Hi Jan, Thanks for reporting this issue. I think you are correct - nm looks like the culprit. Re-assigning...
** Package changed: upstart (Ubuntu) => network-manager (Ubuntu) -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1207848 Title: Shutdown takes an unusual amount of time Status in “network-manager” package in Ubuntu: New Bug description: Hello, my system takes a rather long time to shutdown (~7-10 sec.) while there are often error messages flashing on the screen like: - Killing all remaining processes failed - Mount: / is busy To investigate the problem, I patched my /etc/init.d/umountfs and umountroot scripts with the proposed changes from https://code.launchpad.net/~jamesodhunt/ubuntu/saucy/sysvinit/log- processes-and-open-files-on-shutdown/+merge/163740 to log open files at shutdown and attached the resulting shutdown-lsof.log here. The only thing in that log that looks suspicious to me are the ones regarding dhclient: dhclient 5786 1 0 cwd DIR 252,5 4096 2 / dhclient 5786 1 0 rtd DIR 252,5 4096 2 / dhclient 5786 1 0 txt REG 252,5 1659968 654751 /sbin/dhclient dhclient 5786 1 0 mem REG 252,5 52168 786517 /lib/x86_64-linux-gnu/libnss_files-2.17.so dhclient 5786 1 0 mem REG 252,5 1848024 786477 /lib/x86_64-linux-gnu/libc-2.17.so dhclient 5786 1 0 mem REG 252,5 149312 786464 /lib/x86_64-linux-gnu/ld-2.17.so dhclient 5786 1 0 4w REG 252,5 1058 21443 /var/lib/NetworkManager/dhclient-8f9a3dff-24e6-4374-b0b2-c38524cdc0ce-eth0.lease Maybe there is some problem shutting down NetworkManager? I found the respective dhclient entries on two separate shutdown logs. Kind regards, Jan ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: upstart 1.8-0ubuntu1 ProcVersionSignature: Ubuntu 3.8.0-25.37-generic 3.8.13 Uname: Linux 3.8.0-25-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.9.2-0ubuntu8.3 Architecture: amd64 CheckboxSubmission: b37fefbc97df4ba6a5f7edd504648fe4 CheckboxSystem: 4ed15c40009aa6f7770f606350a390a2 Date: Fri Aug 2 19:30:06 2013 InstallationDate: Installed on 2013-04-10 (114 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20130410) MarkForUpload: True ProcKernelCmdline: BOOT_IMAGE=/boot/vmlinuz-3.8.0-25-generic root=/dev/mapper/internal--ssd-root ro quiet SourcePackage: upstart UpgradeStatus: No upgrade log present (probably fresh install) UpstartBugCategory: System modified.conffile..etc.at.deny: [inaccessible: [Errno 13] Keine Berechtigung: '/etc/at.deny'] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1207848/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
