[rtl] one or two bugs found

[Aleksandar Bakic <bakicale@brazil.tcimet.net>]

Hi,

I thought it would be good to report one or two bugs (one could be a
feature), while I am trying to patch the RM scheduler to better
support my (networking) application.

1. In <asm/rt_time.h>, RT_BIGGEST_PERIOD was set to 1000000 ticks,
   which is about 0.83 seconds. If you have a RT task with a longer
   period, it is never run under the RM scheduler. I modified this
   value to 10 * RT_TICKS_PER_SEC (i.e., 10 seconds) and tested it.

2. The weird bash problem caused by turning off the debugging in the
   RM scheduler is probably due to the statement "now = rt_get_time()"
   placed within "#ifdef DEBUG ... #endif", but there is a reference
   to "now" outside of any #ifdef (when promoting RT tasks from
   delayed to ready). I am yet to check whether moving the assignment
   to "now" before the #ifdef fixes the bug.

Aleks
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