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Message-ID: <4FFB43CD.4070802@delphij.net>
Date: Mon, 09 Jul 2012 13:49:17 -0700
From: Xin Li <delphij@delphij.net>
Organization: The FreeBSD Project
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To: Mikolaj Golub <trociny@FreeBSD.org>
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Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org,
	src-committers@freebsd.org, d@delphij.net
Subject: Re: svn commit: r238309 - head/sys/net
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On 07/09/12 13:38, Mikolaj Golub wrote:
> Author: trociny Date: Mon Jul  9 20:38:18 2012 New Revision:
> 238309 URL: http://svn.freebsd.org/changeset/base/238309
> 
> Log: In epair_clone_destroy(), when destroying the second half, we
> have to switch to its vnet before calling ether_ifdetach().
> Otherwise if the second half resides in a different vnet,
> if_detach() silently fails leaving a stale pointer in V_ifnet list,
> and the system crashes trying to access this pointer later.
> 
> Another solution could be not to allow to destroy epair unless
> both ends are in the home vnet.
> 
> Discussed with:	bz Tested by:	delphij

Thanks!

Since this affects RELENG_9 and RELENG_8, could you please also MFC
after a settle period?

Cheers,
- -- 
Xin LI <delphij@delphij.net>	https://www.delphij.net/
FreeBSD - The Power to Serve!		Live free or die
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