From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from magic.merlins.org ([209.81.13.136]:52320 "EHLO mail1.merlins.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753096AbcBXB5E (ORCPT ); Tue, 23 Feb 2016 20:57:04 -0500 Date: Tue, 23 Feb 2016 17:56:58 -0800 From: Marc MERLIN To: Kenny MacDermid Cc: linux-btrfs@vger.kernel.org Message-ID: <20160224015658.GY22487@merlins.org> References: <20160224004045.GA20632@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <20160224004045.GA20632@gmail.com> Subject: Re: Input/Output errors Sender: linux-btrfs-owner@vger.kernel.org List-ID: On Tue, Feb 23, 2016 at 08:40:46PM -0400, Kenny MacDermid wrote: > I'm running btrfs on DM-Crypt Luks running on LVM. > > Occasionally I get files that are unreadable for some period of time. > Attempting to read from them results in an > > Input/output error > > Sometimes they'll come back on their own, and sometimes a scrub seems to > help, but sometimes I just have to delete them. > > Nothing shows up in dmesg when these occur, and I can't predict which > files it will be, or what causes it. > > It's currently happening running 4.4.1-2-ARCH, but I've seen the same > thing for many previous kernel versions. > > Does anyone have any suggestions? That's weird to say the least, you should at least get *something* in dmesg. And you are getting other error messages and btrfs kernel messages in your logs? When whatever app you have that's trying to read them fails, I assume they also fail with cat or less? Marc -- "A mouse is a device used to point at the xterm you want to type in" - A.S.R. Microsoft is to operating systems .... .... what McDonalds is to gourmet cooking Home page: http://marc.merlins.org/ | PGP 1024R/763BE901