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DOS 3.2 Stack Information
DocumentID: 633396
Revision Date: 29-Feb-96 3:03:15 PM

The information in this document applies to:
WordPerfect® 5.1 for DOS

Problem

Solutions: Customers using DOS 3.2 will need to include a Stack command in their CONFIG.SYS file. The default stack value for machines other than 8086 or 8088 is 9,128 (meaning 9 internal stacks of 128 bytes each). This value would only need to be increased if the user had a "large number of hardware devices" installed and is getting an error message such as "FATAL: Internal Stack Failure, System Halted".

To add the stack command to the CONFIG.SYS file it would be entered as STACKS=9,128. Some users have set the stack as high as 64,128 to make it large enough to hold the interrupt signals. One should also be aware that the stacks= value will affect the amount of DOS memory available, e.g. the default uses 9x128 = 1,125 bytes of DOS memory, while the suggested value above uses 64x128 = 8,192 bytes of DOS memory.

Some users may wish to completely disable the internal stack switching with the CONFIG.SYS command STACKS=0,0. No problems have been reported from customers using the stacks=0,0 command. If the user decides to set the stacks in this manner they would have the additional advantage of saving some valuable DOS memory.

Answer:

Details:


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