Return-path: Received: from hiems2.ing.unibs.it ([192.167.23.204]:58619 "EHLO hiems2.ing.unibs.it" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751777AbZBXSuT (ORCPT ); Tue, 24 Feb 2009 13:50:19 -0500 Cc: Lorenzo Nava , wireless , Michael Buesch Message-Id: <9CC7CE2A-C80A-4620-B441-EAD6371710E1@ing.unibs.it> (sfid-20090224_195022_006124_F80B3665) From: Francesco Gringoli To: Larry Finger In-Reply-To: <49A43F8A.5000500@lwfinger.net> Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Mime-Version: 1.0 (Apple Message framework v930.3) Subject: Re: More data on open-source firmware crash Date: Tue, 24 Feb 2009 19:50:15 +0100 References: <49A1A331.9080205@lwfinger.net> <80C13710-6BA9-4F14-95B5-82C3043CE93B@ing.unibs.it> <49A41F1D.9060300@lwfinger.net> <03E07CC7-A971-4EDD-9363-628B61E94A92@ing.unibs.it> <49A421ED.7000801@lwfinger.net> <7528B52E-1B77-4CA9-A17F-01E24FDF81DC@ing.unibs.it> <49A43F8A.5000500@lwfinger.net> Sender: linux-wireless-owner@vger.kernel.org List-ID: On Feb 24, 2009, at 7:42 PM, Larry Finger wrote: > Francesco Gringoli wrote: >> >> On Feb 24, 2009, at 5:35 PM, Larry Finger wrote: >> >>> Francesco Gringoli wrote: >>>> What about drop info from dmesg? Another try could be halve the dma >>>> queue, I believe now it is 64 slots. Could you give a try setting >>>> it >>>> to 32? >>> >>> The RX DMA queue was 64 and TX was 256. Both will be 32 in my next >>> run. >>> >>> I don't understand the "drop info from dmesg" part. >> Sorry Larry, >> >> sometimes when I modify something, I can read >> >> [334415.451028] b43-phy244 debug: RX: Packet dropped >> >> in the dmesg because the received bytes were not correctly copied >> between the "air-buffer" to the internal buffer and finally to the >> rx-fifo along with the rxheader. >> >> Did you notice something similar? > > I hadn't noticed them before, but I do see one of these messages > just before > some of my out-of-order cookies. There is no associated diagnostic > message, thus > it must come from the status.rate_index test. I'll see if I can get > some info > from there. > > Larry > Larry, take care that they are not due to massive usage of b43-fwdump. Sometime this utility forces the firmware to slow down and produce such messages. If you didn't use the utility and got that message anyway, we can try to investigate on this. Cheers, -FG ------- Francesco Gringoli, PhD - Assistant Professor Dept. of Electrical Engineering for Automation University of Brescia via Branze, 38 25123 Brescia ITALY Ph: ++39.030.3715843 FAX: ++39.030.380014 WWW: http://www.ing.unibs.it/~gringoli