Return-path: Received: from xc.sipsolutions.net ([83.246.72.84]:45651 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750732AbZKDJbf (ORCPT ); Wed, 4 Nov 2009 04:31:35 -0500 Subject: Re: iwlwifi connection troubles, maybe aggregation related From: Johannes Berg To: Andrew Lutomirski Cc: linux-wireless@vger.kernel.org, ilw@linux.intel.com In-Reply-To: References: Content-Type: multipart/signed; micalg="pgp-sha1"; protocol="application/pgp-signature"; boundary="=-teQeZP8aKrRVnOo8Fetq" Date: Wed, 04 Nov 2009 10:30:17 +0100 Message-ID: <1257327017.28469.76.camel@johannes.local> Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: --=-teQeZP8aKrRVnOo8Fetq Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Tue, 2009-11-03 at 18:38 -0500, Andrew Lutomirski wrote: > iwlagn 0000:03:00.0: iwl_tx_agg_start on ra =3D 00:21:d8:49:4a:52 tid =3D= 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). >=20 > After running "iw dev wlan0 disconnect" a few times, I start to get > errors like this: >=20 > [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=3D1. But I don't know at this point what the problem could be. johannes --=-teQeZP8aKrRVnOo8Fetq Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- iQIcBAABAgAGBQJK8UmkAAoJEODzc/N7+Qmav88P/27mVtPrzz43wK79kQVvcVLj LtTwhy4QDlMCjG6RWyftrkPLSV2C5OqP2pzBmn5BoUnVkyI5v42ecKxipl+/PeM5 VrqYkqY9IOEG/ffKxviSyzT/kStTFBYcnl1ZexrkW2DFKSJTDwIo5rh7TpSldp0E 3xVm9cPHCJFBW+y7HqX1ZeL/1TdD13u2FANoTK7e9olh50dBQQaAJti1w3EJU7kI TMZ+cA5A1cxS21wLzr2aihaZnMnIKp+UdRJzfZwT0wJE33nw1cW0ALI3VmFWqbXn Atf4xmVFrbmfIiN3gdnQvIdewXpItpgBYlLo6tpIfeYVyw1hxF4OOn4PslI+vwnF qh5UUfbsBok/ajSt9U0VXSuV4NyrjClim1ZFChYcbbBYp0LbtdnLz0Pb1NcJRDyI urVxrToYz+TLd32hOAQhlTYatdv0JZyh0rBgyNzTRz8CYlYy/MJ7yis+ujBZf9// luccuUAiOjFYlTTAWpz5D+bngciuWJLhcCDL2irNnzq2o88Hdx8ClO0qC5t1l2ts iYhRDjDoCa1GWmF0yQNcXpP43ioorbe8N4TNY9A2KRAkeAZoiI98YzUiR/WLMkIu V7ftZetRnnwZY/QhbgR+DQMrzQuXAz2rP962ZIpH06AFbfS/LT/kmt9yj8WUNe5f l3pqlP9uGFWVUsPueHni =jBhg -----END PGP SIGNATURE----- --=-teQeZP8aKrRVnOo8Fetq--