From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([209.51.188.92]:43312) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hMPwl-00039F-7G for qemu-devel@nongnu.org; Fri, 03 May 2019 00:37:20 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hMPwk-0003of-CM for qemu-devel@nongnu.org; Fri, 03 May 2019 00:37:19 -0400 References: <68cc5bbc-ed6f-e001-e376-ccd986683b88@redhat.com> From: Thomas Huth Message-ID: <61685a48-b84e-c379-7193-f456e82635ba@redhat.com> Date: Fri, 3 May 2019 06:37:03 +0200 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="uVRlTm7E2l2HXjKSuDiOFq69MEpRDVd6o" Subject: Re: [Qemu-devel] Failing QEMU iotest 175 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Eric Blake , Qemu-block , QEMU Developers Cc: Kevin Wolf , Max Reitz , Nir Soffer This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --uVRlTm7E2l2HXjKSuDiOFq69MEpRDVd6o Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 02/05/2019 23.56, Eric Blake wrote: > On 4/28/19 10:18 AM, Thomas Huth wrote: >> QEMU iotest 175 is failing for me when I run it with -raw: >> >=20 >> =3D=3D creating image with default preallocation =3D=3D >> Formatting 'TEST_DIR/t.IMGFMT', fmt=3DIMGFMT size=3D1048576 >> -size=3D1048576, blocks=3D0 >> +size=3D1048576, blocks=3D2 >=20 > What filesystem? ext4 > It should be fairly obvious that 'stat -c blocks=3D%b' is > file-system dependent (some allocate slightly more or less space, based= > on granularities and on predictions of future use), so we may need to > update the test to apply a filter or otherwise allow a bit of fuzz in > the answer. But 0/2 is definitely different than... >> >> =3D=3D creating image with preallocation off =3D=3D >> Formatting 'TEST_DIR/t.IMGFMT', fmt=3DIMGFMT size=3D1048576 prealloca= tion=3Doff >> -size=3D1048576, blocks=3D0 >> +size=3D1048576, blocks=3D2 >> >> =3D=3D creating image with preallocation full =3D=3D >> Formatting 'TEST_DIR/t.IMGFMT', fmt=3DIMGFMT size=3D1048576 prealloca= tion=3Dfull >> -size=3D1048576, blocks=3D2048 >> +size=3D1048576, blocks=3D2050 >=20 > 2048/2050, so we DO have some indication of whether the file is sparse > or fully allocated. Maybe we could check that the value after "blocks=3D" is a single digit i= n the first case, and matches "blocks=3D20.." in the second case? Thomas --uVRlTm7E2l2HXjKSuDiOFq69MEpRDVd6o Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQIcBAEBAgAGBQJcy8V0AAoJEC7Z13T+cC21qZMP/1CqP4adU7txqJaftatQ9PXx q+91yK9EQWAZ+NJxtL0664WiTt9NrGNGVTMrSq8ot5e2wwzerm7giflNBMyre3Qs PhHGkn/KjpRq9EaTbB0ZAhh9GTYs2AfUe7UKUB568u1wyyhy066mcvVvq1toryFM 68nFfRcEl8mRfJmmWdDvVUMNxIkkWOhJs9envN0moKlpJd5USqe7sOMLFRObw3nd vKdJiMva4wXCTH+NTgCWnUAxHndgGFjO0B5aAH6j73V73Elm0RlEebZL33OgYL4D D02tsfmEeW/4gnRvkJ46vFLuRzp3fUQEUtdvJwRpYFucBsNii6FQzlAj37pu8Ocu MGTILSgncZvRQfK4vHBATM1Lnx58LNtj/ZMAmLW6P5Ezd3YrBfCi9ILv4ogWYBas V/bMg//Jka3Dx4aHHl07ctCCCkxhgeyhKnn+o6IuhbZNA+nq2m4fmKCexNUgDaYz XslalHZZe7zTjrv/ABwCui1/JOtYjPSsj3MY0fcymL4euiadC8dJfoBqvzZ1lWNL JK2zoB6plxfhHiKlvLA6NL1z0LOMFiGKNCM91/6gqAH4V5r+N5rL6elUnZXj+tJz ZPSOJaLCnl3gS5jKgm6L8+w/nhKhso4spapX8i7Pe8/uvzEQoEcCfK+sbOoURUlR JGTrdMR6Hbwcyxb+7X+l =rg2q -----END PGP