Linux wireless drivers development
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From: Johannes Berg <johannes@sipsolutions.net>
To: Andrew Lutomirski <luto@mit.edu>
Cc: linux-wireless@vger.kernel.org, ilw@linux.intel.com
Subject: Re: iwlwifi connection troubles, maybe aggregation related
Date: Wed, 04 Nov 2009 10:30:17 +0100	[thread overview]
Message-ID: <1257327017.28469.76.camel@johannes.local> (raw)
In-Reply-To: <cb0375e10911031538n62fe7473x4dd41329b9264b5c@mail.gmail.com>

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On Tue, 2009-11-03 at 18:38 -0500, Andrew Lutomirski wrote:

> iwlagn 0000:03:00.0: iwl_tx_agg_start on ra = 00:21:d8:49:4a:52 tid = 0

> Turning on or off power management and fiddling with
> no_sleep_autoadjust makes no difference.  Setting tx_agg_tid_enable to
> zero in debugfs while the connection was working seemed to make it a
> little more reliable (it lasted long enough to do "git pull" but not
> much longer).
> 
> After running "iw dev wlan0 disconnect" a few times, I start to get
> errors like this:
> 
> [18078.209635] iwlagn 0000:03:00.0: SENSITIVITY_CMD failed
> [18078.313461] iwlagn 0000:03:00.0: No space for Tx
> [18078.313467] iwlagn 0000:03:00.0: Error sending SENSITIVITY_CMD:
> enqueue_hcmd failed: -28
> [18078.313470] iwlagn 0000:03:00.0: SENSITIVITY_CMD failed
> [18078.522409] iwlagn 0000:03:00.0: No space for Tx
> [18078.522414] iwlagn 0000:03:00.0: Error sending SENSITIVITY_CMD:
> enqueue_hcmd failed: -28

Sounds like the firmware messes up ...

Maybe as a first workaround you could modprobe iwlagn with
11n_disable=1. But I don't know at this point what the problem could be.

johannes

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  parent reply	other threads:[~2009-11-04  9:31 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-11-03 23:38 iwlwifi connection troubles, maybe aggregation related Andrew Lutomirski
2009-11-04  1:47 ` Greg Oliver
2009-11-04  9:30 ` Johannes Berg [this message]
2009-11-04 10:59   ` Greg Oliver
2009-11-04 11:32     ` Greg Oliver
2009-11-06 19:45   ` Andrew Lutomirski
2009-11-17 22:03     ` Andrew Lutomirski

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