On Thu, 2008-31-01 at 13:21 +0100, Andi Kleen wrote:

I just managed to hang a 2.6.24 (+ some non network patches) kernel 
with the following (non sensical) command

tc qdisc add dev eth0 root tbf rate 1000 burst 10 limit 100

No oops or anything just hangs. While I understand root can
do bad things just hanging like this seems a little extreme.

---------
lilsol:~# tc qdisc add dev eth0 root tbf rate 1000 burst 10 limit 100
lilsol:~# uname -a
Linux lilsol 2.6.24 #1 PREEMPT Sun Jan 27 09:22:00 EST 2008 i686
GNU/Linux
lilsol:~# tc qdisc ls dev eth0
qdisc tbf 8001: root rate 1000bit burst 10b lat 737.3ms
lilsol:~#
-------

What do your patches do?

cheers,
jamal