On Tue, Feb 06, 2001 at 10:56:07PM +1300, Wayne Knowles wrote:
> 
> Hi Mark,
> 
> By the sounds of it the hardintr() function isn't being called, or the
> microtime() function is doing something weird.
> 
> Taking a look at the code I see that the hardintr() function is called
> only if the clock_started variable has been set.  This is only specific
> for the MAGNUM and is set in cpu_initclocks().  I assume that you have
> checked this variable has been set correctly.
> 
> You might be able to get a better handle on what is happening by adding
> the following debug printf to the end of the microtime() function
> 
>    printf("tv_sec=%ld, tv_usec=%ld\n", tvp->tv_sec, tvp->tv_usec);
> 
...

You were right, something is wrong with microtime.  I inserted a printf after
the call to microtime in kern_synch.c:ltsleep() and the first time around,
(while the process is still sleeping), I got "60" for sec, and "0" for usec!
The next time around, when the process should wake up, I got "60" again for
sec, and "1" for usec.  Then things lock solid.

It would seem that the timeval is not being properly populated.

I'll see what I can find...

-Mark