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 X-Spam-Level: X-Spam-Status: No, score=-2.4 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 273CAC28CBC for ; Wed, 6 May 2020 10:41:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D60B720663 for ; Wed, 6 May 2020 10:41:46 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (3072-bit key) header.d=samba.org header.i=@samba.org header.b="awOOJYL6" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728768AbgEFKlq (ORCPT ); Wed, 6 May 2020 06:41:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42722 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1725824AbgEFKlp (ORCPT ); Wed, 6 May 2020 06:41:45 -0400 Received: from hr2.samba.org (hr2.samba.org [IPv6:2a01:4f8:192:486::2:0]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 341F7C061A0F for ; Wed, 6 May 2020 03:41:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=samba.org; s=42; h=Date:Message-ID:From:Cc:To; bh=OMXb5DekiL8X7dKcftjRlT1c5V2801zWN2NT2efig+c=; b=awOOJYL6zbO+rvc0DLXlirW0zt qViQVvFW8SdFwWxv8OsvlMAG3wv6/v9jRwvYnt/cyAC/aPgype7v1521yOKWH/5oOTVMiXlF1uzFR Q1jBd0KkPHfcz+0VapOX5faqfzzyXGFbrRiyCRvRroFB8t7t8p7z2tGzYyqQWoVm7MD5Q9xbx/vf2 Rhu+gh7rK0b9HgVcEor48s+1jaBYiqWzlxK+NnEF86Kmf5xNoOWcIM8Rw7av0YtYa14TJrYLjuRmj 87FoXEF9E3/CRRBL66k93CIH9cJp4CP71o+vi+Nsat3El7xuernHx1qZzHALOkt8HAmLmw104MIRh 3vhwiY/3VAuduFkxRvHohdUg6LB2oC8KMfK8C9KY0Ue2LhQqLpN8Wkk06/C2tdYWt8+PzL1YXaetC inC9jdFVj45JPUvP/ObG9nRep3EF6fY6sNOPIFp1bqU5bYv8K6eIEhWUGb6KfTHATo2p9XyiAQwJ8 KNGPlF0vJf7UeK8nsdGYSeUJ; Received: from [127.0.0.2] (localhost [127.0.0.1]) by hr2.samba.org with esmtpsa (TLS1.3:ECDHE_RSA_CHACHA20_POLY1305:256) (Exim) id 1jWHUl-0004h9-81; Wed, 06 May 2020 10:41:43 +0000 Subject: Re: Data Corruption bug with Samba's vfs_iouring and Linux 5.6.7/5.7rc3 To: Anoop C S , Jeremy Allison Cc: Jens Axboe , Samba Technical , io-uring References: <0009f6b7-9139-35c7-c0b1-b29df2a67f70@samba.org> <102c824b-b2f5-bbb1-02da-d2a78c3ff460@kernel.dk> <7ed7267d-a0ae-72ac-2106-2476773f544f@kernel.dk> <20200505174832.GC7920@jeremy-acer> <3a3e311c7a4bc4d4df371b95ca0c66a792fab986.camel@cryptolab.net> <48c9ddf2-31a3-55f7-aa18-5b332c6be6a6@samba.org> From: Stefan Metzmacher Autocrypt: addr=metze@samba.org; prefer-encrypt=mutual; keydata= xsNNBFYI3MgBIACtBo6mgqbCv5vkv8GSjJH607nvXIT65moPUe6qAm2lYPP6oZUI5SNLhbO3 rMYfMxBFfWS/0WF8840mDvhqPI+lJGfvJ1Y2r8a9JPuqsk6vwLedv62TQe5J3qMCR2y4TTK1 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<48c9ddf2-31a3-55f7-aa18-5b332c6be6a6@samba.org> Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="yAjxnJhkQiFDgwsZrcnZdDFxcA54RcpVa" Sender: