From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Priebe Subject: FS / Kernel question choosing the correct kernel version Date: Sat, 23 Jun 2012 20:26:45 +0200 Message-ID: <4FE60A65.2030800@profihost.ag> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mail.profihost.ag ([85.158.179.208]:53143 "EHLO mail.profihost.ag" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755305Ab2FWS0o (ORCPT ); Sat, 23 Jun 2012 14:26:44 -0400 Sender: ceph-devel-owner@vger.kernel.org List-ID: To: "ceph-devel@vger.kernel.org" Hi, i got stuck while selecting the right FS for ceph / RBD. XFS: - deadlock / hung task under 3.0.34 in xfs_ilock / xfs_buf_lock while syncfs - under 3.5-rc3 all my machines got loaded doing nothing than waiting for XFS / SSDs so ceph is really slow / unuseable btrfs: - 3.5-rc3 ceph is pretty fast and works good until i see also a deadlock while doing heavy random I/Os in my rbd / kvm. All processes hang in btrfs_commit_transaction or btrfs_commit_transaction_async Are there tested / recommanded kernel versions for rbd and a specific fs. Greets Stefan