From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.virtall.com ([178.63.195.102]:55931 "EHLO mail.virtall.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753210AbcHEOoI (ORCPT ); Fri, 5 Aug 2016 10:44:08 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Date: Fri, 05 Aug 2016 23:44:04 +0900 From: Tomasz Chmielewski To: Chris Mason Cc: linux-btrfs Subject: Re: Input/output error, nothing appended in dmesg In-Reply-To: <9fdb317f-9209-d1a7-3e1e-7ab4f5b09c8d@fb.com> References: <9fdb317f-9209-d1a7-3e1e-7ab4f5b09c8d@fb.com> Message-ID: Sender: linux-btrfs-owner@vger.kernel.org List-ID: On 2016-08-05 23:26, Chris Mason wrote: > On 08/05/2016 07:42 AM, Tomasz Chmielewski wrote: >> I'm getting occasional (every few weeks) input/output errors on a >> btrfs >> filesystem with compress-force=zlib, running on Amazon EC2, with 4.5.2 >> kernel: >> >> # cat 2016-08-02/serverX/syslog.log >> cat: 2016-08-02/serverX/syslog.log: Input/output error > > How big is the file? We had one bug with inline files that might have > caused this. This one's tiny, 158137 bytes. Tomasz Chmielewski https://lxadm.com