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Serious Serious
Reported By: Elevate Software
Reported On: 3/19/2004
For: Version 4.04 Build 1
# 1635 Random Concurrent Updates Mixed with Reads Can Cause AV During Searches and Reads

It is possible that during reads, a session will get an AV if it detects changes to the table and must restart the read process after refreshing its buffers.

Comments Comments
This is also an issue in 3.27 and earlier. Basically the engine was trying to un-pin a buffer that was already freed due to the change detection process of freeing all buffers during a read.

Resolution Resolution
Fixed Problem on 3/20/2004 in version 4.05 build 1