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IZ60430: SYSTEM CRASHES WHEN DS4K RETURNS INVALID SENSE DATA APPLIES TO AIX 5300-10

A fix is available

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APAR status

  • Closed as program error.

Error description

  • System crashes with the following stack.
    
    [0007ACD0]xmemdma64_list+0005D0 (800000281BE00001,
    F10001002E36B568, F10001002E36DBC4, 000000000000000E,
    0000000000011002, 000000000000E370 [??])
    [03F95B68]d_map_list_tce+000628 (??, ??, ??, ??, ??)
    [04016A0C]efc_mapdma_iocb+0003A0 (??, ??)
    [0401DFAC]efc_start+0004C0 (??)
    [0401E958]efc_output+000360 (??, ??)
    [040D5050]efsc_start+0006B0 (??, ??)
    [040D7F18]efsc_strategy+000B54 (??)
    [000F5AE8]std_devstrat+000270 (??)
    [000F5EA0]devstrat+00004C (??)
    [04123ABC]fcparray_start+0004DC (??)
    [04122B2C]fcparray_iodone+000120 (??)
    

Local fix

Problem summary

  • System crashes with the following stack:
     0007ACD0 xmemdma64_list+0005D0 (800000281BE00001,
    F10001002E36B568, F10001002E36DBC4, 000000000000000E,
    0000000000011002, 000000000000E370  ?? )
     03F95B68 d_map_list_tce+000628 (??, ??, ??, ??, ??)
     04016A0C efc_mapdma_iocb+0003A0 (??, ??)
     0401DFAC efc_start+0004C0 (??)
     0401E958 efc_output+000360 (??, ??)
     040D5050 efsc_start+0006B0 (??, ??)
     040D7F18 efsc_strategy+000B54 (??)
     000F5AE8 std_devstrat+000270 (??)
     000F5EA0 devstrat+00004C (??)
     04123ABC fcparray_start+0004DC (??)
     04122B2C fcparray_iodone+000120 (??)
    

Problem conclusion

  • Added validation of sense_length in fcparray_format_mode_data,
    cd_length,ch_length in fcparray_mode_data_compare, and b_bcount
    in fcparray_mode_select.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IZ60430

  • Reported component name

    AIX 5.3

  • Reported component ID

    5765G0300

  • Reported release

    530

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Submitted date

    2009-09-11

  • Closed date

    2010-02-23

  • Last modified date

    2013-03-29

Fix information

  • Fixed component name

    AIX 5.3

  • Fixed component ID

    5765G0300

Applicable component levels

  • R530 PSY U832876

       UP10/05/18 I 1000

PTF to Fileset Mapping

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Document Information

Modified date:
29 March 2013