APAR status
Closed as canceled.
Error description
!!!! NO LONGER MAINTAINED !!!! This info apar replaces II11180 and II12485. It contains TCP maintenance for CSM problems on TCP releases through z/OS 1.2 (TCP R120). See info apar II13951 for later releases. TCP. Please see info apars II12657 and II13442 for VTAM CSM maintenance. ************************************************************** * PARMLIB MEMBER IVTPRM00 should initially be coded at * * 100M MAX ECSA and 100M MAX FIXED. Monitor system for one * * week with DISPLAY CSM command to determine peak usage. * * Adjust IVTPRM00 MAX ECSA and MAX FIXED values to 1.5 times * * the highest value indicated in DISPLAY CSM output. * * NOTE: When coding IVTPRM00, FIXED MAX and ECSA MAX values * * must start in column one and only one space is * * allowed between fields. * * NOTE: If CSM MAX ECSA is coded higher than 90% of the * * S/390 allowable ECSA (IEASYS00 ECSA), then * * CSM MAX ECSA will be adjusted to 90% of S/390 ECSA. * ***************ADDITIONAL NOTES******************************* * NOTE 1: You must adjust your IEASYSxx CSA parm to include * * the additional amounts of ECSA that CSM will be using. * ************************************************************** * Note 2: A shortage of CSM FIXED storage may result in * * ENOBUFS errors on a variety of TCP/IP Socket calls. The * * system programmer should consider increasing CSM MAX FIXED* * if EBOBUFS errors are reported by Sockets Applications * * running on the z/OS or OS/390 image. * ************************************************************** * NOTE 3: To dynamically change the ECSA and FIXED CSM values* * use the following command: * * MODIFY net,CSM,ECSA=value,FIXED=value * * where value can be in K or M ranging from 1024K to 2048M * ************************************************************** ************************************************************** If the maintenance listed in this apar does not resolve the problem, the following documentation needs to be obtained: 1) D net,CSM,OWNERID=ALL to determine how much storage is being used and by what job / ASID. D net,CSM to identify the CSM dataspace being used. 2) MODIFY net,TRACE,TYPE=VTAM, OPTION=(CSM,CIO,SMS,PSS,PIU,MSG,SSCP,API,NRM,XBUF,APPC) (If OS390R7 or higher, add CIA to the above VIT options.) NOTE: Do the following if using 8K VIT buffering: -Specify BFRNUM to 10. -Apply OW32783 to resolve a problem where CSM VIT entries were written seperately from 8K buffers. -Ensure you only specify FE1,FEF,FF1 GTF options. -Ensure large enough BLOCKSIZE is specified for GTF (IEFRDER DD BLKSIZE defined to at least 8K-details in OW26052). If running OS390V2R5 or higher you can run the VIT to dataspace rather than externally to GTF: MODIFY net,TRACE,TYPE=VTAM, OPTION=(CSM,CIO,SMS,PSS,PIU,MSG,SSCP,API,NRM,XBUF,APPC), DSPSIZE=5,SIZE=999 (If OS390R7 or higher, add CIA to above options.) APAR OW36936 addresses a problem with the formatting of the dataspace VIT. 3) If the DISPLAY CSM output indicates TCP/IP owns the storage: a) Update CTIEZB00 member in parmlib to specify BUFSIZE(16M). This will provide a 16M CTRACE buffer. TCP/IP must be recycled after this change. b) Bring up TCP/IP and issue: - TRACE CT,ON,COMP=SYSTCPIP,SUB=(TCPIP) - R xx,options=(STORAGE,VTAM,VTAMDATA,MESSAGE,INTERNET,TCP), END 4) Dump VTAM and TCP/IP DUMP COMM=(csm storage growth) R xx,JOBNAME=(net,tcpip),SDATA=(SQA,LSQA,CSA,RGN,TRT,NUC),CONT R xx,DSPNAME=('net'.ISTITDS1,'tcpip'.*),END 5) If the DISPLAY CSM output indicates the CSM storage growth is in one of the CSM dataspace pools, dump the CSM dataspace(s) in the above dump of VTAM and TCP. To dump CSM dataspace, use the DSPNAME parameter on the dump command. For releases prior to z/OS 1.2, it should be DSPNAME=(1.*CSM), for z/OS 1.2 or later, it should be DSPNAME=(1.CSM*). To dump the CSM dataspaces and the other dataspaces listed in step 4 the DSPNAME parameter for z/OS 1.2 and later would be: DSPNAME=('net'.ISTITDS1,'tcpipprocname'.*,1.CSM*) ******************************************************** FYI - TCP/IP will cache unused SKMB / SKDB (Message Triples) and associated CSM storage for 4 minutes. After 4 minutes, if the storage has not referenced, the storage will be freed. ******************************************************** ADDITIONAL NOTE: Please read INFO APAR II12320 for additional important information regarding a storage shortage when TCP devices have invalid MVS MIH values. *************************************************************** * TCP/IP 3.3 R329 * *************************************************************** PQ31339 UQ36954 9911 ABEND0C4 EZBIFINB EZBITSCS CSMQ OVERLAYED *************************************************************** * TCP/IP 3.4 R340 * *************************************************************** PQ22259 UQ26152 9902 LOOP EZBIFOUT 4K ECSA CSM PQ22793 UQ27553 9903 SNALINK LOOP EZBSLIUT CSM 4K ECSA GROWTH PQ23704 UQ27026 9906 ABEND071 SPINLOOP CSM D/S WRITEV OVERLAY PQ27474 UQ30946 9906 ABEND878 SP231 KEY6 SKMB PASCAL API SMTP PQ27868 UQ32836 9907 ABEND32E EZBITTUB TIMER TASK MAX # STIMER PQ29644 UQ34014 9909 SPIN LOOP IN EZBIFIF1 OR EZBITSCU PQ30121 UQ35398 9910 ABEND0C4 EZBIFINB EZBITSCS CSM Q OVERLAID PQ30997 UQ38338 9912 ABEND0C4 EZBPTTRC FILTERING PACKET TRACE PQ31074 UQ35774 9911 MULTIPLE SNALINK DEVICES CSM 4K ECSA PQ31983 UQ38543 9912 TCPIP STACK HANG WHEN RUNNING SNALINK PQ35993 UQ41781 0003 SAMEHOST(IUTSAMEH) CONN TO REMOT PQ39718 UQ48358 0012 CSM ECSA 4K GROWING (SP231 KEY6) *************************************************************** * TCP/IP 3.5 R350 OS390R6 * *************************************************************** PQ22259 