On 02/23/2012 11:02 PM, Jeff Webb wrote:
> I was happy to see that printf now works from real-time POSIX threads in
> Xenomai 2.6.0. Unfortunately, I'm seeing some strange behavior that surfaces
> when I try to print the string "\n" by itself. When I run the attached
> example program, I get:
>
> $ ./printf_test
> start
> CPU time limit exceeded
> $
>
> IfI replace the two printf calls with rt_printf calls and #include <rtdk.h>,I
> get the expected result:
>
> $ ./rt_printf_test
> start
> 1
> 2
> 3
> 4
> ^C
> $
>
> The original example also works if these two lines:
>
> printf("%d", count);
> printf("\n");
>
> are replaced with:
>
> printf("%d\n", count);
>
> Can someone confirm if this a bug in Xenomai 2.6.0, something specific to my
> HW/SW installation, or some mistake in my test program?
I would bet the call to printf is replaced with something else (such as
putchar). Could you disassemble the test to check this?
Note that I have fixed similar issues in xenomai-2.6 current repository,
so you could give it a try.
--
Gilles.
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