System hangs on shutdown/reboot at unmounting

[caraniente]

Hi all,

Just installed F16 (dual-boot with Windows 7) on a new workstation. Seem to have ironed out most of the starting troubles except one thing.

At shutdown or reboot (whether via the GUI or terminal using shutdown -P) the system hangs. I get a black screen, upon hitting ESC I see:

Sending SIGTERM to remaining processes...
Sending SIGKILL to remaining processes...
Unmounting file systems...
Unmounted /sys/fs/fuse/connections
Unmounted /sys/kernel/debug
Unmounted /dev/hugepages
Unmounted /dev/mqueue
Unmounted /sys/kernel/security

...and then nothing happens - even tried leaving it when I went home last night in the hope it was just taking an inordinate amount of time. I have to do a hard shutdown.

After reading around a bit I tried using systemctl poweroff -f to shutdown - hung at the same point, but added the following lines in between SIGTERM and SIGKILL:
Network Manager: <info> exiting (success)
systemd-cgroups-agent: Failed to get D-Bus connection: Failed to connect to socket /org/freedesktop/systemd1/private: connection refused

I only installed Fedora on Friday and the reboot after the install also hung in the same way, so I don't think it's anything I've installed. I'm guessing from the error messages that this is likely a systemd problem?

I'm running a Dell T1600 workstation, with an Intel Xeon 1270 processor and 8Gb RAM, with 2 SATA drives set up in a RAID1 array.

Can anyone help? I'm a bit of linux noob, having used ubuntu via work before but never set up systems myself - I've spent hours on Google trying to find an answer and failed miserably :P

Any help appreciated!

Cheers,
~cara

[arvidsson]

I'm experiencing exactly the same problem - did you find the solution?

[caraniente]

No - hours on google reading everything about shutdown failures ever written but no help forthcoming thus far

One of our local bioinformatics experts is hopefully coming by to look at it later, so if he comes up with anything I'll pass it on!

[arvidsson]

Ok, I'll try to debug my machine as well - I'll let you know if I can fix it...

[vomisan]

This bug report may be related to your problem https://bugzilla.redhat.com/show_bug.cgi?id=751060

[Mariusz W]

Originally Posted by caraniente

I'm running a Dell T1600 workstation, with an Intel Xeon 1270 processor and 8Gb RAM, with 2 SATA drives set up in a RAID1 array.

The RAID array seems to be the reason why you are experiencing this problem. It is of course always disconcerting when the computer doesn't power off. In my experience however, if you reboot without file system errors, then probably you should be living with it for a while until a future update eliminates the problem that indeed has already been reported at the RedHat bugzilla.