UQ26153 9902 LOOP EZBIFOUT CSM ECSA GROWTH LCS PQ22793 UQ27554 9903 SNALINK LOOP EZBSLIUT CSM ECSA GROWTH PQ23425 UQ26482 9902 ABEND0C4 EZBIPOUT BECAUSE MESSAGE@ ZERO PQ23704 UQ27027 9903 ABEND071 SPINLOOP CSM D/S WRITEV OVERLAY PQ25344 UQ29780 9905 CUMULATIVE CSM RELATED FIXES PQ27868 UQ32837 9907 ABEND32E RC011C EZBITTUB TIMER PQ28805 UQ35739 9910 IUTSAMEH CONNECTION USING FTP PQ30121 UQ35399 9910 ABEND0C4 IN MODULE EZBIFINB PQ30504 UQ35405 9910 IPMAIN LOCK SHOULD BE HELD SHARED PQ30997 UQ38339 9912 ABEND0C4-10 MAY OCCUR AT EZBPTTRC PQ31074 UQ35775 9911 MULTIPLE SNALINK DEVICES CSM 4K PQ31983 UQ38544 9912 TCPIP STACK HANG WHEN RUNNING SNALINK PQ33304 UQ38613 9912 ABEND0C4 IN EZAFTPRJ PQ35993 UQ41782 0003 SAMEHOST(IUTSAMEH) PQ38655 UQ45186 0008 CSM ECSA OVERLAY VARIOUS ABENDS PQ39718 UQ48364 0012 CSM ECSA 4K GROWING (SP231 KEY6) PQ42452 UQ48765 0012 EXCESSIVE CSM ECSA STORAGE USAGE PQ43990 UQ49451 STORAGE GROWTH DUE TO LEAKING RESET *************************************************************** * TCP/IP 3.7 R370 OS390R7 * *************************************************************** PQ22742 UQ25575 9901 CUMULATIVE DEVELOPMENT FIXES PQ22793 UQ27555 9903 SNALINK LOOP EZBSLIUT CSM 4K ECSA GROWTH PQ23118 UQ25826 9901 CUMULATIVE DEVELOPMENT FIXES PQ23303 UQ26194 9902 DEVELOPMENT APAR PQ23662 UQ26574 9902 DEVELOPMENT APAR PQ24479 UQ27643 9903 DEVELOPMENT APAR PQ24636 UQ27633 9903 DEVELOPMENT APAR PQ26046 UQ30647 9906 MESSAGE TRIPLES NOT FREED EZZ4310I ERRORS PQ26418 UQ30059 9906 32K CSM ECSA QDIO - CSM OVERLAY PQ27868 UQ32838 9907 ABEND32E EZBITTUB MAXIMUM # STIMERM PQ28805 UQ35738 9910 IUTSAMEH CONNECTION OUTSIDE NETWORK FTP PQ29552 UQ33779 9908 MISCELLANEOUS IPSEC FIXES PQ30121 UQ35400 9910 ABEND0C4 EZBIFINB EZBITSCS CSM Q OVERLAYED PQ30997 UQ38340 9912 ABEND0C4 EZBPTTRC FILTERING PACKET TRACE PQ31074 UQ35776 9911 MULTIPLE SNALINK DEVICES CSM 4K ECSA PQ31983 UQ38545 9912 TCPIP SNALINK HANG LINKS READ ACTIVE PQ33304 UQ38614 9912 ABEND0C4 IN EZAFTPRJ PQ35993 UQ41783 0005 SAMEHOST(IUTSAMEH) PQ37273 UQ42793 0005 ABEND 4C5 RETURN 74BE2500 STORAGE PQ38655 UQ45187 0008 CSM ECSA OVERLAY VARIOUS ABENDS PQ39718 UQ48373 0012 CSM ECSA 4K GROWING (SP231 KEY6) PQ40428 UQ46562 0010 ABEND0C4 RECEIVED IN EZASNALK PQ42452 UQ48766 0012 EXCESSIVE CSM ECSA STORAGE USAGE PQ43990 UQ49452 STORAGE GROWTH DUE TO LEAKING RESET *************************************************************** * TCP/IP 3.8 R380 OS390R8 * *************************************************************** PQ27868 UQ32839 9907 ABEND32E EZBITTUB MAXIMUM # STIMERM PQ27937 UQ31639 9906 DEVELOPMENT APAR PQ28805 UQ35737 9910 IUTSAMEH CONNECTION OUTSIDE NETWORK FTP PQ29552 UQ33783 9908 MISCELLANEOUS IPSEC FIXES PQ30121 UQ35401 9910 ABEND0C4 EZBIFINB EZBITSCS CSM Q OVERLAID PQ30504 UQ35407 9910 IPMAIN LOCK SHOULD BE HELD SHARE