OA42600: DEVELOPMENT FIXES

Obtain the fix for this APAR.

APAR status

• Closed as unreproducible in next release.

Error description

• Development fixes
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * All users of IBM Communications Server for z/OS Version 2    *
  * Release 1                                                    *
  * E2827/K                                                      *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * ZZ020581 InOpDump by ISTSRIS8: ISTSRIS8 InOpCode 001 Running *
  * 300 Clients and Memory Thrashers (15989)                     *
  * ZZ020108 AB/S0DC2 0016 ISTSRROP (15252)                      *
  * IQP040I UNRECOVERABLE ERROR DETECTED FOR PCIE FUNCTION 0061  *
  * (16036)                                                      *
  * ZZ020611  InOpDump by ISTSRIWI: ISTSRIWI InOpCode 100 200    *
  * clients and 512M real memory thrasher (16011)                *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Apply fix.                                                   *
  ****************************************************************
  15989
  Multiple INOPDUMPs can be requested when a devices fails, when
  in most cases only the first reason for the failure should be
  dumped.  This is particularly likely when the reason for the
  failure in message IST1578I is module ISTSRIS8, code 100, which
  is a devices internal read error.  
  15252
  The DLC is acquiring storage for the entire ICM space when it
  only needs to acquire storage for how much of the space it
  actually uses and backs.
  16036
   PCIE EVENT CODE = 0002 occurs after a failover occurs for a
  link.
  16011
  The  DLC is not retrying temporary failures enough times on the
  datapath.
  

Problem conclusion

• 15989
  Only take one INOPDUMP when all stacks are made inoperative for
  a single device failure. 
  15252
  Acquire only the storage used within the ICM space.
  16036
   Corrected EZBSRUTL to set the the associated staging buffer DMA
  address in the PSAC being modified for the new link.
  Previously, the staging buffer DMA address associated with the
  failing link was left in the PSAC.  This can lead to invalid DMA
  addresses being calculated if the new formatted PSAC is not
  transmitted over the new link.  The invalid DMA address will
  result in a PCIE EVENT CODE 0002 when the adapter reads from the
  invalid DMA address.
  16011
  Retry for an appropriate length of time on the datapath. 
  

Temporary fix

Comments

• No additional comments.
  

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  UA69685

Modules/Macros

• ISTSRIRS ISTSRIWI ISTSRRIE ISTSRIS8 ISTSRROP ISTSRIWC ISTSRIDQ
  

Fix information

• Fixed component name

  VTAM V4 MVS/ESA

• Fixed component ID

  569511701

Applicable component levels

• R210 PSY UA69685

     UP13/07/17 P F307

Fix is available

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