Date: Mon, 21 May 2007 19:12:01 +0200 From: Attila Nagy <bra@fsn.hu> To: freebsd-fs@freebsd.org Subject: softdep_waitidle: Failed to flush worklist Message-ID: <4651D2E1.6090100@fsn.hu>
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Hello, I have some read only NFS servers, which share a virtual IP (with CARP) to provide fault resilience. One of them is the master server, on which I occasionally modify the NFS share's content. To make this possible, I have a real UFS file system, on which I have a smaller file. This holds the file system image, which I rsync to the other servers, if needed. The setup: # mdconfig -lu 0 md0 vnode 19G /data/nfsimg # mount | grep nfs /dev/md0 on /nfs (ufs, NFS exported, local, soft-updates) The modify process is like this: #mount -o rw -u /nfs [modify content] #mount -o ro -u /nfs [rsync /data/nfsimg to the other machines] This has worked like a charm until now. Since I've upgraded the OS to RELENG_6 as of today, I get the following line into the syslog everytime I modify something on /nfs and want to do a read only remount: softdep_waitidle: Failed to flush worklist for 0xffffff0054e00630 and the remount command (mount -o ro -u /nfs) fails with: mount: /dev/md0: Device busy Before the upgrade (RELENG_6 from Sep 29 2006), I couldn't notice this behaviour, so something must have changed in the last 3/4 year. :) Of course I can turn softupdates off, but it would be interesting to know what causes this difference... -- Attila Nagy e-mail: Attila.Nagy@fsn.hu Free Software Network (FSN.HU) phone: +3630 306 6758 http://www.fsn.hu/
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