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| Title | Memory reference errors and Windows crashes | |
| Author | Pete Huckelba, StataCorp |
When running Stata or using the data editor under Windows, some users have reported receiving the following message (or similar):
'The instruction at 00524f1e
referenced memory at f6de433a
The memory could not be written
Click OK to terminate the application'
This rare problem is caused by operating system or hardware errors and is not under Stata’s control. Clicking OK will terminate the Stata session. Because there is no way to return to the Stata session, any modified data will be lost.
The most common reasons for this problem are
This memory error is generally seen under consumer versions of Windows (95/98/98SE/ME) because they lack protected memory. These operating systems share memory, and it is possible that a memory location where Stata has stored some of its data has been overwritten by another application or by the operating system.
StataCorp recommends that users reboot their machine since the memory corruption/error may persist after the application has terminated. Failure to reboot may leave the system in an unstable state causing other applications to crash and/or system errors.
Faulty memory modules can also cause this problem. If you notice this error often, especially when using large datasets or when running other applications, your RAM may be faulty. Memory can be tested by computer repair centers, or you can download a memory tester from a provider such as Simmtester.com
Advanced users may also want to check their BIOS configuration. Some motherboards allow system and video BIOS settings to be cached. While this caching is intended to speed up processing, it often causes system instability. On unstable systems, we recommend that the following list be disabled:
Not all of the above options will be available on all motherboards. Generally speaking, most users will find an option to Load BIOS defaults or to Load Failsafe defaults. If you are experiencing any errors, use one of the above default settings or contact your motherboard manufacturer.
Warning: Make sure you have a copy of your BIOS settings before making any changes.
