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Date:      Wed, 25 Dec 2002 08:57:11 +1030
From:      Greg 'groggy' Lehey <grog@FreeBSD.org>
To:        TwinsPop <fbsd@rusts.net>
Cc:        current@freebsd.org
Subject:   Re: calcru: negative time?
Message-ID:  <20021224222711.GE79700@wantadilla.lemis.com>
In-Reply-To: <20021224213702.GD661@jon.rusts.net>
References:  <20021224213702.GD661@jon.rusts.net>

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On Tuesday, 24 December 2002 at 13:37:02 -0800, TwinsPop wrote:
> I'm getting a flurry of these message since upgrading from 4.7-stable to
> 5.0-current (cvsup'd @ 1200PST 12/23):
>
>   calcru: negative time of -676146 usec for pid blah blah...
>
> It's an AMD K6-2 system.
>
> http://www.freebsd.org/releases/5.0R/DP1/errata.html
>
> Sent me to the current mailing list. I've checked the archives and see a
> mention here or there ACPI timer being at fault, but no indication of
> how to fix it/insert workaround.

The canonical answer is "you need to build a kernel without the apm
device".  But it's not in GENERIC any more.  It's also surprising that
you haven't seen this problem before: there's nothing specific to 5.0
about it.

Greg
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