Hi list, i just compiled new htb and it seems to work fine. Anyway, it didn't work straight forward so i think maybe some of you might be interested in getting it to work. First, i had to remove two lines from sch_htb.c (the ones containing DEVIK, i guess they were used for profiling) After "make modules" i had to link it against lib/rbtree.o like this: ld -m elf_i386 -r -o /lib/modules/$(uname -r)/kernel/net/sched/sch_htb.o net/sched/sch_htb.o lib/rbtree.o After that i was able to insmod it. Bye, Patrick