I've found a solution to this bug for me (the reporter) so if problems
still remain it may be a good idea to open a new bug for your problem.
Main problem: reboot/shutdown hangs with either "acpid: exiting" or "nm-
system-settings: SCPlugin-Ifupdown: devices removed (udi:
/or/freedesktop/Hal/devices/net..." and nothing can persuade the compute
to complete side from a hard power cycle
Primary cause (for me): nfs mounts in nested folders (i.e.
/mnt/remote1/remote2)
Solution: move nfs mount locations to non-nested folders (i.e.
/mnt/remote1, /mnt/remote2)
Further detail: Essentially my /etc/fstab mounts two remote filesystems
in the following manner: mount remote1 to /mnt/remote1, then mount
remote2 to /mnt/remote1/remote2. This works fine as long as the first
nfs filesystem has a remote2 directory. However, on shutdown or reboot
when unmounting the system tries to unmount /mnt/remote1 and fails
because /mnt/remote1/remote2 is still mounted. Then it unmounts
/mnt/remote1/remote2 which succeeds but it never attempts to unmount
/mnt/remote1 again and thus we're left hanging waiting for all
filesystems to be unmounted.
I hope this sheds some light on the problem for others. This doesn't so
much seem to be a bug as it is a misunderstanding about how (not) to
mount network filesystems.
I will be removing the binary package hint since this has nothing to do
with acpid.
** Description changed:
- Binary package hint: acpid
-
After reports and resolutions for many similar bugs (bug #288863, bug
#126140, and bug #274995) none of those bugs or their resolutions have
fixed the hang experienced during shutdown and reboot in Intrepid Ibex
beginning near kernel release 2.6.27-5.
On occasion after Splashy times out or by pressing ctrl-alt-F7 or ctrl-
alt-F8 I will see "acpid: exiting..." with a flashing cursor and no
activity. No amount of waiting ever allows the shutdown/restart process
to complete, only a hard reset or shutdown is successful.
Description: Ubuntu 8.10
Release: 8.10
acpid:
Installed: 1.0.6-9ubuntu4
Candidate: 1.0.6-9ubuntu4
Version table:
*** 1.0.6-9ubuntu4 0
500 http://ubuntu.media.mit.edu intrepid/main Packages
100 /var/lib/dpkg/status
uname -a
Linux lightyear 2.6.27-10-generic #1 SMP Fri Nov 21 19:19:18 UTC 2008 x86_64
GNU/Linux
--
jaunty and intrepid shutdown/restart hang on "acpid: exiting"
https://bugs.launchpad.net/bugs/302452
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