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IV66133: SIMULTANEOUS CALLS ON RRHBA_HW_UNINITIALIZE CRASH SYSTEM APPLIES TO AIX 7100-03

A fix is available

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APAR status

  • Closed as program error.

Error description

  • The system could crash when librrhba and entstat call
    rrhba_hw_uninitialize at the same time on an unconfigured
    ct3 network adapter which also is in error state.
    
    The crash stack looks like;
    
    [00009324].unlock_enable_mem+000018 ()
    [041D3600]mi1_ext_write+000120 (??, ??, ??, ??, ??)
    [041DD7B8]ael1002_power_down+000038 (??, ??)
    [041D731C]t3_prep_adapter+0004FC (??, ??, ??)
    [041CAD28]rrhba_uninit_adapter+000108 (??)
    [041CBB6C]rrhba_hw_uninitialize+00010C (??, ??)
    [041FEDC0]rrhba_qset_stop+0001C0 (??, ??, ??)
    [04348BB8]librrhba_qset_stop+000198 (??, ??, ??)
    [04348310]librrhba_stop+000230 (??, ??)
    [0435BB44]rrent_close+000464 (??)
    [00480408]ns_free+000088 (??)
    [00480698]ndd_usrreq+0001B8 (??, ??, ??, ??, ??)
    [004DC96C]soclose2+00028C (??, ??)
    [004DE550]soclose+000010 (??)
    [004E8C34]soo_close+000294 (??)
    [00647E5C]closef+00005C (??)
    [0055D530]closefd+000150 (??, ??)
    [0055D8E4]closex+000304 (??, ??)
    [0055DB5C]close+00011C (??)
    [00003850]ovlya_addr_sc_flih_main+000130 ()
    

Local fix

  • Remove unconfigured ct3 network adapter
    

Problem summary

  • System crash with similar stack:
     00009324 .unlock_enable_mem+000018 ()
     041D3600 mi1_ext_write+000120 (??, ??, ??, ??, ??)
     041DD7B8 ael1002_power_down+000038 (??, ??)
     041D731C t3_prep_adapter+0004FC (??, ??, ??)
     041CAD28 rrhba_uninit_adapter+000108 (??)
     041CBB6C rrhba_hw_uninitialize+00010C (??, ??)
     041FEDC0 rrhba_qset_stop+0001C0 (??, ??, ??)
     04348BB8 librrhba_qset_stop+000198 (??, ??, ??)
     04348310 librrhba_stop+000230 (??, ??)
     0435BB44 rrent_close+000464 (??)
     00480408 ns_free+000088 (??)
     00480698 ndd_usrreq+0001B8 (??, ??, ??, ??, ??)
     004DC96C soclose2+00028C (??, ??)
     004DE550 soclose+000010 (??)
     004E8C34 soo_close+000294 (??)
     00647E5C closef+00005C (??)
     0055D530 closefd+000150 (??, ??)
     0055D8E4 closex+000304 (??, ??)
     0055DB5C close+00011C (??)
     00003850 ovlya_addr_sc_flih_main+000130 ()
    

Problem conclusion

  • Driver code is modified to fix synchronize between close
    function and error notify thread.
    

Temporary fix

Comments

  • 6100-08 - use AIX APAR IV62764
    6100-09 - use AIX APAR IV66115
    7100-02 - use AIX APAR IV69648
    7100-03 - use AIX APAR IV66133
    

APAR Information

  • APAR number

    IV66133

  • Reported component name

    AIX V7.1

  • Reported component ID

    5765H4000

  • Reported release

    710

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Submitted date

    2014-10-20

  • Closed date

    2014-10-20

  • Last modified date

    2015-09-30

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

    IV62764

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

Fix information

  • Fixed component name

    AIX V7.1

  • Fixed component ID

    5765H4000

Applicable component levels

  • R710 PSY U865736

       UP15/05/19 I 1000

PTF to Fileset Mapping



Document information

More support for: AIX Enterprise Edition

Software version: 710

Operating system(s): AIX

Reference #: IV66133

Modified date: 30 September 2015