[LARTC] RTNETLINK answers: invalid argument

[Ana Carolina Alonso <aalonso@xxxxxxxxxxxxx>]

Hello, I had configure my router linux which has Suse 7.2, kernel 2.4.21.
I had installed the QoS support into the kernel. When I run the comand tc 
to create a CBQ qdisc, this work very well, but when I run tc to create the 
HTB qdisc  I receive next message:

RTNETLINK answers: Invalid argument

when my comand is:

 tc qdisc add dev eth0 root handle 1:htb

Thanks in advance!