INFORMIX SERVER / 5725A3900 / C10 - IDS 12.10

In recent versions a thread suspension feature is included and 
active by default. In the case of an assertion that would 
otherwise have led to a crash with thread suspension the 
instance will try to check if the affected thread is holding 
critical resources. If this is not the case the thread will be 
suspended only, avoiding the crash and leaving the opportunity 
to defer the instance restart to a more convenient time in the 
future. 
 
In this case currently (another defect is open to address this 
aspect of the default behavior) no shared memory dump will be 
written regardless of the DUMPSHMEM setting. 
 
For versions running on the Windows platform it has been 
observed that this thread suspension can lead to an unintended 
crash of the instance. 
 
To achieve a shared memory dump for better diagnostic abilities 
in this situation the thread suspension feature needs to be 
deactivated. 
 
This can be achieved by setting 
 
AFCRASH     0x481 
 
in the ONCONFIG file of the instance. After a restart you can 
verify the setting of AFCRASH with "onstat -g ras".

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* USERS AFFECTED:                                              * 
* All users on Windows platforms.                              * 
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* PROBLEM DESCRIPTION:                                         * 
* See Error Description                                        * 
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* RECOMMENDATION:                                              * 
* Update to IBM Informix Server 12.10.xC6                      * 
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Problem Fixed In IBM Informix Server 12.10.xC6

not known / see Local fix

Date  - problem reported    :
Date  - problem closed      :
Date  - last modified       :

19.08.2015
19.01.2016
19.01.2016

12.10.xC6