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Date:      Sat, 26 Feb 2000 12:19:08 -0800
From:      "Dan O'Connor" <dan@jgl.reno.nv.us>
To:        "Paul Murphy" <pnmurphy@home.com>, "freebsd-questions" <freebsd-questions@FreeBSD.ORG>
Subject:   Re: My machine prints "calcru: negative time..."
Message-ID:  <0ff301bf8096$dc1cfc00$0200000a@danco.home>

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> Is there any way of tracking down _exactly_ what is causing the
>"calcru" failure?

Take a look at the output from 'dmesg' and find the TSC line:

    Timecounter "TSC"  frequency 90205147 Hz

Is it anywhere close to the real speed of your CPU?

I have an old Dell Pentium 90 that randomly boots up at a reported processor
speed of 55, 76, 83, 87 and 89 MHz. I have to keep rebooting over and over
until it finally settles in at 90.21 MHz. If I leave it at anything below 85
MHz, I get "calcru" errors non-stop...

There's also a solution in the archives (if they're up yet) about setting
the TSC value (machdep.tsc_freq) with sysctl, but it's never worked for me.

BTW, I think this is a hardware fluke, not really FBSD's fault. My Dell P166
server at work has *never* given me fits like my P90 machine does...

--Dan

**  The thing I like most about Windows 98 is...
**  You can download FreeBSD with it!




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