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Date:      Sun, 25 Nov 2012 14:00:30 +0300
From:      Sergey Kandaurov <pluknet@gmail.com>
To:        perryh@pluto.rain.com
Cc:        adrian@freebsd.org, freebsd-stable@freebsd.org
Subject:   Re: Increasing the DMESG buffer....
Message-ID:  <CAE-mSOK0Z=vWAGDmX3xfTn5DgV9QG_=nVc4RnCD_mZxcbQXf7w@mail.gmail.com>
In-Reply-To: <50b1b655.VxCS9jNpfM3zCF/x%perryh@pluto.rain.com>
References:  <50AD0E82.3070706@digiware.nl> <20121121194142.8c4bf7d1977f13801a021ccc@getmail.no> <op.wn4141f88527sy@212-182-167-131.ip.telfort.nl> <CAJ-VmomREO6uj_izmD%2Bp90cFn=AQcz7UbZNkX8PVnU5mG_8ufQ@mail.gmail.com> <20121122144400.M21191@sola.nimnet.asn.au> <CAJ-Vmonk2RS=FwpgVHpeuFF5jf%2BSjE2Hv8kOFBrDCkv-=hTYSg@mail.gmail.com> <20121122213328.J21191@sola.nimnet.asn.au> <50AE36FF.7080106@FreeBSD.org> <CAJ-Vmo=UOTu0KG6yHjZ_gBB4HGSGNJOAhn3HT-8gNsh_=ih7Yg@mail.gmail.com> <CAN6yY1v1AdhgqQfONbDAEueU2wnFZDO8GvegRzq10y0yoj8kDg@mail.gmail.com> <20121122224906.GE88593@in-addr.com> <CAN6yY1sK3U=18ovFYPAViuMxTDCm2qZ-msLmM7Zgymx=u6ga4w@mail.gmail.com> <50B155E9.3010505@digiware.nl> <CAJ-VmonkgKjkd2KNZcQ4g54uHQg2e4OvvKOWo2L30sn8bxmP7A@mail.gmail.com> <50B18CB9.8040701@FreeBSD.org> <50b1b655.VxCS9jNpfM3zCF/x%perryh@pluto.rain.com>

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On 25 November 2012 10:10,  <perryh@pluto.rain.com> wrote:
> Alexander Motin <mav@freebsd.org> wrote:
>
>> On 25.11.2012 01:43, Adrian Chadd wrote:
>> > I'm surprised it's not tunable via a kenv variable at boottime..
>>
>> It is tunable. AFAIR that is it:
>> kern.msgbufsize="65536"       # Set size of kernel message buffer
>
> Yep.  That tunable is available in 8.2 (not 8.1), and I think in
> all 9.x; dunno if it was ever MFC'd to the 7.x branch.
>

The tunable was merged to stable/8 in March 2011 and
first appeared in 8.3. It was never merged to stable/7.
IIRC it should be quite easy to adopt those patches to stable/7.

-- 
wbr,
pluknet



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