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Date:      Mon, 1 Aug 2005 19:16:58 +0100 (BST)
From:      Robert Watson <rwatson@FreeBSD.org>
To:        Ed Maste <emaste@phaedrus.sandvine.ca>
Cc:        freebsd-net@freebsd.org, gnn@FreeBSD.org
Subject:   Re: what to replace splnet in FreeBSD 5.x?
Message-ID:  <20050801190211.Q61500@fledge.watson.org>
In-Reply-To: <20050723013902.L40216@fledge.watson.org>
References:  <42CEF0EB.4000107@borderware.com> <42D006DB.8080108@errno.com> <20050712150224.GA38249@sandvine.com> <20050712162332.Q79478@fledge.watson.org> <20050712220452.GB38249@sandvine.com> <20050723012046.K40216@fledge.watson.org> <20050723013902.L40216@fledge.watson.org>

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On Sat, 23 Jul 2005, Robert Watson wrote:

> On Sat, 23 Jul 2005, Robert Watson wrote:
>
>> The attached patch introduces locking around the link layer and IPv4 
>> multicast address lists, as well as updates drivers to use the locking. 
>> It's a fairly large diff, but other than the changes to if.c, in.c, and 
>> igmp.c, is fairly mechanical.  It may well correct the problem you've 
>> been seeing.  If possible, and given sufficient review, I'd like to get 
>> this change into 6.0, especially given that it affects the layout of 
>> struct ifnet which is part of the ABI for network interface device 
>> drivers.
>
> Updated version of the patch at:
> 
> http://www.watson.org/~robert/freebsd/netperf/20050523-multicast.diff
>
> Spl-related cleanups (no longer useful documentation of old 
> synchronization in many places), lock order hard-coded into WITNESS 
> order rather than dynamically detected.

Ed,

Have you had a chance to run with this patch as yet?  If possible, I'd 
like to get it merged to 7.x-CURRENT so we can backport it for 6.0.

Robert N M Watson



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