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IC76254: A LOAD FROM "/DEV/NULL/" WITH A TRAILING "/", INCORRECT DEVICE NAME, CAUSES DB2 TO CRASH ON AIX SYSTEM.

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APAR status

  • Closed as program error.

Error description

  • Load from "/dev/null/" crashes the instance.  If the trailing
    "/" is removed then it works just fine. The trailing "/"
    is incorrect and should not be put in the first place.
    .
    simple repro on AIX:
    .
    
    db2sampl
    db2 "load from /dev/null/ of del insert into department"
    .
    SQL2535W  Warning!  End of media on device "/dev/null/" has been
    reached.
    Please mount the next source media.
    Do you want to continue(c), terminate this device only(d), abort
    the utility(t)
    ? (c/d/t)
    When you enter "d" to abort the utilility you get SQL1224N and
    instance crashes..
    .
    you get the db2bm, the agent, and fm processes all crash with
    memory corruption, sig 11 with following stack:
    .
    -------Frame------ ------Function + Offset------
    0x090000001E7665C0 sqloCrashOnCriticalMemoryValidationFailure +
    0x1C
    0x090000001E768FD4
    sqloCrashOnCriticalMemoryValidationFailure@glue1F0 + 0x1C
    0x090000001F0C167C sqlofmblkEx + 0xA0
    0x090000001EE10928 sqleAgentUCCleanup__FP15sql_static_data +
    0x80
    0x0900000020314B34 sqluTermLoadEDU__FPP20sqle_agent_privatecb +
    0x1B4
    0x090000002061802C
    @72@sqlulBMTerm__FPP14SQLU_BUFMAN_CBibP20sqle_agent_privatecb
    T2 + 0x3A4
    

Local fix

  • do not put the erroneaus trailing "/" for /dev/null device.
    

Problem summary

  • Load from "/dev/null/" crashes the instance.  If the trailing
    "/" is removed then it works just fine. The trailing "/"
    is incorrect and should not be put in the first place.
    .
    simple repro on AIX:
    .
    db2sampl
    db2 "load from /dev/null/ of del insert into department"
    .
    SQL2535W  Warning!  End of media on device "/dev/null/" has been
    reached.
    Please mount the next source media.
    Do you want to continue(c), terminate this device only(d), abort
    the utility(t)
    ? (c/d/t)
    When you enter "d" to abort the utilility you get SQL1224N and
    instance crashes..
    .
    you get the db2bm, the agent, and fm processes all crash with
    memory corruption, sig 11 with following stack:
    .
    -------Frame------ ------Function + Offset------
    0x090000001E7665C0 sqloCrashOnCriticalMemoryValidationFailure +
    0x1C
    0x090000001E768FD4
    sqloCrashOnCriticalMemoryValidationFailure@glue1F0 + 0x1C
    0x090000001F0C167C sqlofmblkEx + 0xA0
    0x090000001EE10928 sqleAgentUCCleanup__FP15sql_static_data +
    0x80
    0x0900000020314B34 sqluTermLoadEDU__FPP20sqle_agent_privatecb +
    0x1B4
    0x090000002061802C
    @72@sqlulBMTerm__FPP14SQLU_BUFMAN_CBibP20sqle_agent_privatecb
    T2 + 0x3A4
    

Problem conclusion

  • apar ic76254
    module engn_squ
    fixed >= v97 fpk6
    

Temporary fix

  • do not put the erroneaus trailing "/" for /dev/null device.
    

Comments

APAR Information

  • APAR number

    IC76254

  • Reported component name

    DB2 FOR LUW

  • Reported component ID

    DB2FORLUW

  • Reported release

    970

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2011-05-09

  • Closed date

    2011-12-08

  • Last modified date

    2012-01-25

  • APAR is sysrouted FROM one or more of the following:

    IC76252

  • APAR is sysrouted TO one or more of the following:

Modules/Macros

  • ENGN_SQU
    

Fix information

  • Fixed component name

    DB2 FOR LUW

  • Fixed component ID

    DB2FORLUW

Applicable component levels

  • R970 PSN

       UP

[{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSEPGG","label":"DB2 for Linux, UNIX and Windows"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"9.7","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}}]

Document Information

Modified date:
25 January 2012