Re: Cannot get basic latency test to work on Intel platform

Hi Bill,

The hangs you mention, well could be similar to the ones I was experiencing
related with Ubuntu console terminal. Could you try launching the tests
from within the tty1-6 terminal consoles or from "xterm" console instead of
the default ubuntu terminal console?

If this works,probably in the latest Vulcano CVS you will find the issue
fixed.

Asier.


On Mon, Feb 27, 2017 at 10:22 AM, Paolo Mantegazza <
[email protected]> wrote:

> Retry the latest Vulcano CVS.. LIkely it will change nothing, but just to
> know.
> In any case before trying any test watch first what happens when you work
> for a bit of time with Linux after having insmoded rtai_hal.ko.
> Did you try it on machine that was running RTAI well already?
> Paolo.
>
>
> On 02/27/2017 07:29 AM, Bill Jenkins wrote:
>
>> Hi Everyone,
>>
>> I have been trying to get RTAI up and running with the latest
>> rtai-5.0-test2
>> running on a patched 4.1.18 kernel on Intel processors. It seems to me
>> that this should work, as there is nothing special I am trying to do yet
>> other than just run the latency test in the test suite.
>>
>> There must be something I am not doing correctly, because it always fails
>> the same way and I have tried this on several different motherboards
>> (processors
>> I've tried so far include Atom x5, i3, and 3160 braswell).
>>
>> After patching the kernel and doing the install of rtai, the system
>> always hangs
>> when I try to run the kern/latency/run test. The hang happens when
>> insmod'ing
>> rtai_sched.
>>
>> Here are the basic steps I've tried on each system:
>>
>> 1. Install Ubuntu 16.10 (I've also had this problem with Ubuntu 14.04)
>> 2. Install gcc/g++ 4.9
>> 3. Get 4.1.18 kernel from kernel.org, configure it using localmodconfig,
>> and then
>>         build/install it and reboot into 4.1.18.
>> 4. Get RTAI 5.0-test2 and patch the 4.1.18 kernel with it.
>> 5. Build/install patched 4.1.18 and reboot into the patched 4.1.18 kernel.
>> 6. I take the default configuration values in RTAI, with the exception of
>> changing
>>         the number of CPUs to 4. Then build/install RTAI.
>> 7. Try to run the testsuite/kern/latency test and the system hangs.
>>
>> Anyone know what I might be missing? I can't imagine that such a simple
>> case on Intel processors does not work.
>>
>> Thanks in advance for any help,
>> Bill
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>
>
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