SIGNATURE----- --uVRlTm7E2l2HXjKSuDiOFq69MEpRDVd6o-- 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=-0.9 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS autolearn=ham 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 756EAC43219 for ; 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Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="uVRlTm7E2l2HXjKSuDiOFq69MEpRDVd6o" X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.40]); Fri, 03 May 2019 04:37:11 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: Re: [Qemu-devel] Failing QEMU iotest 175 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Nir Soffer , Max Reitz Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Message-ID: <20190503043703.bEGfw8c1oI89HaNVNvLV9CQPIDXQbXi0pZ_MB3SybhI@z> This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --uVRlTm7E2l2HXjKSuDiOFq69MEpRDVd6o Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 02/05/2019 23.56, Eric Blake wrote: > On 4/28/19 10:18 AM, Thomas Huth wrote: >> QEMU iotest 175 is failing for me when I run it with -raw: >> >=20 >> =3D=3D creating image with default preallocation =3D=3D >> Formatting 'TEST_DIR/t.IMGFMT', fmt=3DIMGFMT size=3D1048576 >> -size=3D1048576, blocks=3D0 >> +size=3D1048576, blocks=3D2 >=20 > What filesystem? ext4 > It should be fairly obvious that 'stat -c blocks=3D%b' is > file-system dependent (some allocate slightly more or less space, based= > on granularities and on predictions of future use), so we may need to > update the test to apply a filter or otherwise allow a bit of fuzz in > the answer. But 0/2 is definitely different than... >> >> =3D=3D creating image with preallocation off =3D=3D >> Formatting 'TEST_DIR/t.IMGFMT', fmt=3DIMGFMT size=3D1048576 prealloca= tion=3Doff >> -size=3D1048576, blocks=3D0 >> +size=3D1048576, blocks=3D2 >> >> =3D=3D creating image with preallocation full =3D=3D >> Formatting 'TEST_DIR/t.IMGFMT', fmt=3DIMGFMT size=3D1048576 prealloca= tion=3Dfull >> -size=3D1048576, blocks=3D2048 >> +size=3D1048576, blocks=3D2050 >=20 > 2048/2050, so we DO have some indication of whether the file is sparse > or fully allocated. Maybe we could check that the value after "blocks=3D" is a single digit i= n the first case, and matches "blocks=3D20.." in the second case? Thomas --uVRlTm7E2l2HXjKSuDiOFq69MEpRDVd6o Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQIcBAEBAgAGBQJcy8V0AAoJEC7Z13T+cC21qZMP/1CqP4adU7txqJaftatQ9PXx q+91yK9EQWAZ+NJxtL0664WiTt9NrGNGVTMrSq8ot5e2wwzerm7giflNBMyre3Qs PhHGkn/KjpRq9EaTbB0ZAhh9GTYs2AfUe7UKUB568u1wyyhy066mcvVvq1toryFM 68nFfRcEl8mRfJmmWdDvVUMNxIkkWOhJs9envN0moKlpJd5USqe7sOMLFRObw3nd vKdJiMva4wXCTH+NTgCWnUAxHndgGFjO0B5aAH6j73V73Elm0RlEebZL33OgYL4D D02tsfmEeW/4gnRvkJ46vFLuRzp3fUQEUtdvJwRpYFucBsNii6FQzlAj37pu8Ocu MGTILSgncZvRQfK4vHBATM1Lnx58LNtj/ZMAmLW6P5Ezd3YrBfCi9ILv4ogWYBas V/bMg//Jka3Dx4aHHl07ctCCCkxhgeyhKnn+o6IuhbZNA+nq2m4fmKCexNUgDaYz XslalHZZe7zTjrv/ABwCui1/JOtYjPSsj3MY0fcymL4euiadC8dJfoBqvzZ1lWNL JK2zoB6plxfhHiKlvLA6NL1z0LOMFiGKNCM91/6gqAH4V5r+N5rL6elUnZXj+tJz ZPSOJaLCnl3gS5jKgm6L8+w/nhKhso4spapX8i7Pe8/uvzEQoEcCfK+sbOoURUlR JGTrdMR6Hbwcyxb+7X+l =rg2q -----END PGP SIGNATURE----- --uVRlTm7E2l2HXjKSuDiOFq69MEpRDVd6o--