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PM31742: DEADLOCK IN SIP CONTAINER CODE.

Fixes are available

7.0.0.19: WebSphere Application Server V7.0 Fix Pack 19
7.0.0.21: WebSphere Application Server V7.0 Fix Pack 21
7.0.0.23: WebSphere Application Server V7.0 Fix Pack 23
7.0.0.25: WebSphere Application Server V7.0 Fix Pack 25
7.0.0.27: WebSphere Application Server V7.0 Fix Pack 27
7.0.0.29: WebSphere Application Server V7.0 Fix Pack 29
7.0.0.31: WebSphere Application Server V7.0 Fix Pack 31
7.0.0.27: Java SDK 1.6 SR13 FP2 Cumulative Fix for WebSphere Application Server
7.0.0.33: WebSphere Application Server V7.0 Fix Pack 33
7.0.0.35: WebSphere Application Server V7.0 Fix Pack 35
7.0.0.37: WebSphere Application Server V7.0 Fix Pack 37
7.0.0.39: WebSphere Application Server V7.0 Fix Pack 39
7.0.0.41: WebSphere Application Server V7.0 Fix Pack 41
7.0.0.43: WebSphere Application Server V7.0 Fix Pack 43
7.0.0.45: WebSphere Application Server V7.0 Fix Pack 45
PM31742; 7.0.0.17: deadlock in sip container code
7.0.0.19: Java SDK 1.6 SR9 FP2 Cumulative Fix for WebSphere Application Server
7.0.0.21: Java SDK 1.6 SR9 FP2 Cumulative Fix for WebSphere
7.0.0.23: Java SDK 1.6 SR10 FP1 Cumulative Fix for WebSphere
7.0.0.25: Java SDK 1.6 SR11 Cumulative Fix for WebSphere Application Server
7.0.0.27: Java SDK 1.6 SR12 Cumulative Fix for WebSphere Application Server
7.0.0.29: Java SDK 1.6 SR13 FP2 Cumulative Fix for WebSphere Application Server
7.0.0.45: Java SDK 1.6 SR16 FP60 Cumulative Fix for WebSphere Application Server
7.0.0.31: Java SDK 1.6 SR15 Cumulative Fix for WebSphere Application Server
7.0.0.35: Java SDK 1.6 SR16 FP1 Cumulative Fix for WebSphere Application Server
7.0.0.37: Java SDK 1.6 SR16 FP3 Cumulative Fix for WebSphere Application Server
7.0.0.39: Java SDK 1.6 SR16 FP7 Cumulative Fix for WebSphere Application Server
7.0.0.41: Java SDK 1.6 SR16 FP20 Cumulative Fix for WebSphere Application Server
7.0.0.43: Java SDK 1.6 SR16 FP41 Cumulative Fix for WebSphere Application Server

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • Deadlock seen in Session Initiation Protocol (SIP) Container
    code in WebSphere Application Server 7.0.0.13.
    
    Ex:"Telephony Command Dispatcher 0" J9VMThread:0x47ECC300,
    j9thread_t:0x4AAF0838, java/lang/Thread:0x02BB1490, state:B,
    prio=5 (native thread ID:0x213C, native priority:0x5,native
    policy:UNKNOWN)
    
    
    Java callstack:at
    com/ibm/ws/sip/container/tu/TransactionUserWrapper.getApplicatio
    nSession(TransactionUserWrapper.java:977(Compiled Code))
    at
    com/ibm/ws/sip/container/servlets/SipSessionImplementation.getAp
    plicationSession(SipSessionImplementation.java:288(Compiled
    Code))
    at
    com/ibm/ws/sip/container/servlets/DRSSipSessionImpl.shouldBeRepl
    icated(DRSSipSessionImpl.java:201(Compiled Code))
    at
    com/ibm/ws/sip/container/failover/FailoverMgrImpl.replicate(Fail
    overMgrImpl.java:461(Compiled Code))
    

Local fix

  • N/A
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  All users of IBM WebSphere Application      *
    *                  Server V7.0                                 *
    ****************************************************************
    * PROBLEM DESCRIPTION: Deadlock seen in Session Initiation     *
    *                      Protocol (SIP) Container code           *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    When invalidating a SIP application session from a none SIP
    thread, locking of two Objects in a reverse order can cause a
    dead lock situation.
    

Problem conclusion

  • The SIP container is locking the same object even when the SIP
    application session access is done from a none SIP thread,
    this approach prevents the SIP container code from locking two
    objects in the reverse order
    
    The fix for this APAR is currently targeted for inclusion in
    fix pack 7.0.0.19.  Please refer to the Recommended Updates
    page for delivery information:
    http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
    

Temporary fix

Comments

APAR Information

  • APAR number

    PM31742

  • Reported component name

    WEBS APP SERV N

  • Reported component ID

    5724H8800

  • Reported release

    700

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2011-02-02

  • Closed date

    2011-03-01

  • Last modified date

    2011-03-01

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

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

    PM33487

Fix information

  • Fixed component name

    WEBS APP SERV N

  • Fixed component ID

    5724H8800

Applicable component levels

  • R700 PSY

       UP



Document information

More support for: WebSphere Application Server
General

Software version: 7.0

Reference #: PM31742

Modified date: 01 March 2011