Subject: Re: clock lossage with -current on DS5000/240
To: Matthias Drochner <M.Drochner@fz-juelich.de>
From: Jason R Thorpe <thorpej@zembu.com>
List: port-pmax
Date: 05/04/2001 08:56:30
On Fri, May 04, 2001 at 02:28:28PM +0200, Matthias Drochner wrote:

 > The pmax (at least the 3maxplus) seems to massively lose
 > clock interrupts as soon there is some system (in particular,
 > network) activity.
 > A diskless (root on fta0 - FDDI) box which keeps a quite
 > accurate time normally was 3 seconds behind after a single
 > compile of "bash":

kthreads are apparently still running at splhigh on the MIPS -- should
get fixed soon.

 > 
 > ntpdc> peers
 >      remote           local      st poll reach  delay   offset    disp
 > =======================================================================
 > *zelf01          134.94.233.21    1   64  377 0.00183 -0.001696 0.00093
 > ntpdc> kerninfo
 > pll offset:           -0.001586 s
 > pll frequency:        6.655 ppm
 > maximum error:        0.023256 s
 > estimated error:      4.3e-05 s
 > [...]
 > 
 > [compile "bash"]
 > 
 > ntpdc> peers
 >      remote           local      st poll reach  delay   offset    disp
 > =======================================================================
 > *zelf01          134.94.233.21    1   64  377 0.00214  3.086226 0.00099
 > ntpdc> kerninfo
 > pll offset:           0 s
 > pll frequency:        512.000 ppm
 > maximum error:        0.556237 s
 > estimated error:      0.343926 s
 > 
 > 
 > ntpd is not happy, obviously...
 > 
 > Anyone an idea what caused it and how to fix this?
 > 
 > best regards
 > Matthias
 > 
 > 

-- 
        -- Jason R. Thorpe <thorpej@zembu.com>