Comment 31 for bug 475410

I also have this problem only on 9.10, all previous Ubuntu versions (since 4.04) worked well but it happens every time I shutdown (or restart) my laptop.

Additionally, I also get the following messages:

Nov 8 20:07:19 ubuntu kernel: [19808.392380] INFO: task halt:5464 blocked for more than 120 seconds.
Nov 8 20:07:19 ubuntu kernel: [19808.392418] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.

I'm not sure if it's the same problem but if so, would it be beneficial for me to also provide the output of any debugging commands?