MySQL Bugs: #54781: Attempt to read/write protected memory

Bug #54781	Attempt to read/write protected memory
Submitted:	24 Jun 2010 14:38	Modified:	28 Jun 2010 20:22
Reporter:	Kerry Kurtz	Email Updates:
Status:	Closed	Impact on me:	None
Category:	MySQL Workbench: SQL Editor	Severity:	S2 (Serious)
Version:	5.2.22 CE Revision 6091	OS:	Windows (XP Pro SP3)
Assigned to:		CPU Architecture:	Any
Tags:	access fault, OSS, query browser

Description:
Was executing a query script. As the responses were occurring in the response pane clicked and dragged on the scroll bar of the script pane. When stopped dragging and let go of the mouse button the fault occurred prior to the window scrolling

How to repeat:
Unknown if repeatable (perhaps low memory conditions could exacerbate it)

Please, check if this ever happens with a newer version, 5.2.24.

After the fault the output tab/pane has a big red X. The only way of recovering is to shut down and start back up but since the query is still (apparently) running do not know what has been missed or had errors or ?

I've seen that "big red X" several times in the past, but had you tried to get it with 5.2.24, as suggested?

After testing for about 50,000 queries with 5.2.24 did not have the problem recur with the big red x in the output tab/pane.
One comment though, the performance in processing these queries totally stunk.
Even though each query (simple replace queries) was indicated as having used less than 10 milliseconds the queries would only be submitted about 1 or 2 per second. The drawing of the output kept it so busy that it took more than 5 seconds for a click on the stop/interrupt button to be recognized.