[ECOS] Signals not being Delivered

["Brian D. Bolinger" <bbolinger at logikos dot com>]

I'm using POSIX calls (timer_create and timer_settime) to create a timer
that expires every 10 milliseconds and delivers one of the real-time
signals to the process upon expiration.

It works great on the on the Linux synthetic target platform.  When I
move to a SH3 development board, the signal is only being delivered
once.

Debugging the software showed me the following things:
1.  If you put a break point in the signal handler, and continue when it
hits the break point, signals will continue to be delivered
indefinitely.
2.  If the timer is set up in a thread that repeatedly calls sleep(1) in
an infinite loop, between 5 and 7 signals will be delivered before they
mysteriously stop.
3.  If the timer interval is increased to 100 milliseconds, everything
operates correctly.  clock_getres returned 10 milliseconds.
4.  The clock_gettime function indicated that CLOCK_REALTIME was still
running.

Are there known problems with signal delivery on certain targets?
Anyone know of any clever workarounds other than increase the timer
interval?

Thanks,
Brian Bolinger.