netdev - Re: 3.6-rt: inet_sk_rx_dst

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Message-ID: <20130426105030.GE20927@linutronix.de>
Date:	Fri, 26 Apr 2013 12:50:30 +0200
From:	Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:	Eric Dumazet <eric.dumazet@...il.com>
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

* 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.

Sebastian
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