More on umount problems on shutdown

[David Baron <d_baron@012.net.il>]

Several posters, including myself, have cited problems umounting the file 
systems on shutdown with recent 2.6.8 kernels. This may be caused by timing 
problems leaving the file systems busy. I got rid of the error messages and 
got almost all clean file systems on restart by using umount -l ("lazy 
umount") and a sleep to let things settle down.

One of the file systems is ALWAYS recovering its journal on restart (mounts 
to /usr/share). It is found clean and everything is OK, but ...

I tried a sync before umount. Did not help. In the umountfs script, it might 
be too late since all processes have been killed off. The journal service for 
each FS is a process, is it not? So I put the sync, followed by a sleep, in 
the script before the killall's. Did not help there either.

Any other ideas?