You need to provide kernel logs. Firstly, the boot log might provide some clues, so please send /var/log/dmesg.
Also try using netconsole <http://www.kernel.org/doc/Documentation/networking/netconsole.txt> or serial console <http://www.kernel.org/doc/Documentation/serial-console.txt> to capture any messages that appear around the time the system hangs. Ben. -- Ben Hutchings We get into the habit of living before acquiring the habit of thinking. - Albert Camus -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org