From: Eric Dumazet <eric.dumazet@gmail.com>
To: Tom Parkin <tparkin@katalix.com>, David Miller <davem@davemloft.net>
Cc: netdev <netdev@vger.kernel.org>
Subject: Re: LOCKDEP complaints in l2tp_xmit_skb()
Date: Thu, 28 Jun 2012 10:57:42 +0200 [thread overview]
Message-ID: <1340873862.13187.5.camel@edumazet-glaptop> (raw)
In-Reply-To: <1340866572.26242.312.camel@edumazet-glaptop>
On Thu, 2012-06-28 at 08:56 +0200, Eric Dumazet wrote:
> [PATCH] net: Qdisc busylock gets its own lockdep class
>
> Tom Parkin reported following LOCKDEP splat :
..
>
> Instruct lockdep that each Qdisc busylock is independant, or else
> bonding or various tunnels can trigger a splat.
>
> Reported-by: Tom Parkin <tparkin@katalix.com>
> Signed-off-by: Eric Dumazet <edumazet@google.com>
> ---
I reproduced the bug using a bond0 device, adding a qdisc on it,
(one Qdisc on bond0, and a Qdisc on the slave too)
Problem with this patch is I have following message :
BUG: key ffff88..... not in .data!
No more LOCKDEP splat, but patch not good as is.
next prev parent reply other threads:[~2012-06-28 8:57 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-27 11:11 LOCKDEP complaints in l2tp_xmit_skb() Tom Parkin
2012-06-28 6:56 ` Eric Dumazet
2012-06-28 8:57 ` Eric Dumazet [this message]
2012-06-28 11:22 ` Eric Dumazet
2012-06-28 14:33 ` Tom Parkin
2012-06-28 15:00 ` Eric Dumazet
2012-06-28 15:20 ` Tom Parkin
2012-06-28 15:23 ` Eric Dumazet
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