Hi,
>> Recall that up to Xenomai 2.4 RTDM device/socket closing may fail (with
>> -EAGAIN) when some other thread is currently using it and doesn't
>> release it immediately when being "asked". That means for now you should
>> loop over [rt_dev_]close as long as EAGAIN is returned.
>
> Roland, could you please check the return code of [rt_dev_]close.
> Nevertheless, I'm still puzzled why the socket shows up in
> /proc/rtcan/sockets because rtcan_raw_close() is called before returning
I have been battling with this all morning. I close with
do{
ret=rt_dev_close(can_fd);
//printf("%d",ret)
while(ret!=-9)
but this only works (without fail) if I uncomment the printf line. I
have now tried to put in a sleep(1) command instead but due to the crash
caused by commenting out hte crash (does not come out of loop) I am now
trying to save my filesystem. :( :(.
> -EAGAIN and the error mask shown there is weired as well.
> Roland, do you perform the open and close in a serialized way (same
> task) and in nrt context?
I call the rt_dev_close in non-real time code if that is what you are
asking. Same with the init AFAIK. I will post the code if I can retrieve it.
Roland
>
> Wolfgang.
>
>
>
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