From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wido den Hollander Subject: Re: Truncated file on posix mount Date: Fri, 15 Jun 2012 13:32:12 +0200 Message-ID: <4FDB1D3C.1040309@widodh.nl> References: <4FDB03CD.5010202@opera.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from smtp02.mail.pcextreme.nl ([109.72.87.138]:54132 "EHLO smtp02.mail.pcextreme.nl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754076Ab2FOLcP (ORCPT ); Fri, 15 Jun 2012 07:32:15 -0400 In-Reply-To: <4FDB03CD.5010202@opera.com> Sender: ceph-devel-owner@vger.kernel.org List-ID: To: sverre stoltenberg Cc: ceph-devel@vger.kernel.org Hi, On 15-06-12 11:43, sverre stoltenberg wrote: > I have a ceph posix mount for openstack instances, and have found some > of my kernels truncated. It looks rather random, and I have not found a > way to reproduce it, but it will happen from time to time with normal use. > Can you share the following information? - Kernel version - Ceph version - "ceph -s" output The MDS / POSIX filesystem hasn't been tested very well at the moment, in the next sprint (starting soon) the developers will start focusing on the POSIX filesystem. Thanks, Wido > the 5e...aa checksum is the correct one. > > root@t06-16:/var/lib/nova/instances# md5sum */kernel > 3e0a48130ddb8bfe88239df05c073a0b instance-00000001/kernel > 5e9463bd77757a3889a1d9758b2b94aa instance-0000000f/kernel > 5e9463bd77757a3889a1d9758b2b94aa instance-00000010/kernel > 5e9463bd77757a3889a1d9758b2b94aa instance-00000011/kernel > 5e9463bd77757a3889a1d9758b2b94aa instance-00000012/kernel > 5e9463bd77757a3889a1d9758b2b94aa instance-00000013/kernel > 3e0a48130ddb8bfe88239df05c073a0b instance-00000014/kernel > > root@t06-16:/var/lib/nova/instances/instance-00000001# stat kernel > File: `kernel' > Size: 2097152 Blocks: 4096 IO Block: 4194304 regular file > Device: 0h/0d Inode: 1099511627899 Links: 1 > Access: (0664/-rw-rw-r--) Uid: ( 109/libvirt-qemu) Gid: ( 111/ kvm) > Access: 2012-06-13 11:56:56.462433802 +0200 > Modify: 2012-06-04 11:47:17.730781000 +0200 > Change: 2012-06-04 11:47:17.730781000 +0200 > Birth: - > > root@t06-16:/var/lib/nova/instances/instance-00000010# stat kernel > File: `kernel' > Size: 2424448 Blocks: 4736 IO Block: 4194304 regular file > Device: 0h/0d Inode: 1099511627989 Links: 1 > Access: (0664/-rw-rw-r--) Uid: ( 109/libvirt-qemu) Gid: ( 111/ kvm) > Access: 2012-06-13 09:44:03.779892491 +0200 > Modify: 2012-06-13 09:43:47.178125000 +0200 > Change: 2012-06-13 09:44:00.020102878 +0200 > Birth: - >