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Date: Wed, 18 Jul 2007 13:07:55 -0500 (CDT)
From: Scott Bennett <bennett@cs.niu.edu>
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To: freebsd-net@freebsd.org, Max Laier <max@love2party.net>
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Cc: freebsd-current@freebsd.org, Robert Watson <rwatson@freebsd.org>
Subject: Re: Reminder: NET_NEEDS_GIANT, debug.mpsafenet going away in
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  [Cc: list trimmed a bit more  --SB]
     On Tue, 17 Jul 2007 23:42:14 +0200 Max Laier <max@love2party.net>

>[ Excess CC-list ... testers needed!!! ]
>
>On Tuesday 17 July 2007, Robert Watson wrote:

     I missed Robert Watson's start of thread, so I'm jumping in here
with a question.

>> Dear all:
>>
>> This is a reminder e-mail that, in the very near future, Giant
>> compatibility shims for network protocols will be removed.
>
     How, if at all, will this affect qemu users?  qemu exits unless
AIO is present in the kernel (or aio.ko has been kldload-ed).  In
FreeBSD 6.2, AIO results in a warning message at boot time that says
AIO is not MPSAFE and that therefore the networking stack will take a
deep performance hit.


                                  Scott Bennett, Comm. ASMELG, CFIAG
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