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

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You can track all active APARs for this component.

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 number

    IT14191

  • Reported component name

    TSM SERVER

  • Reported component ID

    5698ISMSV

  • Reported release

    71A

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2016-03-15

  • Closed date

    2016-03-23

  • Last modified date

    2016-03-23

  • 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



Document information

More support for: Tivoli Storage Manager

Software version: 7.1.3

Reference #: IT14191

Modified date: 23 March 2016