I have troubles that the output of printf does not always show on the
console.
for(int i = 0; i<500; i++)
{
printf("this is my output. 01234567890123.....\n");
}
After 240 lines, the output stops in the middle of the sentence without
a carriage return. The output of later printf calls appears after that.
Same behaviour when I compile the app for debug or release. Calling
fflush(stdout) does not make a difference.
My app links a shared object which controls a rtdm device driver.
The app and the shared object link xenomai and use the printf that is
wrapped by xenomai.
I couldn't reproduce it with a minimal cpp example.
When I add rt_task_sleep(1000*1000) the output is Ok.
When I start the app, I use the command line options
--print-buffer-size=16384 --print-buffer-count=4
--print-sync-delay=100. When i use print-buffer-size multiplied by 10,
the output is Ok.
Is this the normal behavior? This is difficult for me, as I use printf
for debugging. Printf never returned a negative number, so I can't
detect the problem in the code.
I'm running cobalt (dual kernel).
cat /proc/xenomai/version
3.0.4
ipipe
ipipe-core-4.4.43-x86-6.patch
uname -a
Linux my_pc 4.4.43 #1 SMP Tue May 9 13:34:48 CEST 2017 x86_64 GNU/Linux
Regards
Chris
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