Dear:
I have compile the cocoos in xc8, , the original version is ok,
and it report an error, after I add the os_tick() into timer ISR.
the error said that there are reentrant issue, and blablabla.... when I "\" the os_tick(), it will fine.
this is the error:"os_task.c:478: advisory: (1510) non-reentrant function "_os_task_clear_wait_queue" appears in multiple call graphs and has been duplicated by the compiler"

I know the different if reentrant function and usual function. But I am not sure it is right or not to add reentrant before every function in the code...
I don't know why you guys works well. maybe the compiler is different...
I use mplabx and xc8 v1.44
Thanks for any following..

BR
Zona.W