Bug #59447 error come as Attempted to read or write protected memory.
Submitted: 12 Jan 2011 14:54 Modified: 12 Feb 2011 16:49
Reporter: Balanna Nadikude Email Updates:
Status: No Feedback Impact on me:
None 
Category:MySQL Workbench: SQL Editor Severity:S3 (Non-critical)
Version: OS:Windows (windows XP)
Assigned to: CPU Architecture:Any

[12 Jan 2011 14:54] Balanna Nadikude
Description:
stack trace of the bug
-------------------------
-------------------------
Exception = System.AccessViolationException
Message = Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
FullText = System.AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
   at Sql_editor.check_sql(Sql_editor* , Boolean )
   at MySQL.Grt.Db.Sql.Sql_editor.check_sql(Boolean sync)
   at MySQL.Grt.Db.Sql.SqlEditor.CheckSql(Boolean sync)
   at MySQL.Grt.Db.Sql.SqlEditor.RunBackgroundAction(Boolean sync)
   at MySQL.Grt.Db.Sql.SqlEditor.BackgroundActionTimer(Object obj, EventArgs args)
   at System.Windows.Forms.Timer.OnTick(EventArgs e)
   at System.Windows.Forms.Timer.TimerNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

How to repeat:
step1. using my sql workbench on windows i inserted around 42710 rows in one table and 42000 rows in another table.
After that i accessed the tables to search functionality using php pages for a particular column with contains value of that column. 

then i saw this error on my mysqlworkbench window as a popup windows. the popup window error mesaage sent you as stack trace above.
[12 Jan 2011 16:49] Valeriy Kravchuk
What exact version of MySQL Workbench, 5.2.x, do you use?
[13 Feb 2011 0:00] Bugs System
No feedback was provided for this bug for over a month, so it is
being suspended automatically. If you are able to provide the
information that was originally requested, please do so and change
the status of the bug back to "Open".