APAR status
Closed as program error.
Error description
The remote channel pool process (amqrmppa) can encounter an access violation during client reconnect at MQ version 8.0 with SHARECNV(1) channels. A SIGSEGV FFST is generated from the amqrmppa process.
Local fix
Set the SHARECNV property to a value other than 1 on the server-connection channel.
Problem summary
**************************************************************** USERS AFFECTED: This issue affects users with MQ clients connecting over a server-connection channel with SHARECNV(1) Platforms affected: MultiPlatform **************************************************************** PROBLEM DESCRIPTION: The remote channel pool process (amqrmppa) at MQ version 8.0 has a heartbeat monitor thread to process heartbeats for SHARECNV(1) clients in an MQGET API call. During client reconnect the heartbeat monitor thread could incorrectly process a non heartbeat flow from the client which would free resources associated with the client connection. This would lead to an access violation when these resources were accessed.
Problem conclusion
The heartbeat monitor thread has been updated to not process non heartbeat flows during client reconnect. --------------------------------------------------------------- The fix is targeted for delivery in the following PTFs: Version Maintenance Level v8.0 8.0.0.5 The latest available maintenance can be obtained from 'WebSphere MQ Recommended Fixes' http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006037 If the maintenance level is not yet available information on its planned availability can be found in 'WebSphere MQ Planned Maintenance Release Dates' http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006309 ---------------------------------------------------------------
Temporary fix
Comments
APAR Information
APAR number
IT12196
Reported component name
WMQ BASE MULTIP
Reported component ID
5724H7251
Reported release
800
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2015-11-10
Closed date
2016-02-24
Last modified date
2016-02-24
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
WMQ BASE MULTIP
Fixed component ID
5724H7251
Applicable component levels
R800 PSY
UP
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Document Information
Modified date:
24 February 2016