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Date:      Fri, 22 Feb 2002 10:33:10 -0800
From:      Jon Rust <jpr@vcnet.com>
To:        questions@freebsd.org
Subject:   microuptime() backwards deal
Message-ID:  <20020222103310.A20732@mail.vcnet.com>

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I'm running 4.4-Stable on an ABIT KA7 VIA KX133 and getting the dreaded
microuptime() backwards problem. The clock suddenly sprints forward by
huge leaps and bounds, and even ntpd cannot keep up.

Searching through archives of postings, I see Greg Lehey mention turning
off apm, or if that can't be done, throwing in a special kernel config.
I've done both, but the problem remains. I see this at boot time:

   apm0: <APM BIOS> on motherboard
   apm: found APM BIOS v1.2, connected at v1.2

I have apm turned off in the BIOS, and I have this line in my kernel
config:

   device          apm0    at nexus? flags 0x31

However, the clock still goes whacko every few months, requiring a
reboot to restore functionality to the machine.

I'd rather not go through the struggles of replacing the mobo, but if
that's my only option... Any other ideas? I don't see any mention of it
in the release notes for 4.5.

Thanks,
jon

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