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Date:      2 May 96 01:41:57 GMT
From:      peter@jhome.DIALix.COM (Peter Wemm)
To:        freebsd-current@freebsd.org
Subject:   Re: "calcru: negative time: -nnnnnn usec"
Message-ID:  <peter.831001317@jhome.DIALix.COM>
References:  <199605012013.WAA10882@uriah.heep.sax.de>, <15423.830987208@time.cdrom.com>

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jkh@time.cdrom.com (Jordan K. Hubbard) writes:

>Uh, it IS an i486!  A 486/DX2 66 to be precise.  The same one that
>runs BSD/OS when we're doing that sort of testing (throck.cdrom.com).

>					Jordan

On this 486DX266, it started a few days ago (On April 28, 2am, GMT+8h)
FreeBSD jhome.DIALix.COM 2.2-CURRENT FreeBSD 2.2-CURRENT #347: Thu Apr 25 10:51:56 WST 1996     peter@jhome.DIALix.COM:/home/src/sys/compile/JHOME  i386

This was one of the more "exciting" events:
Apr 28 14:21:03 jhome /kernel: calcru: negative time: -172081 usec
Apr 28 14:21:19 jhome /kernel: calcru: negative time: -257545 usec
Apr 28 14:24:12 jhome /kernel: calcru: negative time: -82060 usec
Apr 28 14:24:12 jhome /kernel: calcru: negative time: -244550 usec
Apr 28 14:24:12 jhome /kernel: calcru: negative time: -339981 usec
Apr 28 14:24:12 jhome /kernel: calcru: negative time: -6597403 usec
Apr 28 14:24:12 jhome /kernel: calcru: negative time: -3501 usec
Apr 28 14:24:12 jhome /kernel: calcru: negative time: -2851 usec
Apr 28 14:24:12 jhome /kernel: calcru: negative time: -2505986 usec
Apr 28 14:24:12 jhome /kernel: calcru: negative time: -1009722209 usec

The NFS server locked up at this point, and I had to reboot jhome to get
the other machines out of disk wait.

This is before Bruce's clock changes...

I've not seen it on an I586 running the same age -current kernel.

-Peter

>> As Jordan K. Hubbard wrote:
>> 
>> > I've seen this message on every 2.2-SNAP I've rolled recently, though
>> > I initially wrote them off to my machine's clock perhaps not being set
>> > correctly.
>> 
>> Upgrade your machine to an i486. :-)
>> 
>> -- 
>> cheers, J"org
>> 
>> joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE
>> Never trust an operating system you don't have sources for. ;-)




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