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From: Norbert Preining <preining@logic.at>
To: Johannes Berg <johannes@sipsolutions.net>
Cc: "Venkataraman, Meenakshi" <meenakshi.venkataraman@intel.com>,
	"Lin, Hsien KuoX" <hsien.kuox.lin@intel.com>,
	"ilw@linux.intel.com" <ilw@linux.intel.com>,
	"linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	Emmanuel Grumbach <egrumbach@gmail.com>
Subject: Re: [Ilw]  Re: 3.4-rc2, ilwagn still most of the time completely unusable
Date: Wed, 25 Jul 2012 12:07:31 +0900	[thread overview]
Message-ID: <20120725030731.GB8504@gamma.logic.tuwien.ac.at> (raw)
In-Reply-To: <1342109807.4531.38.camel@jlt3.sipsolutions.net>

Hi Johannes,

Sorry for the late reply, I was travelling around the world ...
I have now tested the =2 and =4 settings at home, with the following
outcome:

On Do, 12 Jul 2012, Johannes Berg wrote:
> With the latest, I've extended 11n_disable to have more bits.
> 
> 11n_disable=1 will disable HT completely
> 11n_disable=2 will disable TX aggregation
> 11n_disable=4 will disable RX aggregation

11n_disabled=2:
lots of messages
  Open BA session requested for 00:0a:79:eb:56:10 tid 0
  BA request denied - HW unavailable for tid 0
and
  Rx BA session stop requested for 00:0a:79:eb:56:10 tid 0 inititator reason: 0
  Rx A-MPDU request on tid 0 result 0

Connection is stable for quite some time, but after 1-2 hours I got
a bad hang, grinding to a halt. pings to kernel.org gives 26% 
packet loss, but the rest of the packets are fast 130ms 

(Isn't that a strange thing - 25+% packet loss and all others are fast?)
I assume the packaet loss is related to the above messages.


11n_disabled=4:

lots of messages
  Rx A-MPDU request on tid 0 result -22
and at some point ping timeouts of 80+ secs (!) and then total hang
(as far as I remember)

Best wishes

Norbert
------------------------------------------------------------------------
Norbert Preining            preining@{jaist.ac.jp, logic.at, debian.org}
JAIST, Japan                                 TeX Live & Debian Developer
DSA: 0x09C5B094   fp: 14DF 2E6C 0307 BE6D AD76  A9C0 D2BF 4AA3 09C5 B094
------------------------------------------------------------------------
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  reply	other threads:[~2012-07-25  3:07 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-03-30  1:17 iwlagn (3.3-wl), the saga continuous Norbert Preining
2012-04-11  2:37 ` 3.4-rc2, ilwagn still most of the time completely unusable Norbert Preining
2012-04-11  2:54   ` David Miller
2012-04-11 18:40     ` Ted Ts'o
2012-04-11 20:01       ` Dave Jones
2012-04-11 23:01         ` Norbert Preining
2012-04-11 23:24   ` Venkataraman, Meenakshi
2012-04-12  0:02     ` Norbert Preining
2012-04-13  1:32       ` Venkataraman, Meenakshi
2012-04-13  1:40         ` Norbert Preining
     [not found]           ` <59083F8344AE164EB150C0518405C0680E0F285C@FMSMSX107.amr.corp.intel.com>
2012-06-28  7:25             ` Norbert Preining
2012-06-28  7:51               ` [Ilw] " Johannes Berg
2012-06-28  8:16                 ` Norbert Preining
2012-07-03 19:35                   ` Alessandro Suardi
2012-07-12  8:14                   ` Norbert Preining
2012-07-12 16:16                     ` Johannes Berg
2012-07-25  3:07                       ` Norbert Preining [this message]
2012-04-13  5:38         ` Norbert Preining
2012-04-25  1:06           ` Venkataraman, Meenakshi
2012-04-26  0:51             ` Norbert Preining

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