From: Jan Kiszka <jan.kiszka@web.de>
To: Johannes Berg <johannes@sipsolutions.net>
Cc: Jiri Benc <jbenc@suse.cz>, Ivo Van Doorn <ivdoorn@gmail.com>,
linux-wireless <linux-wireless@vger.kernel.org>
Subject: Re: d80211: How does TX flow control work?
Date: Thu, 29 Mar 2007 10:45:30 +0200 [thread overview]
Message-ID: <460B7CAA.4020604@web.de> (raw)
In-Reply-To: <1175029130.5151.6.camel@johannes.berg>
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Johannes Berg wrote:
>> The actual problem was meanwhile identified: shorewall happened to
>> overwrite the queueing discipline of wmaster0 with pfifo_fast. I found
>> the magic knob to tell shorewall to no longer do this (at least until I
>> want to manage traffic control that way...), but I still wonder if it is
>> an acceptable situation. Currently, the user can intentionally or
>> accidentally screw up the stack this way.
>
> I don't seem to be able to do that:
>
> # tc qdisc change dev wmaster0 pfifo
> RTNETLINK answers: Invalid argument
>
> # tc qdisc replace dev wmaster0 pfifo
> RTNETLINK answers: Invalid argument
>
> what exactly does shorewall do?
>
Don't recall... need to re-test... lacking time. :(
Just one note: I observed this on a 2.6.19 kernel - in case there is a
difference to the latest.
Jan
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next prev parent reply other threads:[~2007-03-29 8:45 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <459A5945.80909@web.de>
[not found] ` <20070103185203.2754e059@griffin.suse.cz>
[not found] ` <459BF179.6000906@web.de>
[not found] ` <20070103191853.4f440b8b@griffin.suse.cz>
[not found] ` <459BFB05.9040608@web.de>
[not found] ` <45A03825.9080807@web.de>
[not found] ` <45A2A728.1070404@web.de>
2007-03-27 20:58 ` d80211: How does TX flow control work? Johannes Berg
2007-03-29 8:45 ` Jan Kiszka [this message]
2007-05-01 10:41 ` Jan Kiszka
2007-05-01 10:47 ` Jiri Benc
2007-05-01 10:50 ` Jan Kiszka
2007-05-01 11:04 ` Johannes Berg
2007-05-01 13:07 ` Jan Kiszka
2007-05-01 13:26 ` Johannes Berg
2007-05-01 14:18 ` Jan Kiszka
2007-05-01 15:25 ` Jiri Benc
2007-05-01 17:01 ` Michael Wu
2007-05-01 18:57 ` Jan Kiszka
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