Received: by 2002:a05:6a10:f3d0:0:0:0:0 with SMTP id a16csp4588265pxv; Tue, 29 Jun 2021 10:26:28 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzsikow4AxBM4oSTwUDgfikXPbu7Y1RoGpLsLhzhBQMA9aWuCtS0gfJZcroDNk9nw3IH64l X-Received: by 2002:a02:666d:: with SMTP id l45mr5522859jaf.0.1624987588601; Tue, 29 Jun 2021 10:26:28 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1624987588; cv=none; d=google.com; s=arc-20160816; b=Q/3oBMukafx50N+twGidPiCZPCV2OgGUrA1lN0h3AWOyqDFgsdpg8iFjoABBrC4OgR I9aL9YQKoaJt/XZ9hMxeRRIPZDSVKPdcA37APTh+mefDToSFkHfxvBEtff63mLwH4C2c 62lt0kfdxETZlHmweCSwXIFAtSDy5j0LkDdCs1SWpXPyq5o69Yk2CRCOxEJ3mAcPK2gI E1XFChTcMmXdz7xGI/FIemyaWbEsRQqZQ3zakvfosBx0WFenuInzjx+lPXP7EN90CbBg uPO//mMsQpSjqPc1oOoX8AEMQ4SjtXahn5jB6vehfviJuie6CKWS4CVYtBHUmQrZMW8i 8ujQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:content-language :in-reply-to:mime-version:user-agent:date:message-id:from:references :to:subject; bh=Ri3WXGzuTojlL+9mSjxaDY7X42NrL+ai9PlKm2Tb+w4=; b=0I4mPuQAyI2SJ0bK9Md+B51xA4YkEgSat7QxZBafYaEYBNpfTbLKNR3ZL/Zo3mXjze Q4caWydmCPx9THos1LQ4SMnTBH0JexVMZ4T24flyzPpLxzU75IBwKBBpUAuDq44B5k6P rG8x4Rqyo1q9W6USNh8/F8TPjghLuqBqaJfx/RHyyEFDfc8c1mmEFSb/KBNNfvWcXHEX wjMtljgB9/uXnUaLxQVLt9lIQmQg6XdA9QFbscYLnVivZafVtlHPgAR1lWCnLoy0MyOX r2EPQ/Omu1ANQ27VH6iW5AmbGYe4kweuYIIJwJOpzv9D+0gnwb0jRIkRbZhTDsMwRr1W AIfA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=canonical.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id i13si25141834ilm.45.2021.06.29.10.26.15; Tue, 29 Jun 2021 10:26:28 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=canonical.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234166AbhF2R1k (ORCPT + 99 others); Tue, 29 Jun 2021 13:27:40 -0400 Received: from youngberry.canonical.com ([91.189.89.112]:45438 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232362AbhF2R1g (ORCPT ); Tue, 29 Jun 2021 13:27:36 -0400 Received: from mail-ed1-f71.google.com ([209.85.208.71]) by youngberry.canonical.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.93) (envelope-from ) id 1lyHTw-0003NL-GX for linux-kernel@vger.kernel.org; Tue, 29 Jun 2021 17:25:08 +0000 Received: by mail-ed1-f71.google.com with SMTP id g14-20020a056402424eb02903954930851bso5476352edb.0 for ; Tue, 29 Jun 2021 10:25:08 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=Ri3WXGzuTojlL+9mSjxaDY7X42NrL+ai9PlKm2Tb+w4=; b=cOuIAjY6R79oZ60GcSiTn/yH2PwS3WDaQRhhxkqB+PDYHmdzC6H1vqzWNUR5S7fY8W UGGMaBOCfaRMHOl/3r6Bvy2jxYldr3J02wjdRtVKXIfrqCcMUEeRq+rTZiq5wcu7MWfl 8PX2sZdVFvbfVawrR1xB3/JxiEE1RJMyLn12zip4z5Jbs3JPcmwKNbzfyl4qxAbxTHFy 3n+L+lJkXiV30DseITWRW8BfBcR6dUKzp2QsG1WwUI/hbhjNvSkKksdvLbV6Zq+qr5zU c8jTkZDNLcg3e0KYzr8kbuZSlntcR3QOKi4lXxqK4RMCWI4hAFubr5J1Ci+i0B/6sDV+ sfkA== X-Gm-Message-State: AOAM5307vcDE6RbVe3LNjWHOQgaUVUjvFggVL/Y8l/tXcnxVgRGwD/Ii OPFJfqquwAUAOUIgaaNOqJHjq47jMhgH9yg5kMmm3x6jop5IIjG9k44Z1VjXVPQID5GexP6BJD6 e8fwKBxwzAvy/GQOTZWzzFerKLzaFujUikRzdmfbr8g== X-Received: by 2002:a05:6402:31a9:: with SMTP id dj9mr41493364edb.164.1624987508253; Tue, 29 Jun 2021 10:25:08 -0700 (PDT) X-Received: by 2002:a05:6402:31a9:: with SMTP id dj9mr41493349edb.164.1624987508141; Tue, 29 Jun 2021 10:25:08 -0700 (PDT) Received: from [192.168.1.115] (xdsl-188-155-177-222.adslplus.ch. [188.155.177.222]) by smtp.gmail.com with ESMTPSA id n2sm11450840edi.32.2021.06.29.10.25.07 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 29 Jun 2021 10:25:07 -0700 (PDT) Subject: Re: [BUG] btrfs potential failure on 32 core LTP test (fallocate05) To: Josef Bacik , Chris Mason , David Sterba , linux-btrfs@vger.kernel.org, Linux Kernel Mailing List , "kernel-team@lists.ubuntu.com" , "ltp@lists.linux.it" , Qu Wenruo , Filipe Manana References: From: Krzysztof Kozlowski Message-ID: Date: Tue, 29 Jun 2021 19:25:07 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 29/06/2021 19:20, Josef Bacik wrote: > On 6/29/21 1:00 PM, Krzysztof Kozlowski wrote: >> Dear BTRFS folks, >> >> I am hitting a potential regression of btrfs, visible only with >> fallocate05 test from LTP (Linux Test Project) only on 32+ core Azure >> instances (x86_64). >> >> Tested: >> v5.8 (Ubuntu with our stable patches): PASS >> v5.11 (Ubuntu with our stable patches): FAIL >> v5.13 mainline: FAIL >> >> PASS means test passes on all instances >> FAIL means test passes on other instance types (e.g. 4 or 16 core) but >> fails on 32 and 64 core instances (did not test higher), >> e.g.: Standard_F32s_v2, Standard_F64s_v2, Standard_D32s_v3, >> Standard_E32s_v3 >> >> Reproduction steps: >> git clone https://github.com/linux-test-project/ltp.git >> cd ltp >> ./build.sh && make install -j8 >> cd ../ltp-install >> sudo ./runltp -f syscalls -s fallocate05 >> > > This thing keeps trying to test ext2, how do I make it only test btrfs? Thanks, It tests all available file systems, just wait till it gets to btrfs. I don't know how to limit it only to one file system. Best regards, Krzysztof