Net dies after many torrent packets, BUG?!

nocturnal nocturnal at
Thu Jun 1 13:56:03 PDT 2006


Not sure how to answer your question but the network dies in a way that 
i can't send any packets out or recive any packets in. What usually 
helps is to run dhclient fxp0 on my card again. My friend said he used 
to bring the card down and then up again and it would solve the issue.

Med vänliga hälsningar

Stefan Midjich aka nocturnal

Nikos Vassiliadis wrote:
> On Thursday 01 June 2006 16:30, nocturnal wrote:
>> Hi
>> One thing i should have mentioned is that this only happens with
>> rtorrent. For example i can transfer in 10Mbit+(not much plus) from
>> work, where i have no bandwidth restriction, for hours without problems.
>> Using scp, i have not tried with ftp and very large files. When i
>> transfer large files from work with scp i can maintain a speed of
>> 10Mbit+ for long periods of times without problems. This problem has
>> only happened because of rtorrent using a lot of bandwidth. And as i
>> said earlier it happens when using less bandwidth to.
> Is you computer behing a dsl modem/router which does NAT?
> Sometimes modem/routers cannot handle the number of connections
> torrents do and die. And most of the time you cannot have a clue, everything
> will look normal, but it won't do NAT.
> Also, what do mean when you say "net dies"? Do you mean internet dies
> or your LAN dies?
>> Med vänliga hälsningar
>> Stefan Midjich aka nocturnal
>> [Swehack]
>> Lowell Gilbert wrote:
>>> nocturnal <nocturnal at> writes:
>>>> Not sure if this is already posted or already reported as a bug
>>>> because i honestly don't have time for those things.
>>>> I have reproduced this problem a few times but it has some special
>>>> requirements. For example i download a torrent from a very fast peer
>>>> in the rtorrent client. I have reproduced this with both rTorrent
>>>> 0.4.5 -
>>>> libTorrent 0.8.5 and two earlier versions which i don't remember. My
>>>> friend is using the same versions as i am now and reported no problems
>>>> in the latest development versions, he only started using them
>>>> today. I have a 10/10Mbit connection at home and this happens when
>>>> rtorrent is downloading at max speed. It varies somewhere around
>>>> 7-10Mbit but never over 10Mbit by much. My friend only has a capacity
>>>> of 1Mbit but got the same problem.
>>>> This is why i'm reporting this because if it turns out that this can
>>>> be reproduced by sending speciall crafted packets or packets in a
>>>> special order then i guess it's pretty serious. I highly doubt this
>>>> but still, a user process should not kill the net like rtorrent has
>>>> done.
>>>> Both me and my friend were running FreeBSD 6.0 RELEASE when this
>>>> happened.
>>>> I was not going to report this but a friend just told me he gets the
>>>> exact same results on FreeBSD 6.0 so i felt i should tell someone.
>>> Do you have good NICs?
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