Comment 3 for bug 665580

I have the same problem on a Mythbuntu 10.10 machine with apt 0.8.3ubuntu7. Here's what the process tree looks like:

  |-anacron,22094 -s
  | `-sh,22162 -c nice run-parts --report /etc/cron.daily
  | `-run-parts,22164 --report /etc/cron.daily
  | `-apt,22170 /etc/cron.daily/apt
  | `-apt-get,22487 -qq -y update
  | |-bzip2,22499
  | |-cdrom,22491
  | |-gpgv,22494
  | `-http,22490

I can confirm that this problem comes back later on even if I kill apt-get (probably because the script is scheduled to run daily).