From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from fk-out-0910.google.com ([209.85.128.191]:7978 "EHLO fk-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752155AbYGRTG2 (ORCPT ); Fri, 18 Jul 2008 15:06:28 -0400 Received: by fk-out-0910.google.com with SMTP id 18so314078fkq.5 for ; Fri, 18 Jul 2008 12:06:27 -0700 (PDT) To: Johannes Berg Subject: Re: mac80211 deadlock detection triggering with rt61pci Date: Fri, 18 Jul 2008 21:20:47 +0200 Cc: linux-wireless , John Linville References: <1216197369.3422.5.camel@johannes.berg> In-Reply-To: <1216197369.3422.5.camel@johannes.berg> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-15" Message-Id: <200807182120.47252.IvDoorn@gmail.com> (sfid-20080718_210632_251822_82638B0F) From: Ivo van Doorn Sender: linux-wireless-owner@vger.kernel.org List-ID: Hi, > I'm not sure whether this still happens in current versions or not, but > kerneloops is reporting a number of mac80211 warnings due to the TX > deadlock detection: > http://www.kerneloops.org/searchweek.php?search=ieee80211_master_start_xmit > > The rt2x00 mac code seems fine, did it change recently which could > explain this warning triggering? Interesting, the TX code did change for 2.6.27 recently with the DMA changes by GertJan, I think the Fedora kernels which are showing the above panics already contain those patches, John, Does Fedora kernel 2.6.25.10-86.fc9.x86_64 contain rt2x00 2.1.8? I also have some reports about a queue corruption in rt61pci and although I haven't figured out how that corruption is caused, I do think the above panics might somehow be related. Thanks for the report, Ivo