On Sunday 17 May 2015 12:59:45 Jon Elson wrote:
> On 05/17/2015 07:54 AM, Gene Heskett wrote:
> > Hello all;
> >
> > I didn't mention in recent msgs to users, but I am now convinced it
> > is LCNC that is doing the crashing, it is still the old 10.04-4 LTS
> > on the milling machine, and it went away 3 times yesterday while I
> > was sharpening a tool to do the polygroove pulleys with. Screen
> > border clock stops, no mouse pointer, no response from the keyboard,
> > and any ssh -Y sessions into it from this machine are closed.  And
> > always when I had walked away to do something else, leaving it idle
> > but running.
> >
> > The box runs normally for days, even months, IF LCNC isn't running.
>
> I'd suggest you check to make sure the RT code is not using
> up too much CPU time.  Real time overruns can cause hard
> crashes, when it needs to start an RT thread that is still
> running.  Have you run the latency test for a long time, and
> also while starting and stopping lots of heavy graphical
> applications?
>
> Have you searched the system log for any reports from the RT
> system?

Yes, there are none.  It never gets a chance to log whatever is doing it.

Its crashed 4 times today & when its running, the display is slower than 
I recall for updates.  Since I am software stepping, when I next reboot 
it, I will raise the base_thread to 30 u-secs just for S&G's.  I believe 
it was 27 the last time I checked.

> Jon

Do we hve a survey util that checks for isolcpus settings, and lack of 
that hyperthreading we all turn off?

Thanks Jon.

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Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>

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