Return-path: Received: from mga01.intel.com ([192.55.52.88]:36759 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752664AbYJ0UCO (ORCPT ); Mon, 27 Oct 2008 16:02:14 -0400 Subject: Re: 2.6.28-rc regression: Can't stop Rx DMA From: reinette chatre To: Dominik Brodowski Cc: Tomas Winkler , "ipw3945-devel@lists.sourceforge.net" , "linux-wireless@vger.kernel.org" In-Reply-To: <20081019075916.GA12904@isilmar.linta.de> References: <20081018231046.GA10977@isilmar.linta.de> <1ba2fa240810181630t781468dbi23b103e656f64153@mail.gmail.com> <20081019075916.GA12904@isilmar.linta.de> Content-Type: text/plain Date: Mon, 27 Oct 2008 13:02:35 -0700 Message-Id: <1225137755.1115.121.camel@rc-desk> (sfid-20081027_210223_077663_28D15543) Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Sun, 2008-10-19 at 00:59 -0700, Dominik Brodowski wrote: > On Sun, Oct 19, 2008 at 01:30:50AM +0200, Tomas Winkler wrote: > > On Sun, Oct 19, 2008 at 1:10 AM, Dominik Brodowski > > > [ 37.340901] iwl3945: Microcode SW error detected. Restarting 0x82000008. > > > [ 37.340944] iwl3945: Error Reply type 0x00000005 cmd REPLY_SCAN_CMD (0x80) seq 0x4413 ser 0x0000004B > > > [ 37.342349] iwl3945: Can't stop Rx DMA. > > > > > > The iwlwifi-3945-1.ucode is the one shipped with Ubuntu's 2.6.24-21-generic > > > kernel sources (md5sum: 26d10014b09439dc5a8573c2a6f85b0a ). And, as > > > mentioned in the subject, 2.6.27 or 2.6.26 work perfectly fine. > > > > I think you need new uCode, the API has changed to support stealth APs > > .... I believe there was some misscommunication... > > Thanks for the hint -- indeed, the newest uCode works both with 2.6.26 and > current git... so the uCode is backwards compatible, but the kernel code is > not. Should the uCode be named iwlwifi-3945-2.ucode therefore, to notify the > users that they need something newer? Or can the kernel code be made to work > with the old uCode again? Instead of new ucode ... could you please try this patch ? Thank you diff --git a/drivers/net/wireless/iwlwifi/iwl-scan.c b/drivers/net/wireless/iwlwifi/iwl-scan.c index 6c8ac3a..61c9a40 100644 --- a/drivers/net/wireless/iwlwifi/iwl-scan.c +++ b/drivers/net/wireless/iwlwifi/iwl-scan.c @@ -709,7 +709,7 @@ static void iwl_bg_request_scan(struct work_struct *data) u32 tx_ant; u16 cmd_len; enum ieee80211_band band; - u8 n_probes = 2; + u8 n_probes = 0; u8 rx_chain = 0x7; /* bitmap: ABC chains */ conf = ieee80211_get_hw_conf(priv->hw);