Dealing with servers and this issue
http://serverfault.com/questions/403732/anyone-else-experiencing-high-rates-of-linux-server-crashes-today
On Sun, 2012-07-01 at 00:07 +, Mark Sims wrote:
> ?
> ___
> time-
On Wed, 2012-05-23 at 13:07 +0930, Kim, VK5FJ wrote:
> Hi guys,
>
> About 40 minutes in ESR talks about bufferbloat and NTP skew issues;
>
>https://plus.google.com/118131797905622113230/posts/FBTdvYhR8qS
Thanks for posting this. It kicked off quite a bit of tinkering here
I also 'blue wire
All a bit off topic but..
Milliseconds are now worth a great deal.
In 2010 one large investment bank valued 1 additional msec of latency
between major financial markets at $120 Million per year.
This is in turn driving a lot of new fibre projects along new, shorter
great circle routes with the
I'll have another go at it
thanks for all the help
On Wed, 2011-02-16 at 22:37 +0000, Brendan Minish wrote:
> Interestingly it was not your normal tin whisker (I have seen a few of
> those, just..) it was a substantial one that had grown out from the
> stack of 2 Ceramic caps
Thank so much for taking the time to do this, it's genuinely much
appreciated
My replacement fet for the lamp assembly is on it's way from China and
I'll report back how I get on with the repair
73
Brendan
My
On 23/02/2011 15:29, Robert Watson wrote:
OK, Here is the result of my lunch-brea
On 17/02/2011 21:55, Laurence Motteram wrote:
I would just like to point out that SRS is one of the few companies who
still provide complete manuals with parts lists and circuit diagrams
(although circuits are only in the paper manuals, not the pdfs).
Might a kind soul with access to the paper
Interestingly it was not your normal tin whisker (I have seen a few of
those, just..) it was a substantial one that had grown out from the
stack of 2 Ceramic caps in series with the coil to the RF choke in
series with the DC supply to the lamp housing.
It might even have been a solder blob lef
an
MRF134 and have a go at replacing it but there may be other damage in
there
regards
Brendan
On 14/02/2011 18:53, Brendan Minish wrote:
Hello all
My SRS PRS10 ( http://www.thinksrs.com/products/PRS10.htm ) Rubidum
frequency standard was power cycled a few days ago, since then it has
n
On Tue, 2011-02-15 at 10:47 +0100, Magnus Danielson wrote:
> This has gone overboard. The T-bolt generates digital noise all by
> itself. It's the OCXO which would benefit most from a clean supply and
> isolation from the rest of the T-bolt except that temp-sensor.
Considering the T-bolt has 3
Hello all
My SRS PRS10 ( http://www.thinksrs.com/products/PRS10.htm ) Rubidum
frequency standard was power cycled a few days ago, since then it has
not achived rubidium lock.
I have tried a full rest and also further power cycles with no joy.
The SRS RS232 application reports the following pa
Thanks for all the help on this, I have made quite some progress and
learned a heap more about freeBSD along the way
So far I have rebuilt everything on freebsd 8, I ran into a few issues
with oncore related bugs in NTP
In particular this one
http://lists.freebsd.org/pipermail/freebsd-bugs/20
Hello All
I have a little NTP server based on this project
it's running nanoBSD (FreeBSD 7.0-RC1)
NTP ver ntpd 4.2.0-a
GPS module is now an oncore UT+
I have had this device running happily for a couple of years with a GT
in NMEA mode but I am having issues with configuring the oncore driver,
On Sat, 2008-01-26 at 22:25 -0600, Scott Newell wrote:
> Is the Soekris NET4521 an acceptable substitute for the '4501,
> assuming I'd like to build a precision clock input?
The NET4521 has the on board High performance timer so the PHK high
precision PPS hack will work.
My first NTP server was
Noting to do with time keeping but a number of years ago I was involved
with a Voyage thought the North West passage
The Autopilot in use on the boat works by learning it's corrections for
local magnetic deviation from the GPS system by watching the course. It
steers by Fluxgate compass but updat
I would like to be in for one unit
I am in Ireland and will gladly cover shipping costs
73
Brendan Minish EI6ZI
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On Mon, 2007-02-12 at 23:22 -0500, xaos wrote:
> I have written a Linux based program that interfaces with many
> Motorola receivers and provides a command line interface
> for all functions.
