PM93319: DEADLOCK BETWEEN J2C LOOKUP AND RA(Resource Adapter) SHUTDOWN THREADS

Fixes are available

APAR status

Closed as program error.

Error description

The javacore may contain a deadlock as per the following
thread stacks.

3XMTHREADINFO      "Non-deferrable Alarm : 3"
J9VMThread:0x0000000084079300, j9thread_t:0x00007FCF9803DCA0,
java/lang/Thread:0x00000000052D0F68, state:B, prio=5
3XMJAVALTHREAD            (java/lang/Thread getId:0x48,
isDaemon:true)
3XMTHREADINFO1            (native thread ID:0x63EC, native
priority:0x5, native policy:UNKNOWN)
3XMTHREADINFO2            (native stack address range
from:0x00007FCFAA06A000, to:0x00007FCFAA0AB000, size:0x41000)
3XMTHREADBLOCK     Blocked on:
java/lang/Object@0x000000007EFC1D00 Owned by: "Default : DMN4"
(J9VMThread:0x000000008590E000,
java/lang/Thread:0x000000007A803D50)
3XMHEAPALLOC             Heap bytes allocated since last GC
cycle=16614280 (0xFD8388)
3XMTHREADINFO3           Java callstack:
4XESTACKTRACE                at
com/ibm/ejs/j2c/ConnectionFactoryDetailsImpl.stop(ConnectionFact
oryDetailsImpl.java:436)
4XESTACKTRACE                at
com/ibm/ejs/j2c/RAWrapperImpl.stopRA(RAWrapperImpl.java:897)
5XESTACKTRACE                   (entered lock:
com/ibm/ejs/j2c/RAWrapperImpl@0x000000007FAE56C8, entry count:
2)
4XESTACKTRACE                at
com/ibm/ejs/j2c/RAWrapperImpl.stopRA(RAWrapperImpl.java:989)
5XESTACKTRACE                   (entered lock:
com/ibm/ejs/j2c/RAWrapperImpl@0x000000007FAE56C8, entry count:
1)
4XESTACKTRACE                at
com/ibm/ejs/j2c/RALifeCycleManagerImpl.shutdown(RALifeCycleManag
erImpl.java:1492)
5XESTACKTRACE                   (entered lock:
java/util/Hashtable@0x0000000004C88988, entry count: 1)
4XESTACKTRACE                at
com/ibm/ejs/j2c/RALifeCycleManagerImpl.stop(RALifeCycleManagerIm
pl.java:532)

3XMTHREADINFO      "Default : DMN4"
J9VMThread:0x000000008590E000, j9thread_t:0x00007FCF9C2EA1B0,
java/lang/Thread:0x000000007A803D50, state:B, prio=5
3XMJAVALTHREAD            (java/lang/Thread getId:0xC5,
isDaemon:true)
3XMTHREADINFO1            (native thread ID:0x64CC, native
priority:0x5, native policy:UNKNOWN)
3XMTHREADINFO2            (native stack address range
from:0x00007FCFA8049000, to:0x00007FCFA808A000, size:0x41000)
3XMTHREADBLOCK     Blocked on:
java/util/Hashtable@0x0000000004C88988 Owned by:
"Non-deferrable Alarm : 3" (J9VMThread:0x0000000084079300,
java/lang/Thread:0x00000000052D0F68)
3XMHEAPALLOC             Heap bytes allocated since last GC
cycle=975144 (0xEE128)
3XMTHREADINFO3           Java callstack:
4XESTACKTRACE                at
com/ibm/ejs/j2c/RALifeCycleManagerImpl.getResourceAdapterInstanc
e(RALifeCycleManagerImpl.java:2351)
4XESTACKTRACE                at
com/ibm/ejs/j2c/ConnectionFactoryBuilderServerImpl.createMCFandP
M(ConnectionFactoryBuilderServerImpl.java:648)
5XESTACKTRACE                   (entered lock:
java/lang/Object@0x000000007EFC1D00, entry count: 1)
4XESTACKTRACE                at
com/ibm/ejs/j2c/ConnectionFactoryBuilderServerImpl.processObject
Instance(ConnectionFactoryBuilderServerImpl.java:1061)
4XESTACKTRACE                at
com/ibm/ejs/j2c/ServerFunction.processObjectInstance(ServerFunct
ion.java:1510)
4XESTACKTRACE                at
com/ibm/ejs/j2c/ConnectionFactoryBuilderImpl.getObjectInstance(C
onnectionFactoryBuilderImpl.java:639)
4XESTACKTRACE                at
org/apache/aries/jndi/ObjectFactoryHelper.getObjectInstanceUsing
ObjectFactoryBuilders(ObjectFactoryHelper.java:349)
4XESTACKTRACE                at
org/apache/aries/jndi/ObjectFactoryHelper.getObjectInstance(Obje
ctFactoryHelper.java:89)
4XESTACKTRACE                at
org/apache/aries/jndi/OSGiObjectFactoryBuilder.getObjectInstance
(OSGiObjectFactoryBuilder.java:57)
4XESTACKTRACE                at
javax/naming/spi/NamingManager.getObjectInstance(NamingManager.j
ava:349)
4XESTACKTRACE                at
com/ibm/ws/naming/util/Helpers.processSerializedObjectForLookupE
xt(Helpers.java:993)
4XESTACKTRACE                at
com/ibm/ws/naming/util/Helpers.processSerializedObjectForLookup(
Helpers.java:796)
4XESTACKTRACE                at
com/ibm/ws/naming/jndicos/CNContextImpl.cacheLookup(CNContextImp
l.java:4308)
4XESTACKTRACE                at
com/ibm/ws/naming/jndicos/CNContextImpl.doLookup(CNContextImpl.j
ava:1799)
4XESTACKTRACE                at
com/ibm/ws/naming/jndicos/CNContextImpl.doLookup(CNContextImpl.j
ava:1776)

Local fix

Problem summary

****************************************************************
* USERS AFFECTED:  All users of IBM WebSphere Application      *
*                  Server                                      *
****************************************************************
* PROBLEM DESCRIPTION: Deadlock possible between J2C lookup    *
*                      and Resource Adapter shutdown threads   *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
The J2C lookup and Resource Adapter shutdown code are locking
on the same objects and can result in a deadlock during the
server shutdown.The javacore can contain the deadlocking
threads as provided in the "Error Description" section of this
APAR.

Problem conclusion

The J2C component has been updated to resolve the
synchronization issues.
The fix for this APAR is currently targeted for inclusion in
fix packs 7.0.0.31, 8.0.0.8 and 8.5.5.1. 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
PM93319
Reported component name
WEBS APP SERV N
Reported component ID
5724H8800
Reported release
850
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2013-07-18
Closed date
2013-09-25
Last modified date
2013-09-25

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
WEBS APP SERV N
Fixed component ID
5724H8800

Applicable component levels

R700 PSY
UP
R800 PSY
UP
R850 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":"8.5","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
11 January 2022

Tips

PM93319: DEADLOCK BETWEEN J2C LOOKUP AND RA(Resource Adapter) SHUTDOWN THREADS

Fixes are available

Subscribe

APAR status

Closed as program error.

Error description

Local fix

Problem summary

Problem conclusion

Temporary fix

Comments

APAR Information

APAR number

Reported component name

Reported component ID

Reported release

Status

PE

HIPER

Special Attention

Submitted date

Closed date

Last modified date

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

Fixed component ID

Applicable component levels

R700 PSY

R800 PSY

R850 PSY

Document Information

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