From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joshua Emele Subject: Re: MUSB problem Date: Mon, 14 May 2012 23:13:12 +0000 (UTC) Message-ID: References: <4F97EBDF.7090400@mlbassoc.com> <4F97EE60.4090406@mlbassoc.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Return-path: Received: from plane.gmane.org ([80.91.229.3]:34130 "EHLO plane.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758246Ab2ENXPG (ORCPT ); Mon, 14 May 2012 19:15:06 -0400 Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1SU4Tn-0001FL-IN for linux-omap@vger.kernel.org; Tue, 15 May 2012 01:15:03 +0200 Received: from 69.199.146.210 ([69.199.146.210]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 15 May 2012 01:15:03 +0200 Received: from jemele by 69.199.146.210 with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 15 May 2012 01:15:03 +0200 Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: linux-omap@vger.kernel.org > Actually, I was too hasty saying that this worked even with this > error. I can ping out from my board, but any higher level of traffic, > e.g. SSH into the box, falls over > > The problems vanish when I disable MUSB DMA. > > What gives? > I'm also seeing this on a variety of kernels, from 2.6.34 to 3.3.0. I must explicitly set musb_hdrc.use_dma=n for the smsc95xx card to function. The latest kernel I have tested this against is: Linux WC-11003A 3.3.0 #1 PREEMPT Fri May 11 18:05:35 PDT 2012 armv7l GNU/Linux