DTCRTD4844S Function IFINIT Out of Memory
APAR Identifier ...... PQ69567 Last Changed ........ 03/01/21
DTCRTD4844S FUNCTION IFINIT OUT OF MEMORY
Symptom ...... MS MESSAGE Status ........... CLOSED PER
Severity ................... 2 Date Closed ......... 03/01/08
Component .......... 5735FAL00 Duplicate of ........
Reported Release ......... 430 Fixed Release ............ 999
Component Name TCP/IP V2 FOR V Special Notice
Current Target Date .. Flags
SCP ...................
Platform ............
Status Detail: SHIPMENT - Packaged solution is available for
shipment.
PE PTF List:
PTF List:
Release 420 : UQ73183 available 03/01/21 (1000 )
Release 430 : UQ73184 available 03/01/21 (1000 )
Parent APAR:
Child APAR list:
ERROR DESCRIPTION:
RouteD machine intermittently is recycled by TCPIP because
of a storage contraint problem. If the VMSIZE is increased the
machine will run longer before the error condition occurs.
Looking at a VMDUMP shows that the machine has many LE storage
management chains. Problem appears to have become apparent in
z/VM RouteD R430.
LOCAL FIX:
PROBLEM SUMMARY:
****************************************************************
* USERS AFFECTED: All users of z/VM TCP/IP level 420 *
* and 430 running with ROUTED *
****************************************************************
* PROBLEM DESCRIPTION: After running for an extended period *
* of time, ROUTED runs out of storage, *
* with message DTCRTD4844S, and *
* terminates, whereupon the stack will *
* restart it. *
****************************************************************
* RECOMMENDATION: APPLY PTF *
****************************************************************
Function ifinit() allocates a buffer to hold the interface
information it obtains from the TCP/IP stack every 30 seconds.
However, this buffer is never freed, so eventually all storage
is exhausted, the error message is generated, and the ROUTED
server is terminated and TCP/IP stack restarted it.
PROBLEM CONCLUSION:
Code has been added to release the interface buffer after it
has been processed.
TEMPORARY FIX:
COMMENTS:
MODULES/MACROS: ROUTED RTSTART
SRLS: NONE
RTN CODES:
CIRCUMVENTION:
MESSAGE TO SUBMITTER:
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