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- ┌───────────────────────────────────────────────────────────────────────────┐
- │ OS/2 2.0 Technical Tips │
- │ From the │
- │ OS/2 Technical Support Team │
- │ Boca Raton, Florida │
- │ │
- ├───────────────────┬─────────────────────────────────────┬─────────────────┤
- │ File Name │ Description │ Number of pages │
- ├───────────────────┼─────────────────────────────────────┼─────────────────┤
- │ HNGTR.FAX │ OS/2 Traps and Hang Information │ 2 │
- └───────────────────┴─────────────────────────────────────┴─────────────────┘
-
-
-
- PROBLEMS WITH MACHINES HANGING AND TRAPPING
- -------------------------------------------
-
- There are situations which can cause an OS/2 system to hang or display
- an error (a "Trap"). These can come in many flavors and be the result of
- many different things. Most of these problems are low-level problems due
- to hardware or non-OS/2-supplied device drivers since these programs can
- access any part fo the system.
-
- Somce applications may also trap as a result of the application code. These
- are different in that they will only affect the application and leave the
- system intact.
-
- This document describes some of the situations where the operating system
- may hang to trap.
-
-
-
- TRAP0002 ( 0002 ):
- -----------------
-
- Memory failures running under OS/2 could display a TRAP0002 or a
- TRAP000C error message. The OS/2 error message will inform the
- user that the operating system has detected a hardware memory
- error on the system board or on an option card, in many cases.
-
- The most common type of TRAP0002 error is caused by memory, but
- it may on some occasions be caused by a system board or a
- micro channel adapter failure. It may also be caused by other
- hardware error or software errors.
-
- A new Service Aid Diskette Utility ( SAD ) is now available from the supplier
- of PS/2 hardware which will provide additional help in determining which of
- four possible causes of a TRAP0002 error has occurred:
-
- 110 Error - System Board memory Parity Error
- 111 Error - Memory Expansion Adapter Parity Error
- 112 Error - Watchdog Timer Error (Could be Hardware or Software)
- 113 Error - DMA Arbitration Error(Could be Hardware or Software)
-
- In any of these events, you will need to replace memory modules in the system.
- On PS/2 systems, the SAD diskette will be able to tell you which module
- to replace. On Non-PS/2 systems, you will have to either contact the vendor of
- the system to try to interpret the memory location, or you will have to
- test replacing the modules one at a time until you hit the one that failed.
-
- *******************************************************************************
-
- Microsoft ( MS ) LAN MANAGER Version 2.2 is required in order
- to run under OS/2 2.0, as per Microsoft. If you are running LAN MAN
- 2.0, a device driver error may be generated at boot time from
- the config.sys stating problems loading the NETBEUI.OS2 driver.
- The interim workaround for running a release below 2.2 would be
- to run from a VMB ( Virtual Machine Boot ).
- You should contact Microsoft for availability of LANMAN 2.2.
-
- *******************************************************************************
-
- If you are experiencing a hang or trap on IBM PS/2 Models 90 or 95 you need
- to check the memory setup. Memory SIMMS must match on these systems, this
- includes memory speed, size and manufacturer.
-
- ******************************************************************************
-
-
- Northgate 386/33's that contain up to 8 meg on the
- motherboard and require a daughter card for 9-16 meg
- may have a defect in the daughter card that causes
- a trap 0002 in OS/2 2.0. The problem arises when more
- than 12 meg is on the system. OS/2 2.0 should run fine with
- 12 megabytes. You should contact Northgate for more information.
-
- ***************************************************************************
-
-
- On Compaq Laptops,the PWRCON.EXE from the User Programs Diskette
- for OS/2 Version 1.x, is not supported under OS/2 2.0.
- PWRCON is a program to allow a user to control power
- conservation on a battery operated system. It can be run from
- Config.sys, Startup.cmd or manually started.
- This program is not supported currently under OS/2 2.0. If the
- disk is formatted HPFS, it can cause a trap.
- You will need to contact Compaq for a new program.
- ***************************************************************************
-