Re: 2.6.23-rc5: possible irq lock inversion dependency detected

From: Peter Zijlstra
Date: Mon Sep 10 2007 - 08:05:13 EST


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: [<c038d595>] 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.

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