MemMaker Err Msg: "SIZER: UMBs Overran List Buffer" (94772)

The information in this article applies to:
    Microsoft MS-DOS operating system 6.0
    Microsoft MS-DOS operating system 6.2
    Microsoft MS-DOS operating system 6.21
    Microsoft MS-DOS operating system 6.22

This article was previously published under Q94772


If you run the MS-DOS MemMaker utility on a system with a Periscope board, the following error message may be displayed:

SIZER: UMB's overran list buffer.


MemMaker detects the first 24 kilobytes (K) of protected memory used by the Periscope board, but does not detect the last 8K. Therefore, when MemMaker adds the x= parameter, it does not exclude a large enough range.


To work around this problem, add the x= switch to the device= line for EMM386 to exclude the C800-CFFF range. For example:
   device=c:\dos\emm386.exe x=c800-cfff

Modification Type: Major Last Reviewed: 11/23/1999
Keywords: KB94772