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From: 5645an@gmuvax.gmu.edu
Newsgroups: comp.sys.next
Subject: VM_ALLOCATE PROBLEMS ... HELP!
Message-ID: <1991Jun9.105525.51402@gmuvax.gmu.edu>
Date: 9 Jun 91 15:55:25 GMT
Organization: George Mason University, Fairfax, VA.
Lines: 20


I am having a problem with virtual memory allocation in a program. It seems to occur at memory intensive points during execution. The following line of code mallocs some memory (numPts = 3708, so 14,832 bytes):

    line = (int*)malloc((numPts)*sizeof(int));

I get an error message from malloc -
		failed on vm_allocate
		
but it still returns a value for the pointer (not NULL)

	(gdb) p line
	$4 = (port_name_array_t) 0x294c000

Then later, I try to access this memory space, and of course, I get a segmentation fault.
	
	Program received signal 11, Segmentation fault

I have used the vm_statistics() function to print out available memory, and it appears I still have some. 
Anyone have any suggestions
?