Patrick McHardy wrote:

> Szymon Miotk wrote:
>
>> This mail was posted 02-11-2004 to linux-net@vger.kernel.org, but I 
>> got no response at all, so I am resending it.
>>
>> [1.] One line summary of the problem:
>> IProute hangs after running traffic shaping scripts
>
>
> Can you test if this patch helps please ? It immediately removes all
> inner qdiscs of classful qdiscs from dev->qdisc_list, making it
> impossible for anyone to look up an inner qdisc that is about to get
> destroyed. Taking qdisc_tree_lock in qdisc_lookup is not really
> necessary with this patch anymore, since all changes to dev->qdisc_list
> happen under the rtnl again (which is also relied on for memory). I put
> it in anyways for now until I have fully analyzed locking.

Please test this patch, the last one had a bug.

>
> Regards
> Patrick
>