From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Mueller Subject: Re: "VFS: Busy inodes after unmount of ceph" kernel-message after umount Date: Tue, 8 Jun 2010 08:34:50 +0000 (UTC) Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Return-path: Received: from lo.gmane.org ([80.91.229.12]:37774 "EHLO lo.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753438Ab0FHIfG (ORCPT ); Tue, 8 Jun 2010 04:35:06 -0400 Received: from list by lo.gmane.org with local (Exim 4.69) (envelope-from ) id 1OLuH0-0000K2-N2 for ceph-devel@vger.kernel.org; Tue, 08 Jun 2010 10:35:02 +0200 Received: from 80-219-106-215.dclient.hispeed.ch ([80.219.106.215]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 08 Jun 2010 10:35:02 +0200 Received: from thomas by 80-219-106-215.dclient.hispeed.ch with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 08 Jun 2010 10:35:02 +0200 Sender: ceph-devel-owner@vger.kernel.org List-ID: To: ceph-devel@vger.kernel.org Am Mon, 07 Jun 2010 22:21:33 -0700 schrieb Sage Weil: >> > On Sat, 5 Jun 2010, Thomas Mueller wrote: >> >> hi >> >> >> >> since running an new snapshot test* that creates some(many?) >> >> snapshots I get this kernel message on umount: >> >> >> >> VFS: Busy inodes after unmount of ceph. Self-destruct in 5 seconds. >> >> Have a nice day... >> >> >> >> this is with kernel 2.6.34 and ceph-client-standalone > > This turned out to be an MDS bug (not replying to snap flush messages, > leaving the inodes pinned). The server side is fixed in the unstable > and testing branches. The client should still be fixed to make some > noise about such problems. > > Thanks for that test script... being able to reliably reproduce the > problem made fixing it so much easier! > > sage thanks, verified that the message is gone. I noticed that it takes now longer to execute the script: test time now: 1300s test time before: 800-900s - Thomas