Re: Issue with RTAI on different PC Hardware

On 01/10/2017 03:02 PM, Onno Martens wrote:
>
> Ok. I guess I have to compile a new kernel with a new Linux 
> distribution and new RTAI for the first advice as I am still running 
> RTAI 4.0 on Linux Kernel 3.8.13. That will take some time. Or is there 
> a shortcut?
>
You do not have to compile a new kernel and distribution, but just a new 
kernel. You have just to compile a new kernel supported by an RTAI 
patche foun in VULCANO CVS.  FYI, the oldest one supported by VULCANO is 
linux-3.10.32.
In fact I've run a copy of VULCANO under linux-4.1.18 on a 10 years old 
DEBIAN distribution. Since you have a working kernel .config and a 
powerful machine, the whole process of installing a new linu kernel and 
rtal will take non more than 1/2 hour.

I insist on supporting the idea of a possible check also without a GUI, 
if possible.

Paolo.


> My Desktop environment is GNOME under a Debian 7.5 Distribution. I 
> used Qt Toolkit for development of my GUI. Both applications, user 
> space application as well as kernel modules are started via a script, 
> that inserts the modules and so on.
>
> *Von:*Paolo Mantegazza [mailto:[email protected]]
> *Gesendet:* Dienstag, 10. Januar 2017 14:28
> *An:* Onno Martens <[email protected]>; [email protected]
> *Betreff:* Re: AW: [Rtai] Issue with RTAI on different PC Hardware
>
> I would not be so sure that SMI shows up just in the way you believe 
> it to.
> My suggestion is to download VULCANO CVS and then use the tool found 
> there and monitor SMI on line.
> It might tel you something more.
>
> You did not say anything about your graphic environment.
>
> Paolo
>
> On 01/10/2017 01:24 PM, Onno Martens wrote:
>
>     Hi Paolo,
>
>     I googled the SMI Issue and found out that these kind of issues
>     occur periodically every 32 or 64 second. I ran the latency test,
>     which didn’t show a certain “hiccup” in that time grid. My chipset
>     is Intel H61.
>
>     Maximum latency in that test is between 258744 and 458393 over a 5
>     minute test run. Minimum latency at -1830.
>
>     User space application has a GUI, kernel application communicates
>     with user space application via shared memory.
>
>     Best regards,
>
>     Onno
>
>     *Von:*Paolo Mantegazza [mailto:[email protected]]
>     *Gesendet:* Dienstag, 10. Januar 2017 11:59
>     *An:* Onno Martens <[email protected]>
>     <mailto:[email protected]>; [email protected] <mailto:[email protected]>
>     *Betreff:* Re: [Rtai] Issue with RTAI on different PC Hardware
>
>     Are you working within the X environment, or just using
>     alphanumeric consols? Have you checked for possible SMI problems?
>     Paolo
>
>
>

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