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PI80330: WEBSPHERE EDGE LOAD BALANCER FOR IPV4 & IPV6, CRASH IN M_COPYDATA ON AIX

Fixes are available

9.0.0.5: WebSphere Application Server traditional V9.0 Fix Pack 5
8.0.0.14: WebSphere Application Server V8.0 Fix Pack 14
9.0.0.6: WebSphere Application Server traditional V9.0 Fix Pack 6
8.5.5.13: WebSphere Application Server V8.5.5 Fix Pack 13
9.0.0.7: WebSphere Application Server traditional V9.0 Fix Pack 7
8.0.0.15: WebSphere Application Server V8.0 Fix Pack 15
9.0.0.8: WebSphere Application Server traditional V9.0 Fix Pack 8
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
9.0.0.9: WebSphere Application Server traditional V9.0 Fix Pack 9
9.0.0.10: WebSphere Application Server traditional V9.0 Fix Pack 10
8.5.5.15: WebSphere Application Server V8.5.5 Fix Pack 15
9.0.0.11: WebSphere Application Server traditional V9.0 Fix Pack 11
9.0.5.0: WebSphere Application Server traditional Version 9.0.5 Refresh Pack
9.0.5.1: WebSphere Application Server traditional Version 9.0.5 Fix Pack 1
9.0.5.2: WebSphere Application Server traditional Version 9.0.5 Fix Pack 2
8.5.5.17: WebSphere Application Server V8.5.5 Fix Pack 17
9.0.5.3: WebSphere Application Server traditional Version 9.0.5 Fix Pack 3
9.0.5.4: WebSphere Application Server traditional Version 9.0.5 Fix Pack 4
9.0.5.5: WebSphere Application Server traditional Version 9.0.5 Fix Pack 5
WebSphere Application Server traditional 9.0.5.6
9.0.5.7: WebSphere Application Server traditional Version 9.0.5 Fix Pack 7
9.0.5.8: WebSphere Application Server traditional Version 9.0.5.8
8.5.5.20: WebSphere Application Server V8.5.5.20
8.5.5.18: WebSphere Application Server V8.5.5 Fix Pack 18
8.5.5.19: WebSphere Application Server V8.5.5 Fix Pack 19
9.0.5.9: WebSphere Application Server traditional Version 9.0.5.9
9.0.5.10: WebSphere Application Server traditional Version 9.0.5.10
8.5.5.16: WebSphere Application Server V8.5.5 Fix Pack 16
8.5.5.21: WebSphere Application Server V8.5.5.21
9.0.5.11: WebSphere Application Server traditional Version 9.0.5.11

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • WebSphere Edge Load Balancer for IPv4 & IPv6, crash in
    m_copydata on AIX
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  IBM WebSphere Application Server Load       *
    *                  Balancer for IPv4 and IPv6 on AIX           *
    ****************************************************************
    * PROBLEM DESCRIPTION: A system crash can occur in             *
    *                      m_copydata with a stack showing         *
    *                      os_xmitraw and lbip_pbuf_entry.         *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    This crash has been observed when using servers defined with
    encapsulated MAC forwarding on AIX.
    

Problem conclusion

  • The Load Balancer for IPv4 and IPv6 set the data length of the
    mbuf incorrectly which caused the crash when the OS attempted
    to transmit the data.
    
    Affects the Load Balancer for IPv4 and IPv6 on AIX only.
    Fix to be included in 7.0.0.44, 8.0.0.14, 8.5.5.13 and 9.0.0.5.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PI80330

  • Reported component name

    WS EDGE LB IPV4

  • Reported component ID

    5724H8812

  • Reported release

    900

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2017-04-23

  • Closed date

    2017-05-23

  • Last modified date

    2017-05-30

  • 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

    WS EDGE LB IPV4

  • Fixed component ID

    5724H8812

Applicable component levels

  • R800 PSY

       UP

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"900","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
03 May 2022