umount problems

[Travis Fraser]

On Sun, 2004-06-27 at 14:24, Marcel Janssen wrote:
> On Sunday 27 June 2004 11:51, Christopher K. Johnson wrote:
> > Marcel Janssen wrote:
> > >Hi,
> > >
> > >I'm using a usb disk which I currently can not unmount. I get "device
> > > busy" messages although no process is using the disk (fuser doesn't show
> > > anything).
> > >
> > >Anyway I can force an unmount ?
> >
> > The problem is probably fam.
> > Try:
> > killall -HUP fam
> > Then unmount.
> 
> It wasn't fam.
> The problem simply disappeared, after 10 minutes I could unmount. Strange, 
> never seen this before. Must be something regarding the hotplug stuff I 
> guess.
> 
> Thanks,
> Marcel
> 
I have the same problem with a certain jumpdrive-sport usb2 key. The
mount/umount takes minutes and the process state code shows up in ps
with a "D" as I suppose the kernel is waiting for the I/O to finish. I
have an older usb1 jumpdrive that works fine though.

Travis Fraser