From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mout.gmx.net ([212.227.17.20]:60638 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750885AbcEGPW0 (ORCPT ); Sat, 7 May 2016 11:22:26 -0400 Received: from thetick.localnet ([93.181.44.247]) by mail.gmx.com (mrgmx103) with ESMTPSA (Nemesis) id 0MWCKz-1bAS4E0wdV-00XNrG for ; Sat, 07 May 2016 17:22:23 +0200 From: Marc Joliet To: linux-btrfs@vger.kernel.org Subject: Re: random i/o error without error in dmesg Date: Sat, 07 May 2016 17:22:13 +0200 Message-ID: <2609832.j3xfNZhHBD@thetick> In-Reply-To: <1892242.Gv7fI7HlO2@thetick> References: <562E0D31.2080003@dblaci.hu> <5339076.FcC2BAjqs5@thetick> <1892242.Gv7fI7HlO2@thetick> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart2975475.fkG31Xn4XU"; micalg="pgp-sha256"; protocol="application/pgp-signature" Sender: linux-btrfs-owner@vger.kernel.org List-ID: --nextPart2975475.fkG31Xn4XU Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Am Saturday 07 May 2016 schrieb Marc Joliet >I'm thinking of filing=20 >a bug report with dovecot; perhaps none of their devs test with btrfs?= So I did this, and got a little bit of feedback. Quoting from the repl= y I=20 got: "*.index.log files are always appended to using O_APPEND flag. Maybe th= is is=20 relevant. Also when a new .log file is created it's opened without the O_APPEND f= lag and=20 the O_APPEND is added later. This was causing a bug recently in unionfs= , which=20 ignored the flag change and caused log file corruption." The other bit of advise was to stress test dovecot using imaptest, but = I'll=20 have to do that when I have more time. Greetings =2D-=20 Marc Joliet =2D- "People who think they know everything really annoy those of us who kno= w we don't" - Bjarne Stroustrup --nextPart2975475.fkG31Xn4XU Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part. Content-Transfer-Encoding: 7Bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAABCAAGBQJXLggtAAoJEL/Q5oYsiHj0M3UP/RKl1tk9O7a1w6lx7DpOHi26 Ro9ggJ+YIC09Qdu8OBveHKEimOoC6LQTLxXT/qgOWxN4uN7BMyKRTNhQwXKzMnTs 5DOMeekS+hBbTuvKzLoSvyan/KFRp4S4c5scIsHis74w+d8KIAQhM4ji+y8Ps4m7 6ImyjVrfJ3u8+qguOR4ZfUjcPNX+SxlhMLCtuMMwbe+zzliwRxYU52iTHg8iy3jX PCIHpfcVc9Ovlvt7mOuv2mLzeZwUqvE9R+6Zqv1hLlHBYu0pPZErYjcFQIbSp07+ T6g+UfLSWYP6pvKJZP2ZSF4Vw631wtidD/kJpiCZUbfJu2gVu6UKa2MC3xNJH5YE n5Ti0SQBzVhE3RsMuhUIxQbQt4qg3xkak9772efMMjQNhvJh9D76vsMlt8j5FM5R foHExt/mO9AzRAmytI2qlHBV9WdQBuAMu47E5MiuzQOJAGhJG95BSiV7LH8nJDuT 8kan+nFNFwyT8xv7yGW2HKk8GhetvFqoZajTmaDSJNUlvZaB7cqpcO3dzlgS6172 umFjxJaTPFZ4PUIUH1L5eWUtnb7zhirZ9YK7yiGdLxV3tfdoYo/mmy/G2Yr9DOoy D1euHAQgaphV2Nlan/HDbuz8qdqIpS175vq9/Bg6UdzDPr6y9HcCdmUsXcEyMjhY Kz+ZW3TTL8/mN1dQ3cdH =Mm6w -----END PGP SIGNATURE----- --nextPart2975475.fkG31Xn4XU--