Hi all,

I do hope someone can help me out here because it's a real stopper for my
app. I was getting sporadic VM crashes when calling my plugin, which I have
now got down to a very small subset of code to reproduce the problem. The
crash dump never has a stack trace and sometimes it fails so bad no dump is
produced. Essentially what I have is a 'C' method that returns and array of
4096 float values. I have taken away all the application C code and simply
load and return an array, so I am quite sure it's not the C code that's
breaking but somewhere in the C/Squeak interface. Here is what I have
(stripped to minimum for clarity). For testing I am running this flat out in
a loop. If I run 100,000 iterations I will usually but not always get a
crash. Is there anything I can do to isolate this a bit further?

Thanks in advance for any help.

Bob

The C code:
-----------

void process_test(float *results) {
	float a[4096];
	int i;
	float f = 0.0;
	for(i=0;i<4096;i++){
		a[i] = f;
		f = f + 1.0;
	}
	memcpy((void *)results, a, 4096*sizeof(float));
}

The plugin code which is translated and compiled with the C code:
----------------

test: data
	self export: true.

	self 	primitive: 'test'
			parameters:#(FloatArray).

	(self cCode: 'process_test(data)').
	^data.

The calling code:
-----------------

primTest: data
  	<primitive: 'test' module:'SDRDttSpDSPPlugin'>
	Transcript show: 'Primitive Test failed'.
  	^ false

Finally, the method I call:
------------------

test
	|data|

	data := FloatArray new: 4096.
	self primTest: data.
	^ data.

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