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Date:      Tue, 5 Dec 2000 12:15:21 +1030
From:      Greg Lehey <grog@lemis.com>
To:        Tom Snell <gracchus@inficad.com>, Andrew Partan <asp@partan.com>
Cc:        "[FreeBSD-Questions]" <freebsd-questions@FreeBSD.ORG>
Subject:   Re: FBSD 4.1: First Install: microuptime()???
Message-ID:  <20001205121521.E84692@echunga.lemis.com>
In-Reply-To: <3A29E8D0.E9CAC2AD@inficad.com>; from gracchus@inficad.com on Sat, Dec 02, 2000 at 11:31:44PM -0700
References:  <3A2A9D97.51CE35D3@ljusdal.net> <016e01c05cf9$cdde8ba0$fa5e78cb@gchang> <3A2A92EE.4707D18A@inficad.com> <3A2AC9B7.E4E341EE@inficad.com> <20001203174014.A1699@partan.com> <3A2A9D97.51CE35D3@ljusdal.net> <016e01c05cf9$cdde8ba0$fa5e78cb@gchang> <3A2A92EE.4707D18A@inficad.com> <3A2AC9B7.E4E341EE@inficad.com> <3A29E8D0.E9CAC2AD@inficad.com>

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On Saturday,  2 December 2000 at 23:31:44 -0700, Tom Snell wrote:
> Well, I took the BSD plunge after 4 years of Linux, and it isn't
> pretty.  The install itself went OK (from the 4.1 CD's in the BSD
> Desktop Edition), but on boot I get a rapidly, then slower, repeating
> line, with incrementing values:
>
> microuptime() went backwards (437.201814 -> 437, -694864070)
>
> [Wherein the '437' value in this example increments with each succeeding
> line, and the 'second' values show the value on the left side of the
> director higher than the value to the right).
>
> Is this indicative of a particular install problem, a particular script
> or boot program error, or my hardware?  I run WinME and Linux Mandrake
> 7.2 on the same box with no problem, but I did install FBSD by itself on
> the second IDE drive (IBM 3.2GB, on IDE2).  Other system info is:
>
> AMD Athlon 650MHz
> 128MB SDRAM (Mushkin)
> Microstar MS-6195 (K7Pro) Mobo
> SB Live! Value Soundcard
> Matrox Millenium G400 32MB DualHead video card

On Sunday,  3 December 2000 at 15:31:19 -0700, Tom Snell wrote:
>
> Well, I tried installing without checking the APM package, but the same
> thing happened; do I need to modify the source code itself to disable
> the APM option?  I have another dual-boot box with a Celeron 466 aboard,
> so once I pull off the Linux distro, I'll try installing FBSD to that
> one and see what happens.

Reinstallation is not a way to solve problems.  Starting from your
present installation, you should change one thing at a time.

On Sunday,  3 December 2000 at 17:40:14 -0500, Andrew Partan wrote:
> On Sun, Dec 03, 2000 at 03:31:19PM -0700, Tom Snell wrote:
>> Well, I tried installing without checking the APM package, but the same
>> thing happened; do I need to modify the source code itself to disable
>> the APM option?
>
> Make sure that you do not have:
> 	apm_enable="YES"
> in your /etc/rc.conf.  Either remove this line (apm_enable defaults
> to NO - see /etc/defaults/rc.conf) or set it to NO.
>
> If you do this & reboot, the microuptime stuff should stop (at
> least it did for me).

This is the correct approach.  It's probably a known (but
unidentified) bug in the APM code.  It's possible to disable APM in
UserConfig, but past experience suggests that this will not fix the
problem: you must build a kernel with no APM support.

Greg
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