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IT18080: CLIENT CRASH DURING BACKUP WITH ACCESS VIOLATION EXCEPTION C0000005 IF DEDUPLICATION ENABLED.

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • A rare race condition can cause a client crash when an invalid
    chunk reference error is received from the server and resets a
    local chunk list while another thread is working inside that
    list.
    
    Tivoli Storage Manager Versions Affected:
    All versions and platforms that support the deduplication
    feature / functionality.
    
    Customer/L2 Diagnostics (If Applicable)
    DSMCRASH.LOG:
    dsmc.exe caused exception C0000005
             (EXCEPTION_ACCESS_VIOLATION)
    
    CALLSTACK:
    dsmc!Dedup::FindEntry+0x135
    dsmc!Dedup::SearchFor+0x138
    dsmc!Dedup::createChunks+0x6a4
    dsmc!DedupMT::dedupThread+0x1e3
    dsmc!callDedupThread+0x12
    msvcr110!beginthreadex+0x107
    msvcr110!endthreadex+0x192
    kernel32!BaseThreadInitThunk+0xd
    
    Initial Impact: Low
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * IBM Spectrum Protect client versions 6.3, 6.4, 7.1 and       *
    * 8.1.0 running on all platforms.                              *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See ERROR DESCRIPTION                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * This issue is projected to be fixed in the IBM Spectrum      *
    * Protect client version 7.1.8 and 8.1.2 on all platforms.     *
    ****************************************************************
    

Problem conclusion

  • Enhanced handling of Invalid chunk reference condition.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT18080

  • Reported component name

    TSM CLIENT

  • Reported component ID

    5698ISMCL

  • Reported release

    71W

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2016-12-06

  • Closed date

    2017-01-27

  • Last modified date

    2017-06-13

  • 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 CLIENT

  • Fixed component ID

    5698ISMCL

Applicable component levels

  • R81W PSY

       UP

  • R81L PSY

       UP

  • R81S PSY

       UP

  • R81A PSY

       UP

  • R81M PSY

       UP

  • R81H PSY

       UP



Document information

More support for: Tivoli Storage Manager

Software version: 71W

Reference #: IT18080

Modified date: 13 June 2017