From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from c60.cesmail.net ([216.154.195.49]:18732 "EHLO c60.cesmail.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750783Ab1IUP6e convert rfc822-to-8bit (ORCPT ); Wed, 21 Sep 2011 11:58:34 -0400 Date: Wed, 21 Sep 2011 11:58:25 -0400 From: Pavel Roskin To: Mohammed Shafi Cc: Christian Kapeller , linux-wireless@vger.kernel.org Subject: Re: Oops while loading firmware of ath9k_htc device. Message-ID: <20110921115825.6e28bd75@mj> (sfid-20110921_175838_077081_B4CC31D1) In-Reply-To: References: <1314956005.12761.10.camel@christian-kapeller> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Mon, 5 Sep 2011 13:19:39 +0530 Mohammed Shafi wrote: > On Fri, Sep 2, 2011 at 3:03 PM, Christian Kapeller > wrote: > > I use the openwrt backfire distribution on an arm device, with > > kernel 2.6.31.12 and compat-wireless-2011-06-22. The firmware file > > is at /lib/firmware/ar9271.fw ... > >  (2.6.31.12 #1) PC is at get_device_parent+0x78/0x14c > > LR is at get_device_parent+0x70/0x14c ... > > Something goes wrong, starting in compat_firmware_class.c. I wasn't > > able to nail it down yet. > > please try to use the updated firmware > http://wireless.kernel.org/download/htc_fw/1.3/ > unlikely the oops disappears Indeed, it's very unlikely. I suspect the compat_firmware_class.c code, which is specific to compat-wireless. The way do debug it is to find out what's wrong in get_device_parent and work from there. I suggest trying the latest compat-wireless. I think it might be possible to reproduce the problem on the same kernel version (2.6.31.12) on a PC. -- Regards, Pavel Roskin