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- Troubleshooting Exception #6, #12, and #13 Reports
-
- Quarterdeck Technical Note #232 Filename: EX13FLOW.TEC
- by Michael Bolton CompuServe: EX13FL.ZIP
- Last revised: 4/26/95 Category: QEMM
-
-
- Subject: Quick troubleshooting procedures for Exception #6,
- #12, and #13 messages and system lockups.
-
- This document addresses Exception #6, #12 and #13 reports.
- These three Exceptions are so similar in cause, nature, and
- solution that they will all be covered by the information
- below. Any reference to an Exception in this document
- applies to an Exception #6, Exception #12, or Exception #13.
-
- Please note that sometimes QEMM cannot report an Exception to
- the screen; instead, a blank screen or a lockup occurs. For
- troubleshooting purposes, treat a system lockup or a blank
- screen (that accepts no input) to be the same as an Exception
- report.
-
- This troubleshooting procedure will isolate and resolve the
- conflict most effectively if you are able to reproduce the
- conflict at will (i.e., you know of a specific action or series
- of actions that will cause the conflict to occur). The reason
- for this is that this procedure follows a logical set of tests
- to determine when a conflict is occuring and when it is not. A
- conflict that randomly occurs is much more difficult to
- troubleshoot because you do not know for sure when the
- configuration being used is actually resolving the conflict.
-
- Q: What is an Exception report?
-
- Exceptions are generated by the protection mechanisms on your
- PC's processor (and not by QEMM), in response to an invalid or
- unusual condition. QEMM has the ability to detect exceptions
- and display relevant information to the screen. The report
- informs you what has happened so that you may take the
- necessary steps to resolve the conflict. Without QEMM's
- warning, your system may simply have crashed or hung without a
- message, or may have become unstable. For more detailed
- information about Exceptions themselves, please refer to
- Technical Note #142, "QEMM: Exception 13 Explained"
- (EXCEPT13.TEC).
-
-
- Q: How do I resolve the cause of my Exception report?
-
- A: Follow these steps:
-
- 1) Run through TROUBLE.TEC. This technical note (found in your
- QEMM\TECHNOTE directory) treats almost all potential causes of
- Exception reports with which QEMM might be involved, and does
- so in a very efficient way. Follow the steps in TROUBLE.TEC to
- determine which aspect of your system's configuration is the
- cause of the problem. TROUBLE.TEC is a general troubleshooting
- guide, and may refer you to still other technical notes to
- resolve specific conflicts.
-
- 2) If TROUBLE.TEC proves that QEMM is not involved, and Exceptions
- or crashes still persist with DOS' memory managers, contact the
- publisher of the application that is running when the problem
- occurs. Inform the publisher's technical support department
- that you have reproduced this problem using both QEMM and DOS's
- memory managers. This indicates a problem in which the
- specific memory manager is not involved. Contacting the
- manufacturer of the program is often the quickest way to
- resolve the conflict.
-
- 3) If TROUBLE.TEC shows that QEMM is involved with the problem,
- but does not point you towards a solution, Quarterdeck's
- technical support department is easily reached via electronic
- channels such as CompuServe (GO QUARTERDECK), Internet (mail
- qsupport@qdeck.com or the USEnet newsgroup
- comp.os.msdos.desqview), the Quarterdeck BBS UK 01245-496943
- or Ireland 353 1 2844383, or fax UK 01245-496941 or
- Ireland 353 1 2844380. When contacting Quarterdeck, be sure
- to explain the symptoms of the conflict and the results of
- the tests performed while following TROUBLE.TEC.
-
- You can also call our Technical Support line at
- UK 01245-494940 or Ireland 3515 1 2844144 for further assistance.
- When you call, please be at the machine that is
- experiencing the conflict.
-
- ******************************************************************
- * Trademarks are property of their respective owners. *
- * This and other technical notes may be available in updated *
- * forms through Quarterdeck's standard support channels. *
- * Copyright (C) 1995 Quarterdeck Corporation *
- ******************** E N D O F F I L E ***********************
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