FIX: System Errors or Crash Debugging Large App in CodeView

 Last reviewed: September 16, 1997
Article ID: Q92732
4.00 4.01 4.05 | 4.00 4.01 
MS-DOS         | WINDOWS
kbtool kberrmsg kbbuglist kbfixlist

The information in this article applies to:

  • Microsoft CodeView for MS-DOS, versions 4.0, 4.01, and 4.05
  • Microsoft CodeView for Windows, versions 4.0 and 4.01

SYMPTOMS

When debugging a very large application with versions 4.0, 4.01, or 4.05 of the Microsoft CodeView debugger, stepping into, tracing into, or running an application can cause various errors which can cause the system to hang. The exact error depends on the environment in which CodeView is running.

CAUSE

CodeView versions 4.0, 4.01, and 4.05 do not determine the amount of available memory before loading an application.

RESOLUTION

Verify that memory is available through DPMI, XMS, or VCPI to load the CodeView application and the symbolic information for the application being debugged into extended memory. A minimum of 2048K extended memory is required.

Remove any unnecessary device drivers or memory-resident applications to increase the amount of available conventional memory.

STATUS

Microsoft has confirmed this to be a problem in CodeView versions 4.0, 4.01, and 4.05. This problem was corrected in CodeView version 4.1.

MORE INFORMATION

When CodeView is running in an MS-DOS window in the Microsoft Windows environment, stepping into the application may generate the following error message: 

   This application has violated system integrity due to an invalid
   fault and will be terminated.
When CodeView is run directly from MS-DOS and the HIMEM.SYS memory manager is installed, stepping into the application may generate the following error message: 

   run-time error R6915
   - DOSX16 : Unhandled exception
When CodeView is run directly from MS-DOS and the 386MAX memory manager is installed, stepping into the application may hang the system.

Additional reference words: 4.00
KBCategory: kbtool kberrmsg kbbuglist kbfixlist
KBSubcategory: CvwIss
Keywords : kb16bitonly
Solution Type : kbfix

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY.

Last reviewed: September 16, 1997
© 1998 Microsoft Corporation. All rights reserved. Terms of Use.