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Date: Wed, 21 Sep 2011 14:08:33 +1000
From: Lawrence Stewart <lstewart@freebsd.org>
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To: Jason Hellenthal <jhell@DataIX.net>
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Cc: stable@freebsd.org
Subject: Re: h_ertt cc_vegas loader.conf interaction on stable/8
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On 09/21/11 13:32, Jason Hellenthal wrote:
>
> Hi Larence,
>
> On Wed, Sep 21, 2011 at 12:39:28PM +1000, Lawrence Stewart wrote:
>> Hi Jason,
>>
>> On 09/20/11 14:27, Jason Hellenthal wrote:
>>>
>>> On stable/8 as of the date of this message when attempting the following
>>> configuration the sysctl MIB net.inet.tcp.cc.algorithm is not available
>>> for /etc/sysctl.conf to tune for whatever reason.
>>>
>>> /boot/loader.conf:
>>> h_ertt_load="YES"
>>> cc_vegas_load="YES"
>>>
>>> /etc/sysctl.conf:
>>> net.inet.tcp.cc.algorithm=vegas
>>>
>>>
>>> After boot the system still has the congestion algo set to 'newreno'
>>
>> Does "sysctl net.inet.tcp.cc.available" after boot show only 'newreno'
>> in the list? Or is 'vegas' listed as well after 'newreno', even though
>> 'newreno' is listed by "sysctl net.inet.tcp.cc.algorithm"?
>
> Only 'newreno'

Ok, definitely a bug then. Should be simple to reproduce, so I'll track 
it down and send through a patch for testing when I've got something.

Cheers,
Lawrence