From: Maxim Levitsky <maximlevitsky@gmail.com>
To: reinette chatre <reinette.chatre@intel.com>
Cc: linux-wireless <linux-wireless@vger.kernel.org>,
linville <linville@tuxdriver.com>,
Johannes Berg <johannes@sipsolutions.net>
Subject: Re: [PATCH 000/002] Fix frequent reconnects caused by new conection monitor
Date: Fri, 31 Jul 2009 22:08:13 +0300 [thread overview]
Message-ID: <1249067293.19089.10.camel@maxim-laptop> (raw)
In-Reply-To: <1249066338.30019.214.camel@rc-desk>
On Fri, 2009-07-31 at 11:52 -0700, reinette chatre wrote:
> On Fri, 2009-07-31 at 09:13 -0700, Maxim Levitsky wrote:
> > Hi, here is the updated version of these two patches that fix the
> > $SUBJECT issue.
> >
> > I attach these (in case mailer mangles them), and reply with patches.
> >
> > Tested both with low quality signal, and beacon loss.
> > Lack of TX is found, every 30 seconds now, and quite reliable.
> > Lack of beacons, triggers probe like it did every 2 seconds.
>
> Thanks!
>
> I've been running with this for two hours now with no disconnects. This
> is where before the patches I would get disconnected after a few
> minutes. I did get two "No probe response from AP xx:xx:xx:xx:xx:xx
> after 500ms, try 1" messages in my log.
This is normal, or at least can be normal, I patched the driver to
display this message, when there is a probe timeout, but instead of
disconnect, it retries, currently 5 times, but this can be even further
increased is necessarily.
(these messages are only in logs when verbose mac debugging is enabled)
I don't know exactly why probes aren't answered, but I strongly suspect
that my AP sometimes 'goes out to lunch' and then answers, since
typically after a failed probe it sends many replies.
(Or it could be some buffering done by iwl3945 microcode). I currently
can't monitor the connection from outside, but as soon as I can I see
whether the above is true. Nevertheless if signal quality isn't great,
there are valid reasons for probe loss, and it shouldn't cause all the
fuzz (and since I use WPA2, every reconnection causes whole WPA
handshake to be preformed, and this takes at least 2 seconds, and if a
reconnection happens each 5 seconds, it gets very very annoying, and
almost unusable.
And polling every 2 seconds, this way or another, I think is too much
anyway.
Best regards,
Maxim Levitsky
>
> Reinette
>
>
next prev parent reply other threads:[~2009-07-31 19:08 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-31 16:13 [PATCH 000/002] Fix frequent reconnects caused by new conection monitor Maxim Levitsky
2009-07-31 16:14 ` [PATCH 001/002] [MAC80211] Retry probe request few times Maxim Levitsky
2009-07-31 16:21 ` Johannes Berg
2009-08-05 2:22 ` Marcel Holtmann
2009-08-05 5:29 ` Maxim Levitsky
2009-08-05 5:33 ` Johannes Berg
2009-08-05 5:50 ` Gábor Stefanik
2009-08-05 5:51 ` Johannes Berg
2009-08-05 5:53 ` Gábor Stefanik
2009-08-05 5:58 ` Johannes Berg
2009-08-05 15:45 ` Marcel Holtmann
2009-07-31 16:17 ` [PATCH 002/002] [MAC80211] Increase timeouts for station polling Maxim Levitsky
2009-07-31 16:21 ` Johannes Berg
2009-07-31 18:52 ` [PATCH 000/002] Fix frequent reconnects caused by new conection monitor reinette chatre
2009-07-31 19:08 ` Maxim Levitsky [this message]
2009-07-31 19:27 ` Marcel Holtmann
2009-07-31 20:05 ` Maxim Levitsky
2009-08-01 15:25 ` Marcel Holtmann
2009-08-03 22:33 ` Maxim Levitsky
2009-08-03 23:58 ` Marcel Holtmann
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