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Need to know the sugnificance of maxdsiz and maxdsiz_64bit Kernel parameters

Occasional Contributor

Need to know the sugnificance of maxdsiz and maxdsiz_64bit Kernel parameters

Need to know the sugnificance of maxdsiz and maxdsiz_64bit Kernel parameters
3 REPLIES
Honored Contributor

Re: Need to know the sugnificance of maxdsiz and maxdsiz_64bit Kernel parameters

These are fencs to prevent runaway programs from using all of virtual memory. maxdsiz controls the maximum size the data area can be in a 32 bit program. Default is 64megs, max is 970 megs or 1750 megs when using the EXEC_MAGIC capability of quadrant mapping.

maxdsiz_64 controls the maximum data size of a 64bit program.

As with all kernel parameters, there is online help in SAM for these parameters.


Bill Hassell, sysadmin
Honored Contributor

Re: Need to know the sugnificance of maxdsiz and maxdsiz_64bit Kernel parameters

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Trusted Contributor

Re: Need to know the sugnificance of maxdsiz and maxdsiz_64bit Kernel parameters