IT14191: SERVER MAY CRASH IN MALLOC DURING REPLICATE NODE WITH REPLMODE SET TO SYNCSEND

7.1.6.000-TIV-TSMSRV-Linuxs390x
7.1.6.000-TIV-TSMSRV-Linuxppc64
7.1.6.000-TIV-TSMSRV-WIN
7.1.6.000-TIV-TSMSRV-SolarisSPARC
7.1.6.000-TIV-TSMSRV-Linuxx86_64
7.1.6.000-TIV-TSMSRV-HP-UX
7.1.6.000-TIV-TSMSRV-AIX
IBM Spectrum Protect Server V7.1 Fix Pack 6 (7.1.6.000) Downloads

APAR status

• Closed as program error.

Error description

• If a REPLICATE NODE is  issued for a node where number of
  objects eligible for replication is very large, in this case
  81.721.495 objects, and REPLMODE is set to SYNCSEND, server may
  crash during memory allocation attempt.
  
  The stack text  will appear similar to following:
  
  malloc_y.leftmost(??, ??) at 0x900000000040d28
  malloc_y.malloc_y(0x6a0, 0x0, 0x9001000a007f878, 0x5f0, 0x0,
  0x11360063, 0x11360063, 0x8b23) at 0x9000000000437d0
  malloc_common.malloc_common@AF104_87(??) at 0x90000000002baac
  pkmemory.pkAllocTracked(??, ??, ??, ??) at 0x100003c90
  tbrsql.TbAddStmtToTxn(??, ??, ??, ??) at 0x1001aee3c
  tbrsql.tbRegisteredOpen(??, ??, ??) at 0x1001ae7d8
  tbrsql.tbGetStmtAndRows@AF33_24(??, ??, ??, ??, ??, ??) at
  0x1001b4e2c
  sdrepair.SdRepairReconOrderThread(??) at 0x100ba9150
  pkthread.StartThread(0x0) at 0x10000d670
  
  As part of the process of synchronizing the two servers, the
  source server builds a list of all of the files that are in
  common between the two servers, and if the list size is in
  magnitude of 81 millions or more, it is likely that the node
  replication attempt will result in buffer overflow, and server
  crash.
  
  TSM Versions Affected:
  Tivoli Storage Manager server 6.3.x and 7.1.x on all platforms.
  
  Initial Impact:
  Medium
  
  Additional Keywords:
  TSM; server; crash; malloc; malloc_y.leftmost; REPLICATE NODE;
  Spectrum Protect
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * All Tivoli Storage Manager server users.                     *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * See error description.                                       *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Apply fixing level when available. This problem is currently *
  * projected to be fixed in level 7.1.6. Note that this is      *
  * subject to change at the discretion of IBM.                  *
  ****************************************************************
  

Problem conclusion

• This problem was fixed.
  Affected platforms:  AIX, HP-UX, Solaris, Linux, and Windows.
  

Temporary fix

Comments

APAR Information

• 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

  TSM SERVER

• Fixed component ID

  5698ISMSV

Applicable component levels

• R71A PSY

     UP

• R71H PSY

     UP

• R71L PSY

     UP

• R71S PSY

     UP

• R71W PSY

     UP