Re: questions about rtai-lab and qrtailab

Please, try what attached and report.
Paolo

On 10/17/2017 09:33 AM, Tom wrote:
> Hi roberto,
>
> It is good , it works. thanks
>
> tom@shanghai
>
>
>
> At 2017-10-17 15:05:43, "Roberto Bucher" <[email protected]> wrote:
>
>     Hi Tom
>
>     Can you try the attached files?
>
>     Ciao
>
>     Roberto
>
>     On 10/17/2017 02:58 AM, Tom wrote:
>>     I am using it locally.
>>
>>     host  i5-6200  64bit cpu
>>     virtualbox 5.1.14
>>     ubuntu14.04
>>     gcc 4.8.4
>>
>>     it will core-dump here
>>
>>     int QRtaiLabCore::connectToTarget()
>>     {
>>     char buf[128];
>>     sprintf(buf, "Trying to connect to %s",
>>     targetthread->getPreferences().Target_IP);
>>     statusBarMessage(tr(buf));
>>     *qrl::RT_RPC(targetthread->getTask(),
>>     TargetThread::CONNECT_TO_TARGET, 0);*
>>
>>
>>     tom@shanghai
>>
>>
>>     在 2017-10-16 18:23:17，"Paolo Mantegazza"
>>     <[email protected]> 写道：
>>
>>         On 10/16/2017 11:17 AM, Tom wrote:
>>>         From
>>>
>>>         https://www.rtai.org/userfiles/downloads/RTAILAB/qrtailab-0.1.12.tar.bz2
>>>
>>         Qrtailab has been used because of the EFLTK troubles in
>>         setting RTAILab on 64 bits machines. A few fixes have made it
>>         work reliably for our application at hand, but we are not yet
>>         at ease with its internals.
>>
>>         Then is something that should be cared of. I see that RT_RPC
>>         is systematically called  with a null pointer, nonetheless no
>>         crash happens in the use I'm seeing at work here around.
>>
>>         How are you using it (locally vs distributed).Do you witness
>>         any crash without the fix you are pointing at?
>>
>>         Paolo
>>
>>>
>>>
>>>
>>>         At 2017-10-16 17:00:49, "Paolo Mantegazza"
>>>         <[email protected]> wrote:
>>>
>>>             I'll pass the question to the scicoslab interface expert.
>>>             On my side I would like to know where did you take
>>>             qrtailab from?
>>>             Paolo
>>>
>>>             On 10/16/2017 10:02 AM, Tom wrote:
>>>>             Hi, all
>>>>
>>>>             I am new to rtai and trying to use rtai-lab with
>>>>             scicoslab.
>>>>             Config:
>>>>             linux 3.18.20
>>>>             rtai 5.0.1
>>>>             scicoslab 4.4.1
>>>>             qrtailab-0.1.12
>>>>
>>>>             I think function `set_double' in rtmain44.c goes wrong
>>>>             when running on x86_64 arch.
>>>>               unsigned long l = ((unsigned long *)from)[0];
>>>>               unsigned long h = ((unsigned long *)from)[1];
>>>>             because unsigned long would take 8 bytes.
>>>>
>>>>             And I think there should be a null pointer guard before
>>>>             assignment in qrtailab/src/qrtailab.h  line 115 
>>>>             function RT_RPC
>>>>             *reply = (unsigned int)ret;
>>>>             to
>>>>             if (reply)
>>>>                     {
>>>>                           *reply = (unsigned int)ret;
>>>>                     }
>>>>
>>>>             regards.
>>>>
>>>>             tom@shanghai
>>>>
>>>>
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>>>>
>>>>
>>>>
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>>>
>>>
>>>
>>>
>>>         【网易自营】好吃到爆！鲜香弹滑加热即食，经典13香/麻辣小龙虾仅75元3斤>>
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>>>
>>
>>
>>
>>
>>     【网易自营】好吃到爆！鲜香弹滑加热即食，经典13香/麻辣小龙虾仅75元3斤>>
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>>
>>
>>
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