PR# 12031 Another Internal Error on typing Ctrl+Tab

Problem Report Summary
Submitter: peter_gummer
Category: EiffelStudio
Priority: High
Date: 2007/02/07
Class: Bug
Severity: Serious
Number: 12031
Release: 6.0.6.6451
Confidential: No
Status: Closed
Responsible:
Environment: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.1) Gecko/20061204 Firefox/2.0.0.1
Synopsis: Another Internal Error on typing Ctrl+Tab

Description
After reporting issue 12030, I continued working for haf an hour without any problem.

Then Ctrl+Tab suddenly gave me the error below. I was just working between two classes, using Ctrl+Tab between the two classes and the Features tool a lot at the time of the error.

I hit Ignore and typed Ctrl+Tab again. This time it worked. I was able to keep working.
To Reproduce
******************************** Thread exception *****************************
In thread           Root thread            0x0 (thread id)
*******************************************************************************
-------------------------------------------------------------------------------
Class / Object      Routine                Nature of exception           Effect
-------------------------------------------------------------------------------
SD_ZONE_NAVIGATION_DIALOG
                    select_label_and_destroy @1
                                           Segmentation violation:
<0000000004E84D98>                         Operating system signal.      Fail
-------------------------------------------------------------------------------
SD_ZONE_NAVIGATION_DIALOG
                    select_label_and_destroy @1
<0000000004E84D98>                         Routine failure.              Fail
-------------------------------------------------------------------------------
SD_ZONE_NAVIGATION_DIALOG
                    on_key_release @3      
<0000000004E84D98>                         Routine failure.              Fail
-------------------------------------------------------------------------------
EV_KEY_ACTION_SEQUENCE
                    call @21               
<0000000004E9B9F0>  (From ACTION_SEQUENCE) Routine failure.              Fail
-------------------------------------------------------------------------------
EV_KEY_ACTION_SEQUENCE
                    call @3                
<0000000004E9B9F0>  (From EV_LITE_ACTION_SEQUENCE)
                                           Routine failure.              Fail
-------------------------------------------------------------------------------
EV_SHADOW_DIALOG_IMP
                    process_standard_key_release @11
<0000000004E84E50>  (From EV_WIDGET_IMP)   Routine failure.              Fail
-------------------------------------------------------------------------------
EV_SHADOW_DIALOG_IMP
                    on_key_up @1           
<0000000004E84E50>  (From EV_WIDGET_IMP)   Routine failure.              Fail
-------------------------------------------------------------------------------
EV_SHADOW_DIALOG_IMP
                    window_process_message @25
<0000000004E84E50>  (From WEL_WINDOW)      Routine failure.              Fail
-------------------------------------------------------------------------------
EV_SHADOW_DIALOG_IMP
                    process_message @22    
<0000000004E84E50>  (From WEL_COMPOSITE_WINDOW)
                                           Routine failure.              Fail
-------------------------------------------------------------------------------
WEL_DISPATCHER      window_procedure @7                                 
<0000000009FED350>  (From WEL_ABSTRACT_DISPATCHER)
                                           Routine failure.              Retry
===============================================================================
Problem Report Interactions
From:larryl    Date:2007/03/13    Status: Closed    Download   
At revision#67274, this bug is fixed.
Thanks for your report.