DB2 FOR LUW / DB2FORLUW / A50 - DB2

Db2 tools accessing network interface (NIC) information,
db2haicu and db2instance, might fail with a segmentation fault
(memory fault/SEGV), if:
- there is a NIC, which doesn't have an IPv4 address assigned
or:
- there is no routes associated with one of the interfaces

For db2haicu, tool will fail on network configuration stage
(e.g. network tiebreaker setup), for db2instance, "db2instance
-list" will be affected.
If system is configured to dump a core (ulimit -c unlimited),
the core dump will show the following functions on the top of
the stack:
db2haicu:
sqlhaGetInfoForClusterObject
sqlhaUIListAllNICsInClus

db2instance:
sqlhaGetInfoForClusterObject
sqlhaCheckNetworkAdapterOnHost

This APAR is fixed in new release Db2 11.1 via IT25519.

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* USERS AFFECTED:                                              *
* ALL                                                          *
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* PROBLEM DESCRIPTION:                                         *
* See Error Description                                        *
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* RECOMMENDATION:                                              *
* Upgrade to Db2 10.5 Fix Pack 11 or higher                    *
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Assign IPv4 address or associate a route to each NIC

not known / see Local fix

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

07.01.2019
25.02.2020
25.02.2020