On 01/30/2011 05:55 PM, Terry Barnaby wrote: > On 01/30/2011 02:11 PM, JB wrote: >> JB<jb.1234abcd<at> gmail.com> writes: >> >>> >>> # ################################################################ >>> # debugging snapshot statements >>> # ---------------------------------------------------------------- >>> date>> /halt.debug >>> cat /etc/mtab>> /halt.debug >>> cat /proc/mounts>> /halt.debug >>> # ################################################################ >>> >> >> I think correction is needed as /proc is not available any more because it >> was unmounted immediatelly prior to our debugging statements. >> So, remove that: >> cat /proc/mounts>> /halt.debug >> >> JB >> >> > I added the debug, and basically it was the same when it shutdown cleanly > and when it failed. > > # A bad one > Sun Jan 30 17:12:08 GMT 2011 > /dev/sda1 / ext4 rw 0 0 > proc /proc proc rw 0 0 > sysfs /sys sysfs rw 0 0 > Mount: > /dev/sda1 on / type ext4 (rw) > proc on /proc type proc (rw) > sysfs on /sys type sysfs (rw) > fstab-decode mount -n -o ro,remount /dev/sda1 / > fstab-decode mount -n -o ro,remount proc /proc > fstab-decode mount -n -o ro,remount sysfs /sys > > # A good one, / has been remounted ro and so the last two unmount messages are > not present > Sun Jan 30 17:18:16 GMT 2011 > /dev/sda1 / ext4 rw 0 0 > proc /proc proc rw 0 0 > sysfs /sys sysfs rw 0 0 > Mount: > /dev/sda1 on / type ext4 (rw) > proc on /proc type proc (rw) > sysfs on /sys type sysfs (rw) > fstab-decode mount -n -o ro,remount /dev/sda1 / > > I put a /bin/sh after this so I could have a look at the systems state at this > point when the remount failed. The last few items of the "ps ax" list is shown: > > 1282 ? S 0:00 [rpciod/1] > 1378 ? S 0:00 [nfsiod] > 1381 ? S 0:00 [lockd] > 1960 ? D 0:00 [flush-0:19] > 2006 ? Zl 0:00 [akonadi_control]<defunct> > 2008 ? Z 0:00 [akonadiserver]<defunct> > 2010 ? Zl 0:00 [mysqld]<defunct> > 2125 ? Ds 0:00 [pulseaudio] > 2332 ? Z 0:00 [gconf-helper]<defunct> > 2365 ? D 0:00 [dcopserver] > 2448 ? Ss 0:00 /bin/bash /etc/rc0.d/S01halt start > 3001 ? S 0:00 /bin/sh > 3019 ? R 0:00 ps ax > > It looks like some processes are left over from the GUI (KDE). > I suspect they have log files or something else opened on / > in write mode and this is stopping the remount to ro working. > Running "mount -o remount,ro /" at this point fails with "/ is busy". > They are probably waiting for /home, which is an NFS files system, that > was unmounted earlier on in the shutdown process. > I restarted the network and netfs and these processes disappeared. After > shuting down netfs and network as well as some other processes left over > the remount command worked fine and the system shutdown. > > Note I am using the "network" not "NetworkManager" service. The NetworkManager > service does not work well for me with systems using networked /home and > other file systems. > > I suspect an issue further up the shudown chain where the system should > wait for all of the processes to shutdown "before" unmounting the NFS files > systems. I will have a look here, any ideas ? > > Terry > I am guessing this is primarily a KDE problem (although the system should still shutdown cleanly even if processes are still there waiting on NFS). I presume the KDE shutdown should wait for all of its processes to complete exit before it asks init to shutdown the system ... Terry -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
