I got the same thing today on a vmware virtual machine running Debian stable 2.6.32-5-amd64 #1 SMP.
ping still worked, but nothing else. The vmware console showed the same message about task bdi-default being blocked. -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org