Comment 34 for bug 274995

Well, it looks like it is related to network in a way.

I looked at var/log/syslog while trying to shutdown and when i asked for shutdown, I got this :

Oct 20 11:07:10 fred-laptop kernel: [ 214.557848] __ratelimit: 6 callbacks suppressed
Oct 20 11:07:10 fred-laptop kernel: [ 214.557875] compiz.real[5938]: segfault at 120 ip 000000000041024e sp 00007fff3fabc160 error 4 in compiz.real[400000+3b000]
Oct 20 11:07:11 fred-laptop init: tty4 main process (4660) killed by TERM signal
Oct 20 11:07:11 fred-laptop init: tty5 main process (4661) killed by TERM signal
Oct 20 11:07:11 fred-laptop init: tty2 main process (4667) killed by TERM signal
Oct 20 11:07:11 fred-laptop init: tty3 main process (4669) killed by TERM signal
Oct 20 11:07:11 fred-laptop init: tty6 main process (4670) killed by TERM signal
Oct 20 11:07:11 fred-laptop init: tty1 main process (5729) killed by TERM signal
Oct 20 11:07:11 fred-laptop NetworkManager: <info> (wlan0): device state change: 8 -> 3
Oct 20 11:07:11 fred-laptop NetworkManager: <info> (wlan0): deactivating device (reason: 38).
Oct 20 11:07:11 fred-laptop NetworkManager: <info> wlan0: canceled DHCP transaction, dhcp client pid 6104
Oct 20 11:07:11 fred-laptop kernel: [ 215.153613] wlan0: disassociating by local choice (reason=3)
Oct 20 11:07:11 fred-laptop kernel: [ 215.179213] wlan0: authenticate with AP 00:1a:6b:1b:15:e5
Oct 20 11:07:11 fred-laptop kernel: [ 215.186362] wlan0: authenticated
Oct 20 11:07:11 fred-laptop kernel: [ 215.186374] wlan0: associate with AP 00:1a:6b:1b:15:e5
Oct 20 11:07:11 fred-laptop kernel: [ 215.188443] wlan0: RX AssocResp from 00:1a:6b:1b:15:e5 (capab=0x411 status=0 aid=1)
Oct 20 11:07:11 fred-laptop kernel: [ 215.188449] wlan0: associated
Oct 20 11:07:11 fred-laptop NetworkManager: <WARN> check_one_route(): (wlan0) error -34 returned from rtnl_route_del(): Sucess
Oct 20 11:07:11 fred-laptop avahi-daemon[4926]: Withdrawing address record for 192.168.1.12 on wlan0.
Oct 20 11:07:11 fred-laptop avahi-daemon[4926]: Leaving mDNS multicast group on interface wlan0.IPv4 with address 192.168.1.12.
Oct 20 11:07:11 fred-laptop avahi-daemon[4926]: Interface wlan0.IPv4 no longer relevant for mDNS.
Oct 20 11:07:11 fred-laptop kernel: [ 215.205718] wlan0: disassociating by local choice (reason=3)

And a little later :

[Bluetooth shutdown]
Oct 20 11:07:16 fred-laptop kernel: [ 219.787126] Bluetooth: RFCOMM ver 1.10
Oct 20 11:07:16 fred-laptop avahi-daemon[4926]: Got SIGTERM, quitting.
Oct 20 11:07:17 fred-laptop exiting on signal 15

And when I took a screenshot, it was blocked on acpi exiting.

So I'm kinda lost. Anyway, I'm adding the log I have.