io-uring-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --yAjxnJhkQiFDgwsZrcnZdDFxcA54RcpVa Content-Type: multipart/mixed; boundary="sOPnD47novnbsq2n4CvpX5mjZYl80R47A"; protected-headers="v1" From: Stefan Metzmacher To: Anoop C S , Jeremy Allison Cc: Jens Axboe , Samba Technical , io-uring Message-ID: <5811bf73-7cd4-125e-ac1d-8dbb9a0d7c12@samba.org> Subject: Re: Data Corruption bug with Samba's vfs_iouring and Linux 5.6.7/5.7rc3 References: <0009f6b7-9139-35c7-c0b1-b29df2a67f70@samba.org> <102c824b-b2f5-bbb1-02da-d2a78c3ff460@kernel.dk> <7ed7267d-a0ae-72ac-2106-2476773f544f@kernel.dk> <20200505174832.GC7920@jeremy-acer> <3a3e311c7a4bc4d4df371b95ca0c66a792fab986.camel@cryptolab.net> <48c9ddf2-31a3-55f7-aa18-5b332c6be6a6@samba.org> In-Reply-To: <48c9ddf2-31a3-55f7-aa18-5b332c6be6a6@samba.org> --sOPnD47novnbsq2n4CvpX5mjZYl80R47A Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable Am 06.05.20 um 12:33 schrieb Stefan Metzmacher via samba-technical: > Hi Anoop, >=20 >> I could reproduce the difference in SHA256 checksum after copying a >> directory with 100 copies of test file(provided by reporter) from >> io_uring VFS module enabled share using Windows explorer(right-click- >>> copy/paste). Only 5 out of 100 files had correct checksum after copy >> operation :-/ >=20 > Great! Can you please try to collect level 1 log files with > the patch https://bugzilla.samba.org/attachment.cgi?id=3D15955 > applied? >=20 > If you use files with only 0xff please also use the > "io_uring:check_ff=3Dyes" option. And "log level =3D 1" and "max log size =3D 0" Thanks! metze --sOPnD47novnbsq2n4CvpX5mjZYl80R47A-- --yAjxnJhkQiFDgwsZrcnZdDFxcA54RcpVa Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEEfFbGo3YXpfgryIw9DbX1YShpvVYFAl6ylGMACgkQDbX1YShp vVYEAQ/8DicmSwUBPLsRdN52QTPQFHjCCGE7jfjJu6w8LQePMsgGA9I9152Lb+Lf nu1NfEp5gnyAqyjK9kgJlheMi6XmPaCZDmlp08eK0THT212xRRXyWr3Z6grlG2Jv 0uTyYBUPE8KVXMb+T3zAZzxg3d5cv6lwrB4N0rbsyjV8RjPQ3Halnto3pbXZ5UdV EenNeSqRKs04/pQoT4ITDCMzLeW+c/OSsbMh2PterUSGB5EbDGz8RXmB0PuzQcpA wBgwcqPtL8pv8DNmMbAadpeeiPfXIdpaq2Y9aysHuZDKjlQn/PLnFeuFbQwMG6f5 NYWfMOFgxNupSyjZuxeX1Mmc/0skV5sjCHoriPyFzx9GqhFH/o8Lpx9daLId1bSB iNk/fXZSgJkJPNZyVWZS1DCpWcbW8Eo1bw6oj7v3yO1Clm7bHQRsWyrBxre24JRE dm8qDU2RKWb6MaAVUtRPlA3GwyM0BvmCs+OD4WVw/oNWTHT0qrOR3DVcvvwqfybE fgkptS/lV0NRutPCAMyNqivneXBm03pm8KZTcFbUgddgaTz3FWZId6UAjeiHKAlA 4vkEgMY6N0wLzmhU2RFczN5ZVGlZSjc+8PnHdN+LM33MHELqGYkKjXlJByW9U7jN VnVNexxXPJPI5TWeu5Aj+bK3kiUm9KejI4jtNYTHMvI0ONAJVhE= =nUg1 -----END PGP SIGNATURE----- --yAjxnJhkQiFDgwsZrcnZdDFxcA54RcpVa--