assertion failure at net/sched/sch_generic.c(530)

[David Brownell <david-b@xxxxxxxxxxx>]

After running some TTCP tests (unidirectional TTCP 9+ hours,
then bidirectional for about 8 hours more) over a network link,
I shut it down the usual way and got an unusual message.  I've
never seen this before; this is a recent 2.6.0-test5 BK snapshot
(a few days old):

  KERNEL: assertion (dev->qdisc_list == NULL) failed at
  net/sched/sch_generic.c(530)

Could someone please translate that for me -- trouble?

The interface was down at that point, and this was evidently
triggered by the unregister_netdev() that "rmmod" caused.

- Dave