Thank you George.
I had been looking for something like this for a while. Install was easy
and it's a Ni
Here
http://www.rt66.com/~shera/setup_notes.html
In the troubleshooting section there's a note about A mysterious
problem.
I had this issue, I Wonder could it be related to your issue? In any
case the fix does not hurt so worth a try?
On Wed, 2007-01-17 at 17:05 -0600, Jason Rabel wrote:
> Ch
On Mon, 2007-01-01 at 21:47 +, Brendan Minish wrote:
> 2/ the GPIO0 pin is the second pin in from the left on the bottom row as
> seen with the board serial port facing you
before anyone kills a board I need to make this clearer!
with the serial port facing you JP3 is as follows
2
be here in the house.
Thank you to all here, especially PHK and John Ackermann for putting up
with all my Dumb questions
Also thanks to John for explaining to me exactly how this very clever
hack works.
regards
Brendan Minish
___
time-nuts mailing lis
On Sat, 2006-12-30 at 18:17 -0500, John Ackermann N8UR wrote:
>
> R61/R62 is the access point for the high-resolution timer in the CPU
> chip. Poul-Henning's extremely elegant hack has the PPS signal start
> the timer and at the same time bring the GPIO pin low. Since the GPIO
> is interrupt-dr
like jumping in at the deep end!
73
Brendan EI6IZ
On Sat, 2006-12-30 at 17:00 -0500, John Ackermann N8UR wrote:
> Brendan Minish said the following on 12/30/2006 03:44 PM:
>
> > I don't have a whole lot more time to spend on this right now, my BSD
> > knowledge is limited an
On the soekris board wiring the following instruction is given on the
febo site
http://www.febo.com/time-freq/ntp/soekris/index.html
Run a wire from the junction of R61/R62 (near the backup
battery) to one of the GPIO pins (I used PIO0, which is on JP3,
pin 3) and f
Hi Poul
thanks for your help on this
On Sat, 2006-12-30 at 20:50 +, Poul-Henning Kamp wrote:
> In message <[EMAIL PROTECTED]>, Brendan Minish writ
> es:
> >Ok I got quite a long way with this project but I've still run into some
> >issues
> >
> >1/
Ok I got quite a long way with this project but I've still run into some
issues
1/ NTPD does not seem to be aware of PPS or GPS devices. do I need to
patch it and recompile if so how? Can the nanobsd script handle
integrating the patch for me
2/ the console comes up on the serial port which we
On Fri, 2006-12-29 at 15:25 +, Poul-Henning Kamp wrote:
> The code size depends how much of FreeBSD you disable in the nanobsd
> build.
Hi Poul
Can you give me some pointers as to what I should be disabling.
I have been following the example here
http://elibrary.fultus.com/technical/index.j
Hi,
I have an old soekris net4521 board which I would like to reconfigure
as a GPS referenced NTP server
I have been looking at the pages the PHK has up on bot the soekris
projects and on nanoBSD and also
http://www.febo.com/time-freq/ntp/soekris/index.html
however I need some help with the F
On Tue, 2006-12-19 at 11:05 -0800, Brooke Clarke wrote:
> Hi Brendan:
>
> Keep in mind that this design does work and that the above items relate
> to optimization not bug fixes.
I currently have the Brooks Shera design disciplining my LPRO-101
without any mods and using the ADC connected direc
My original Question has sparked off quite an interesting discussion and
I learnt a lot
Since it seems that the Brooks Shera Project is not the optimum way of
GPS disciplining a Rubidium Oscillator can anyone here point me in the
direction of other DIY projects (or even ideas) that might yield a
Hi I am looking for info on using the Brooks Shera GPS-VCXO Controller
with an EFRATOM LPRO-101?
I currently have it locking an old and unknown single oven Xtal
oscillator this is working as well but I hope to replace this with the
LPRO-101
Has anyone any suggestions as to how best to choose the
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