[comp.sys.ibm.pc] bug in MSC 6.00A

ddl@husc6.harvard.edu (Dan Lanciani) (11/30/90)

In article <1990Nov27.214743.22138@arnor.uucp>, oleg@ibm.com writes:
| I just upgraded to 6.00A (maintenance release). Still have the same problem
| as with 6.00. I get compiler internal error:
| 
| 
|   cl /DKERNEL /DOS2 /c /Gs /Os /Asnw /Zpe /Fc /G2 uipc_so1.c
| uipc_so1.c
| uipc_so1.c(79) : warning C4017: cast of int expression to far pointer
| uipc_so1.c(142) : warning C4033: function must return a value
| uipc_so1.c(517) : warning C4017: cast of int expression to far pointer
| uipc_so1.c(847) : fatal error C1001: Internal Compiler Error
|                 (compiler file '@(#)regMD.c:1.110', line 4688)
|                 Contact Microsoft Product Support Services

	Yes, while compiling code also derived from the Berkeley
networking distribution I found the following:

The hundreds (i.e., every mtod construct) of internal compiler errors
from 6.00 were reduced to dozens in 6.00A.

All but one (!) of the remaining internal errors went away with
default optimization (== no -O switch at all).

The remaining error could be eliminated with -Od.

However, the resulting driver crashed immediately suggesting that
there might be some code generation errors as well...  Perhaps
6.1 will improve the situation.

				Dan Lanciani
				ddl@harvard.*