nautilus freeze when mounted sshfs-share is gone

[Gerrit Addiks]

We have a development-server which is locally mounted via the following line in fstab:

sshfs#<email address hidden>:/ /media/develop fuse uid=1234,gid=1001,umask=0,allow_other,user,noauto,workaround=rename,intr 0 0

On the same mounted server is a dns-server and avahi-deamon running, which i use on this machine.

it works properly as long everything keeps working.
But we have an instable server, which is crashing sometimes. (we dont know why, but it has nothing to do with this bug)
When the server crashes while the mount above is still mounted, nautilus (including gnome-panel etc) hangs and isnt reacting to anything i do. I cannot even create new nautilus instances.

The only way of getting it back to work is killing every application still using that share, "umount -f" it, changing the network-connection (because of the dns-server above) and restarting nautilus. Sometimes this "workaround" is leaving zombies on my system which i can only get rid of by rebooting.

I dont think that this is supposed to happen.

Description: Ubuntu 10.04.2 LTS
Release: 10.04

i dont really know which packages are involved, so i only post nautilus and sshfs for now.

nautilus:
  Installiert: 1:2.30.1-0ubuntu1.1
  Kandidat: 1:2.30.1-0ubuntu1.1
  Versions-Tabelle:
 *** 1:2.30.1-0ubuntu1.1 0
        500 http://de.archive.ubuntu.com/ubuntu/ lucid-updates/main Packages
        100 /var/lib/dpkg/status
     1:2.30.0-0ubuntu4 0
        500 http://de.archive.ubuntu.com/ubuntu/ lucid/main Packages

sshfs:
  Installiert: 2.2-1build1
  Kandidat: 2.2-1build1
  Versions-Tabelle:
 *** 2.2-1build1 0
        500 http://de.archive.ubuntu.com/ubuntu/ lucid/main Packages
        100 /var/lib/dpkg/status

[gunwald (gunwald)]

I have the same problem. I am using sshfs often to mount some remote discs on my local machine. When ever the network connection to one of the remote machines from which I had mounted something, nautlilus hangs. It does not react any more in any manner. So the only thing that gets me out of that is, to force unmount with:

either umount -f or fusermount -u -z

that could lead in loosing important data.

In my opinion this is a very serious bug because it prevents me from using sshfs