Application hangs when spyLib is used !!!


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Application hangs when spyLib is used !!!

Postby gouthammp » Fri, 04 Feb 2005 13:44:25 GMT

Hi Techi helpers,

I wanted to know the CPU utilization of all the tasks running in my
application & hence used spyLib. Few minutes after running the command
'spy' in shell, the application crashes !!! Did anybody experienced
this behaviour & is there any way to come out of this problem?
Thanks in advance.


Re: Application hangs when spyLib is used !!!

Postby Harry Yu » Fri, 04 Feb 2005 17:42:00 GMT

spy will use the tuxiliary timer,
if ur system has only one the auxiliary timer,
and if ur app will use the auxiliary timer then they will conflict with
each other.

Harry Yu

Re: Application hangs when spyLib is used !!!

Postby Jeff C » Fri, 04 Feb 2005 21:23:36 GMT

Someone else already indicated that this could be an AuxClk conflict.

Another possibility is that your application code has a remaining race 
condition that
normally just "works out" (perhaps because there are two tasks at the same 
priority that share
a data structure that needs to be protected but is not).

If these two (or more) tasks normally (through luck) basically end up 
running "in order" each
time then there would be no problems. But, when the spy task periodically 
runs to print
it would offer up a chance for a context switch to a different task as spy 

Something else to think about.

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