i found that this problem occurs in linux2.4.18. i tried both linux2.4.17 and 
linux2.4.19pre9, both of them have no such problem.

in linux2.4.19pre1,it works well most of the time,but sometimes it fails. when i check 
the status with "brctl showstp bridge",if one of the interface shows "blocking",then 
when try to stop the bridge ,the system also hung there.

but i cann't find our which patch solve the problem, anyone familiar with that?  i 
wish i could find out the solution.

regards,
zheng chuanbo

> is there some bugs with the bridge on linux2.4.18? when i use brctl to
>build the bridge,it works.and the hosts can communicate with the host on the
>other side of the bridge. but when i tried to stop the bridge with cmd
>"brctl delif bridge eth0",it always hung there. if i plugged off all the
>cables,the bridge can also be stopped without any problems.
> the bridge also worked well when i use linux2.4.13,so is there some bugs
>in linux2.4.18? how to solve problem.
>
>I noticed the same thing a few times but I've been unable to track it down.
>It seems like brctl is waiting on a lock which it never gets and there is no
>timeout.
>
>Best regards,
>Adam



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