APAR status
Closed as program error.
Error description
Deadlock seen in Session Initiation Protocol (SIP) Container code in WebSphere Application Server Feature Pack for Communications Enabled Applications (CEA). 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 IBM WebSphere Application Server Feature* * Pack for Communications Enabled Applications* * (CEA) users * **************************************************************** * 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 1.0.0.11. 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
PM33487
Reported component name
CEA FEATUREPACK
Reported component ID
5724J0855
Reported release
700
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2011-02-24
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:
Fix information
Fixed component name
CEA FEATUREPACK
Fixed component ID
5724J0855
Applicable component levels
R700 PSY
UP
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Document Information
Modified date:
09 February 2022