Return-path: Received: from shards.monkeyblade.net ([149.20.54.216]:54229 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753853Ab3BSFwI (ORCPT ); Tue, 19 Feb 2013 00:52:08 -0500 Date: Tue, 19 Feb 2013 00:52:06 -0500 (EST) Message-Id: <20130219.005206.397289032011003833.davem@davemloft.net> (sfid-20130219_065213_829241_34929596) To: Larry.Finger@lwfinger.net Cc: linville@tuxdriver.com, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, bittorf@bluebottle.com, stable@vger.kernel.org Subject: Re: [PATCH] b43: Increase number of RX DMA slots From: David Miller In-Reply-To: <1361156480-32566-1-git-send-email-Larry.Finger@lwfinger.net> References: <1361156480-32566-1-git-send-email-Larry.Finger@lwfinger.net> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Sender: linux-wireless-owner@vger.kernel.org List-ID: From: Larry Finger Date: Sun, 17 Feb 2013 21:01:20 -0600 > Bastian Bittorf reported that some of the silent freezes on a Linksys WRT54G > were due to overflow of the RX DMA ring buffer, which was created with 64 > slots. That finding reminded me that I was seeing similar crashed on a netbook, > which also has a relatively slow processor. After increasing the number of > slots to 128, runs on the netbook that previously failed now worked; however, > I found that 109 slots had been used in one test. For that reason, the number > of slots is being increased to 256. > > Signed-off-by: Larry Finger Applied.