Comment 27 for bug 769927

i am seeing this crash after every timeout and umount in autofs. changed my timeout from 60 to 3600 and i still see the problem

Linux box05 2.6.38-10-server #46~lucid1-Ubuntu SMP Wed Jul 6 20:19:32 UTC 2011 x86_64 GNU/Linux

installed
linux-image-server-lts-backport-natty 2.6.38.10.20
linux-image-2.6.38-10-server 2.6.38-10.46~lucid1

i have symlinks in my home directory to a /net/anotherHost/export , so they always trigger a mount when i log in

I am using these options in auto.net
opts="-fstype=nfs,hard,intr,nodev,nosuid"

and /etc/default/autofs
TIMEOUT=3600
UMOUNT_WAIT=15

once i get this bug, i can see in pstree, automount is hung on an umount.nfs and mount.nfs commands
and then i can't shutdown my computer cleanly, the shutdown screen hangs forever after
unexporting nfs directories. even if i try and shutdown before the bug is trigged, it gets triggered at shutdown

thus, i never get to umount my root filesystems, and all that joy. i can't figure out a way to get the system back in order, after the bug is triggered.