From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.virtall.com ([178.63.195.102]:45149 "EHLO mail.virtall.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754029AbcHEPij (ORCPT ); Fri, 5 Aug 2016 11:38:39 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Date: Sat, 06 Aug 2016 00:38:35 +0900 From: Tomasz Chmielewski To: Chris Mason Cc: linux-btrfs Subject: Re: Input/output error, nothing appended in dmesg In-Reply-To: <98e070f7-2787-9df4-c1b8-ae8005c039ec@fb.com> References: <9fdb317f-9209-d1a7-3e1e-7ab4f5b09c8d@fb.com> <98e070f7-2787-9df4-c1b8-ae8005c039ec@fb.com> Message-ID: Sender: linux-btrfs-owner@vger.kernel.org List-ID: On 2016-08-06 00:15, Chris Mason wrote: >>>> # 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. > > Too big for the known problem though. Still, can you btrfs-debug-tree > and just make sure it doesn't have inline items? Hmmm.... # btrfs-debug-tree /dev/xvdb > /root/debug.tree parent transid verify failed on 355229302784 wanted 49943295 found 49943301 parent transid verify failed on 355229302784 wanted 49943295 found 49943301 Ignoring transid failure parent transid verify failed on 355233251328 wanted 49943299 found 49943303 parent transid verify failed on 355233251328 wanted 49943299 found 49943303 Ignoring transid failure print-tree.c:1105: btrfs_print_tree: Assertion failed. btrfs-debug-tree[0x418d99] btrfs-debug-tree(btrfs_print_tree+0x26a)[0x41acf6] btrfs-debug-tree(main+0x9a5)[0x432589] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5)[0x7f2369de0f45] btrfs-debug-tree[0x4070e9] Tomasz Chmielewski https://lxadm.com