PQ30997 UQ38341 9912 ABEND0C4 EZBPTTRC FILTERING PACKET TRACE PQ31074 UQ35777 9911 MULTIPLE SNALINK DEVICES CSM 4K ECSA PQ31983 UQ38546 9912 TCPIP SNALINK HANG LINKS READ ACTIVE PQ32155 UQ38677 0001 DEVELOPMENT APAR PQ33304 UQ38615 9912 ABEND0C4 IN EZAFTPRJ PQ35465 UQ40911 0011 ETHERNET ARP REQUEST NOT SENT ETHEROR802.3 PQ34632 UQ41477 0003 IP REASSEMBLY ERROR PQ35993 UQ41784 0003 SAMEHOST(IUTSAMEH) PQ37273 UQ42794 0005 ABEND 4C5 RETURN 74BE2500 STORAGE PQ38655 UQ45188 0008 CSM ECSA OVERLAY VARIOUS ABENDS PQ39718 UQ48380 0012 CSM ECSA 4K GROWING (SP231 KEY6) PQ40428 UQ46563 0010 ABEND0C4 RECEIVED IN EZASNALK PQ42452 UQ48767 0012 EXCESSIVE CSM ECSA STORAGE USAGE PQ43990 UQ49592 0101 STORAGE GROWTH DUE TO LEAKING RESET PQ44008 UQ49900 0101 CSM 4K DATASPACE GROWTH WITH SKMB & SKDB PQ54213 UQ60602 0112 OVERLAY IN 180K CSM BUFFERS - 0C4 ABENDS PQ60159 UQ66017 0205 CSM CRITICAL CAUSES TCPIP HANG PQ60706 UQ67461 0207 CSM 4K DATASPACE GROWTH PQ61947 UQ67764 0208 CSM 4K GROWTH WHEN USING CLAW PACKING PQ64240 UQ69361 0209 CSM 4K ECSA LEAK WITH OUT OF ORDER SEGMENTS *************************************************************** * TCP/IP Version 5 Release 10 R50A * *************************************************************** PQ38077 UQ43761 0007 ABEND 4C5 RETURN 74BE2500 STORAG PQ38382 UQ43800 0005 FIREWALL CSM LEAK 4K DSPACE PQ38655 UQ45189 0008 CSM ECSA OVERLAY VARIOUS ABENDS PQ39550 UQ45079 0007 DEVELOPMENT APAR PQ39718 UQ48382 0012 CSM ECSA 4K GROWING (SP231 KEY6) PQ40428 UQ46564 0010 ABEND0C4 RECEIVED IN EZASNALK PQ42452 UQ48768 0012 EXCESSIVE CSM ECSA STORAGE USAGE PQ44857 UQ50527 0102 CSM CRITICAL CAUSES LOCK CONTENTION PQ45170 UQ50920 0102 ABEND0C4 IN IVTSMCFB INVALID XBFLENT PQ45087 UQ51374 0103 ABEND0C4 IN MODULE EZBIFBP1 PQ47078 UQ53023 0104 CSM STORAGE REQUESTS FAIL PQ48971 UQ55242 0107 0C5 IVTSMCCO PQ52900 UQ58916 0111 CSM 32K BUFFER LEAK WITH IUDI & IUDR PQ54213 UQ60603 0112 OVERLAY IN 180K CSM, 0C4 ABENDS PQ55003 UQ61422 0202 OVERLAY IN 180K CSM BY FTP PQ60159 UQ66018 0205 CSM CRITICAL CAUSES TCPIP HANG PQ60163 UQ66029 0206 CSM 4K ECSA LEAK WITH FRCA PRESEND BUFFERS PQ60983 UQ66690 0206 CSM CRITICAL CAUSES LOCK CONTENTION PQ61319 UQ66702 0206 CSM DATASPACE GROWTH AFTER TCPIP RESTART PQ60706 UQ67462 0207 CSM 4K DATASPACE GROWTH PQ61947 UQ67765 0208 CSM 4K GROWTH WITH CLAW PACKING PQ63439 UQ69040 0208 ECSA & CSM DATASPACE GROWTH PQ64240 UQ69362 0209 CSM 4K ECSA LEAK OF OUT OF ORDER SEGMENTS PQ65699 UQ70113 0210 INEFFICIENT STORAGE USE - IP REASSEMBLY PQ71402 UQ74953 0304 ABEND0A9 DUE TO ZEROED CSM TOKEN PQ72868 UQ76331 0305 CSM GROWTH DUE TO CLOSEWAIT CONNECTIONS PQ76342 UQ79177 0309 ABEND0C4 in EZBITSCS PQ87507 UQ88075 0405 TCPIP HUNG WHEN CSM CONSTRAINED *************************************************************** * TCP/IP z/OS 1.2 R120 * *************************************************************** PQ52265 UQ59191 0111 CSM 4K,16K ECSA LEAK WITH HIPERSOCKET ACCEL PQ54213 UQ60601 0112 OVERLAY 180K CSM BY FTP, ABEND 0C4 PQ53975 UQ60920 0201 CSM 4K DATASPACE LEAK PQ55003 UQ61421 0202 OVERLAY 180K CSM BY FTP PQ58403 UQ64716 0204 CSM CRITICAL CAUSES LOCK CONTENTION PQ60159 UQ66016 0205 CSM CRITICAL CAUSES TCPIP HANG PQ60163 UQ66028 0206 CSM 4K ECSA LEAK - FRCA PRESEND BUFFERS PQ60706 UQ67459 0207 CSM 4K DATASPACE GROWTH PQ61947 UQ67763 0208 CSM 4K GROWTH WITH CLAW PACKING PQ62315 UQ68980 0208 CSM GROWTH WITH IUDRS FOR CLAW PACKING PQ63439 UQ69039 0208 ECSA & CSM DATASPACE GROWTH PQ64240 UQ69359 0209 CSM 4K ECSA LEAK - OUT OF ORDER SEGMENTS PQ65363 UQ69731 0210 CSM DATASPACE GROWTH - MULTICAST SAMEHOST PQ65699 UQ70112 0210 INEFFICIENT STORAGE USE - IP REASSEMBLY PQ68122 UQ71989 0212 CSM HIGH, TCPIP RESTART HANG W/HIGH ECSA PQ70771 UQ74446 0303 CLOSEWAIT W/ZERO WINDOW - DATA NOT FREED PQ71116 UQ74371 0303 CSM 4K ECSA GROWTH WHEN CHECKSUM ERROR PQ71402 UQ74952 0304 ABEND0A9 DUE TO ZEROED CSM TOKEN PQ72228 UQ75660 0304 CSA EXHAUSTION - UNUSED DUCBS NOT FREED PQ73583 UQ76417 0306 ABEND0C4 IN EZBITSCS PQ83748 UQ85489 0403 SNMPIUCV STOPS RECEIVING MESSAGES PQ87507 UQ88071 0405 TCPIP HUNG WHEN CSM CONSTRAINED PQ88146 UQ88340 0406 60K CLAW PACKING BUFFERS & SHORT PACKETS PQ90241 UQ90133 0407 S0C4 ABEND IN EZBAFINB WHEN CSM CRITICAL PQ91666 UQ90965 0408 AB0C4 IN EZBIFOUT WITH CLAW DEVICE DEFINED PQ96542 UQ95617 0510 STORAGE GROWTH IN ECSA SP241 K6 STORAGE WHEN USING FIREWALL VPN TUNNELS TCPINFO BOOKAPAR 5655HAL00 R329 R340 R350 R370 R380 R50A R120 *************************************************************** Additional Information regarding VTAM CSM usage: HPDT and CSM usage: VTAM Network Implementation Guide (SC31-8370-00): VTAM Programming for CSM (SC31-8420-00) VTAM Guide to Programming for LU 6.2. (SC31-8374-00) CSM Guide (SC31-8575-00) NOTE: For z/OS Commserver hints and tips go to: http://www.ibm.com/software/network/commserver/support/ ************************************************************** * End of II12658 data. * ************************************************************** VTAMINFO
Local fix
Problem summary
Problem conclusion
Temporary fix
Comments
closing cancel
APAR Information
APAR number
II12658
Reported component name
V2 LIB INFO ITE
Reported component ID
INFOV2LIB
Reported release
001
Status
CLOSED CAN
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2000-12-08
Closed date
2001-01-19
Last modified date
2008-03-24
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Applicable component levels
[{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG19M","label":"APARs - z\/OS environment"},"Platform":[{"code":"PF054","label":"z Systems"}],"Line of Business":{"code":"","label":""}}]
Document Information
Modified date:
14 December 2020