From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Zijlstra Subject: Re: 2.6.23-rc5: possible irq lock inversion dependency detected Date: Mon, 10 Sep 2007 14:03:33 +0200 Message-ID: <1189425813.21778.13.camel@twins> References: Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org To: Christian Kujau Return-path: In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On Sun, 2007-09-02 at 15:11 +0200, Christian Kujau wrote: > Hi, > > after upgrading to 2.6.23-rc5 (and applying davem's fix [0]), lockdep > was quite noisy when I tried to shape my external (wireless) interface: > > [ 6400.534545] FahCore_78.exe/3552 just changed the state of lock: > [ 6400.534713] (&dev->ingress_lock){-+..}, at: [] netif_receive_skb+0x2d5/0x3c0 > [ 6400.534941] but this lock took another, soft-read-irq-unsafe lock in the past: > [ 6400.535145] (police_lock){-.--} > > This happened when I executed: http://nerdbynature.de/bits/2.6.23-rc5/qos.sh.txt > (using iproute2-ss070313). The is still running, I just noticed a short > hickup, probably when it was busy writing the warning to the disk. > > More details and .config: http://nerdbynature.de/bits/2.6.23-rc5/ seems unavailable at this time, please submit the whole lockdep report if possible.