From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mtiwmhc12.worldnet.att.net ([204.127.131.116]:57675 "EHLO mtiwmhc12.worldnet.att.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753955AbXHHGCa (ORCPT ); Wed, 8 Aug 2007 02:02:30 -0400 Message-ID: <46B95C75.8060404@lwfinger.net> Date: Wed, 08 Aug 2007 01:02:29 -0500 From: Larry Finger MIME-Version: 1.0 To: Larry Finger CC: Pavel Roskin , linux-wireless@vger.kernel.org, bcm43xx-dev@lists.berlios.de Subject: Re: [PATCH] Fix handling of failure to create debugfs directory References: <20070808051710.3902.43211.stgit@dv.roinet.com> <46B95A15.1080202@lwfinger.net> In-Reply-To: <46B95A15.1080202@lwfinger.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Sender: linux-wireless-owner@vger.kernel.org List-ID: Larry Finger wrote: > Pavel Roskin wrote: >> This can happen if CONFIG_BCM43XX_MAC80211_DEBUG is enabled, but >> CONFIG_DEBUG_FS is not. >> >> Signed-off-by: Pavel Roskin >> --- >> > With this patch installed, and the DEBUG configuration set as above, I get a kernel panic on an > x86_64 SMP system. The reason for the panic scrolled off the screen, but the complete stack dump > (hand copied) is as follows: > > lock_acquire+0x85/0x31 > bcm43xx_mac80211: bcm43xx_debugfs_log_txstat+0x5a/099 > _spin_lock+0x25/0x31 Ignore the noise above. I had failed to get the right patch. The crash confirms the problem _without_ the patch. Getting it in properly fixes the problem Acked-by: Larry Finger Larry