Comment 32 for bug 293970

I get the same in /var/log/messages, except it results in a system freeze. Ctrl-Alt-F1 to change to console doesnt work. Only solved by a hard reset. Happens several times a week on my Dell Dimension 5100 with USB KVM. This is the standard pattern:

Jul 4 09:43:08 dell5100 bonobo-activation-server (...): could not associate with desktop session: Failed to connect to socket /tmp/dbus-x8SPI7a7nG: Connection refused
Jul 4 09:43:15 dell5100 kernel: [98471.116403] nfsd: last server has exited, flushing export cache
Jul 4 09:43:15 dell5100 exiting on signal 15
Jul 4 09:44:10 dell5100 syslogd 1.5.0#5ubuntu3: restart.

Sometimes I get this bdl_pos_adj message before:

Jul 1 06:49:23 dell5100 kernel: [ 599.843086] hda-intel: IRQ timing workaround is activated for card #0. Suggest a bigger bdl_pos_adj.
Jul 1 06:49:25 dell5100 bonobo-activation-server (...): could not associate with desktop session: Failed to connect to socket /tmp/dbus-kWRagllOEu: Connection refused
Jul 1 06:49:29 dell5100 kernel: [ 606.156863] nfsd: last server has exited, flushing export cache
Jul 1 06:49:31 dell5100 exiting on signal 15
Jul 1 06:50:25 dell5100 syslogd 1.5.0#5ubuntu3: restart.

Happens far too often, so it's a real pain. Would pay to see this fixed.