VS is assigned a disabled HTTP policy referring to a pool group object. This may lead to a SE crash if a read command is executed against the pool group object.
The trigger for the crash is :
If a pool group is associated via a policy to a virtual service and that rule/policy is disabled, trying to do a show command with the "detail" attribute for the poolgroup object can lead to an SE crash.
Workaround:
Remove the disabled httppolicy rule from the virtual service configuration.
Fix:
This bug will be fixed in 31.2.1 onwards.