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From: John Baldwin <jhb@FreeBSD.org>
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To: Bjoern A. Zeeb <bz@FreeBSD.org>
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Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org,
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Subject: Re: svn commit: r224516 - in head/sys: amd64/amd64 i386/i386
	pc98/pc98
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On Jul 30, 2011, at 9:33 AM, Bjoern A. Zeeb wrote:

> Author: bz
> Date: Sat Jul 30 13:33:05 2011
> New Revision: 224516
> URL: http://svn.freebsd.org/changeset/base/224516
>=20
> Log:
>  Introduce a tunable to disable the time consuming parts of bootup
>  memtesting, which can easily save seconds to minutes of boot time.
>  The tunable name is kept general to allow reusing the code in
>  alternate frameworks.

Why the 'tmpul' variable?  The TUNABLE_*_FETCH() macros will not modify =
the parameter
if the environment variable is missing or unparseable.  Lots of places =
depend on this all over
the kernel already, so you can depend on it here.

--=20
John Baldwin