netdev - Re: 3.6-rt: inet_sk_rx_dst

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Message-ID: <1366985666.8964.186.camel@edumazet-glaptop>
Date:	Fri, 26 Apr 2013 07:14:26 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Cc:	Mike Galbraith <bitbucket@...ine.de>,
	David Miller <davem@...emloft.net>,
	RT <linux-rt-users@...r.kernel.org>,
	netdev <netdev@...r.kernel.org>
Subject: Re: 3.6-rt: inet_sk_rx_dst_set() network splat

On Fri, 2013-04-26 at 12:50 +0200, Sebastian Andrzej Siewior wrote:
> * Eric Dumazet | 2013-04-24 22:03:53 [-0700]:
> 
> >On Thu, 2013-04-25 at 06:51 +0200, Mike Galbraith wrote:
> >
> >> Thanks for the fix.  I'll apply it and beat on the box some more (g.p.).
> >> Gripe only happened the one time during long workout day.
> >
> >To force it to happen, you need to invalidate the cached dst in socket.
> >
> >So presumably doing in the background some "ip ro ..." commands to
> >add/delete routes.
> 
> With this instructions I can crash in like 3-5 minutes, with your patch
> it runs now for 50minutes now. Thanks.

Thanks for testing !


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