From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ivan Shapovalov Subject: Re: reiser4: BUG during a backup (sequentially reading the whole fs) on 4.9 Date: Sat, 03 Jun 2017 02:21:30 +0300 Message-ID: <1496445690.28911.1.camel@intelfx.name> References: <1488211296.5395.2.camel@intelfx.name> <1488212421.5395.3.camel@intelfx.name> <4a88640c-8d98-1cc0-5713-3abd76abf208@gmail.com> <1496328566.8314.2.camel@intelfx.name> <290631df-dc46-e8ef-041f-c353b7eecf88@gmail.com> <1496339175.12062.1.camel@intelfx.name> <59307242.5010705@gmail.com> <1496357947.4940.2.camel@intelfx.name> <5931CC9D.6080801@gmail.com> Reply-To: intelfx@intelfx.name Mime-Version: 1.0 Content-Type: multipart/signed; micalg="pgp-sha512"; protocol="application/pgp-signature"; boundary="=-I6WaGIBxYMb+0D+okuMx" Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=intelfx.name; s=google; h=message-id:subject:from:reply-to:to:date:in-reply-to:references :mime-version; bh=sH8WpqIyKkfIXBW8IqDjlyvfJq3jdTQ0v5bp3LVkOhU=; b=BPd6hkklG+3/io+EX6M1pgKAQdeHnZj/GDjXppMb+NXjqLcjrY5KUq0lCMeJtsBZR8 KAJ28RItoK3qE3AtJxUaeaCqfpyxF7bFbrcx+qVIDLz6A+1TVixCbJhf+fQEaYlDwFHg jksG/gF9EexJltkPXQzsnv3D1kMfyVeNfDDLQ= In-Reply-To: <5931CC9D.6080801@gmail.com> Sender: reiserfs-devel-owner@vger.kernel.org List-ID: To: Edward Shishkin , Reiserfs development mailing list --=-I6WaGIBxYMb+0D+okuMx Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Uh, I don't know exactly which partition is it. Strangely, I could not reproduce this with a mock-up load (find -exec cat {} \; >/dev/null), but odds are that it usually happens while reading a half-filled 500GB partition. Anyhow, I can put it on my public-facing NAS and give you either a download link (my uplink is 50 Mbps wide) or ssh access, if you would be kind enough to have a look at it :) BTW, if I enable checkpoints in borg (so it saves internal state periodically) and restart the backup from a checkpoint after the crash, it always finishes successfully. Does that confirm or refute your hypothesis? Thanks, --=20 Ivan Shapovalov / intelfx / On 2017-06-02 at 23:37 +0300, Edward Shishkin wrote: > Alas, can not reproduce it. > I suspect garbage on the leaf level. For some reasons > fsck can not detect it (on semantic pass). > How big is your partition? > Could you dd it to a file and let me download that file? >=20 > Thanks, > Edward. >=20 > On 06/02/2017 01:59 AM, Ivan Shapovalov wrote: > > Looking forward to your results. > >=20 > > And by "looking at the tree" you mean the debugfs output, right? > >=20 > > Thanks, >=20 >=20 --=-I6WaGIBxYMb+0D+okuMx Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEE5N8nvImcx2nJlFGce94XyOTjDp0FAlkx8voACgkQe94XyOTj Dp18yxAArtrVHDy/Q4gCER+wtpDh4PO/wexOHurm232wCN29wKDA1cLCs6BKHgnM LwqS/7OLq3UoC5TCcez7rQYmqTKXS9owUHv436PwVMlF6wbOp78HmZGjxCaDo0DF 6ZbV6bo2xjJ7+YsNd8Koqg2AQ38xtMmqAEV+QGfbi+KOtebm+gzPzGlNrhyPeqwe g7FWfKWoudwxptJrbXPE5Ajtc1YlU8GMhzrjkWkEES0yNlzDD/nEd1/j4AzvLRRh rn32GICIg8PACFghRHomAgp+bJ2+jOzeBH23t41DSBwLYhKitF9Uk3QIjUu001c9 cq7Zrj4cMwXGXJw4KTiH5CEzOUyJ0bxmt5QRCWjtEwJRhZxz6rvcXX6arKJWwwtd oPm4Gwdy8ePyq7TJPT2BqPn59XWDcHY3bRtJirGDDDCNBraSK3TgmkjhvN68L+AK y3HpaUH8/KziUYKiup1z6S+ebSlmnRboE7R1ADudyOKiotIaO8KwUZ5MZrs9flMj zbPCTeawfz7Ob8uMe30otZ9292/eMCElQ+277Z3AeU6QJCv9ddyIXsbMA7S5TtHg cPfL4guyXQfZXQOSUDjUe46VAfYwLRelCGsEVkg3gobmliElie47sLlLKPcZVEbF WMAuUztIF42flpAAJ/PDlLlaAQlZX/Qf4zVfA7mpFY4gozevSyI= =KMJi -----END PGP SIGNATURE----- --=-I6WaGIBxYMb+0D+okuMx--