mime-version:message-id:date:user-agent :references:in-reply-to:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=qen10iGnYw0Z2ESaIYLPhDAekiTl03kgAkiwZwhpmcs=; b=qL4gs0eMyIZLvKeqS2TlZEC/Nn9/QZmbpqFbtpXERS5+LxzYXmxL6Wtw40ZTrOkvmZ HRty0ayOSztGyTMmGv9g7UhoE976udBKXqADYD7mRudVcMhcvYDK/THA0G8dDpAFB0JG ALslGCXTGnieZlDPki8w/DYAMF71P6lLFo4+X+etrfAB+Zy7tiHIVAaUXC68GhqNBcLM hbcAHepCc2J1wjybmOBNFThckDXL+RxUT9RnAJOaPPnl4exWAETBqBQtqiU0LwQHVg+L zeF9hjFls6QG87qD68dot+LjjrH3BXELU1DAe6zGq3Ch7h2FxhxCo8WkFw+NPib2uEii RXuQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1760625285; x=1761230085; h=content-transfer-encoding:mime-version:message-id:date:user-agent :references:in-reply-to:subject:cc:to:from:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=qen10iGnYw0Z2ESaIYLPhDAekiTl03kgAkiwZwhpmcs=; b=LQNBd/fdB+4Ouzor021YKhuvXwya2TeMXa+EIwyRe9aM9DS6DkX7bpUblmkHVna7yU Cxvl1uI7TlwbIDAYRzWyizBvlffw2eTRXkvsX0JLOUzi2P6/8mnzw1IcUzCpmobeEtTe 9SCpwoCo7nfhaNG1I2K66whxBis1vifm6c3vLyBTGutuZfPcDDde79MwWJvcms0ZneoT p6offu1V/ZhuiF5REjIwsekrr+wSTqWehOrNhmdzThauKy5JkN9NGdVlSbuUMnU29JTI wGh97xxxaIW02VJrQXqtIzowYYxCn/UgS79cXBPBx7ngciUhMTcgRxU115ZmhlohhUza 4V6g== X-Gm-Message-State: AOJu0YxTJykfZ334AR51F7J6ZpWvwosMK4NtX1orFnHcbGa22lu1D/wa Ld8azK1zwEStCJTOzoREGbhKqxtSD1Lv4C4qNRoP/Gmsv9F+7RKEdc+83m8c4YjS6XQ= X-Gm-Gg: ASbGncvgHqpuXEgWlVAtBqmc3W149UzP0M3ZJed0eMEE7vU4j/WaUFNXpWS1CIoDQgp jUnxg/TDIAR1wHXweuyas8+9xm7NJJVO4s/wKEVB/sa4qbAs+qeZeRz/Jel8QUav2MTJkj5yyKf WAZfInH9dMJ6ZcxIsQlARdJ1aga7mhYamh2nPpcvmGyTMKzPnVocUOUxZgG/fy+IcRG8FqEc7t7 QA/cg1Hwh8nKfBcyvX2J54D1a7zfEMRGmGbGYrmL75avqJkBep4SkQFyYScoza7y2FB9MWai0lV bIIaOhO5o/COpuJ5UGZW5OE0K8thrmPtmC8NYpKYCmgc6/Vbnf/Ld3kofhSeWqOLRSdxrNJMPi3 YuqpKtzL6pZNW2U6QESI37ZEQHVrguniw4Z/nzh0ixlYBRMbsDVc0/19tG2DSGdC5ntEYI0Dg4r STH7plCPf8wL2BZ34= X-Google-Smtp-Source: AGHT+IGnVmMvBX9AFVJAaQqIQAkPGJxcOTTVblxktcGkVJwn5oIhl1i6UOxY/7372VTguIW+DIai1Q== X-Received: by 2002:a17:907:971e:b0:b45:1063:fb62 with SMTP id a640c23a62f3a-b6471f3b921mr20348066b.24.1760625285487; Thu, 16 Oct 2025 07:34:45 -0700 (PDT) Received: from draig.lan ([185.126.160.19]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b5cba45ad2fsm530218166b.35.2025.10.16.07.34.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 16 Oct 2025 07:34:44 -0700 (PDT) Received: from draig (localhost [IPv6:::1]) by draig.lan (Postfix) with ESMTP id 1ABCC5F80C; Thu, 16 Oct 2025 15:34:44 +0100 (BST) From: =?utf-8?Q?Alex_Benn=C3=A9e?= To: Peter Maydell Cc: qemu-devel@nongnu.org, qemu-stable@nongnu.org Subject: Re: [PATCH] tests/tcg/multiarch/linux/linux-test: Don't try to test atime update In-Reply-To: <20251010121435.3885228-1-peter.maydell@linaro.org> (Peter Maydell's message of "Fri, 10 Oct 2025 13:14:35 +0100") References: <20251010121435.3885228-1-peter.maydell@linaro.org> User-Agent: mu4e 1.12.14-dev1; emacs 30.1 Date: Thu, 16 Oct 2025 15:34:44 +0100 Message-ID: <87tszyj4or.fsf@draig.linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Received-SPF: pass client-ip=2a00:1450:4864:20::630; envelope-from=alex.bennee@linaro.org; helo=mail-ej1-x630.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Peter Maydell writes: > The linux-test test includes an attempt to check the utime and stat > syscalls by setting the atime and mtime of a file to specific values, > and then calling stat() to check that the values read back correctly. > > Unfortunately this is flaky, as it will fail if some other process > (for instance a virus scanner, backup program, etc) gets in and reads > the file between the utime() and stat() call, resulting in a host > syscall sequence like this: Queued to maintainer/oct-2025, thanks. --=20 Alex Benn=C3=A9e Virtualisation Tech Lead @ Linaro