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From: Mark Fullmer <maf@splintered.net>
Date: Mon, 24 Dec 2007 20:16:50 -0500
To: Kostik Belousov <kostikbel@gmail.com>
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Cc: freebsd-net@FreeBSD.org, freebsd-stable@freebsd.org
Subject: Re: Packet loss every 30.999 seconds
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On Dec 24, 2007, at 8:19 AM, Kostik Belousov wrote:

>
> Mark, could you, please, retest the patch below in your setup ?
> I want to put a change or some edition of it into the 7.0 release, and
> we need to move fast to do this.

It's building now.  The testing will run overnight.

Your patch to ffs_sync() and vfs_msync() stopped the periodic packet  
loss,
but other file system activity such as (cd /; tar -cf - .) > /dev/ 
null will
cause dropped packets.  Same behavior, packets never make it up to the
IP layer.

--
mark