APAR status
Closed as program error.
Error description
Error Message: Post migration to 142_SR13,the following deadlock may be seen at startup. 1LKDEADLOCK Deadlock detected !!! NULL --------------------- NULL 2LKDEADLOCKTHR Thread "WebContainer : 39" (0x3DA8E5A8) 3LKDEADLOCKWTR is waiting for: 4LKDEADLOCKMON sys_mon_t:0x461EDEB8 infl_mon_t: 0x00000000: 4LKDEADLOCKOBJ com.ibm.rmi.io.ValueUtility$ValueUtilityLock@88D73C50/88D73C58: 3LKDEADLOCKOWN which is owned by: 2LKDEADLOCKTHR Thread "WebContainer : 6" (0x458CBF28) 3LKDEADLOCKWTR which is waiting for: 4LKDEADLOCKMON sys_mon_t:0x461E25C8 infl_mon_t: 0x00000000: 4LKDEADLOCKOBJ com.ibm.rmi.io.ValueUtility$ValueUtilityLock@88EC3A68/88EC3A70: 3LKDEADLOCKOWN which is owned by: 2LKDEADLOCKTHR Thread "WebContainer : 39" (0x3DA8E5A8) . Stack Trace: "WebContainer : 39" (TID:0x70C95E20, sys_thread_t:0x3DA8E5A8, state:CW, native ID:0xCE14) prio=5 at com.ibm.rmi.io.ValueUtility$ValueUtilityLock.createTC(ValueUtili ty.java(Compiled Code)) at com.ibm.rmi.io.ValueUtility$ValueUtilityLock.createValueTC(Value Utility.java(Compiled Code)) at com.ibm.rmi.io.ValueUtility.createTypeCodeForClass(ValueUtility. java(Compiled Code)) at com.ibm.rmi.io.ValueUtility.getTypeCode(ValueUtility.java(Compil ed Code)) at com.ibm.rmi.io.ValueUtility.getTypeCode(ValueUtility.java(Compil ed Code)) at com.ibm.rmi.io.ValueUtility.createTypeCodeForClass(ValueUtility. java(Compiled Code)) at com.ibm.rmi.io.ValueUtility.getTypeCode(ValueUtility.java(Compil ed Code)) at com.ibm.rmi.io.ValueUtility.getMembers(ValueUtility.java(Compile d Code)) at com.ibm.rmi.io.ValueUtility.access$100(ValueUtility.java(Compile d Code)) at com.ibm.rmi.io.ValueUtility$ValueUtilityLock.createTC(ValueUtili ty.java(Compiled Code)) at com.ibm.rmi.io.ValueUtility$ValueUtilityLock.createValueTC(Value Utility.java(Compiled Code)) at com.ibm.rmi.io.ValueUtility.createTypeCodeForClass(ValueUtility. java(Compiled Code)) at com.ibm.rmi.io.ValueUtility.getTypeCode(ValueUtility.java(Compil ed Code)) at com.ibm.rmi.io.ValueUtility.getMembers(ValueUtility.java(Compile d Code)) at com.ibm.rmi.io.ValueUtility.translate(ValueUtility.java(Compiled Code)) at com.ibm.rmi.util.RepositoryId.getFVDesc(RepositoryId.java(Compil ed Code)) at com.ibm.rmi.util.RepositoryId.createForJavaType(RepositoryId.jav a(Compiled Code)) at com.ibm.rmi.io.ValueUtility.createTypeCodeForClass(ValueUtility. java(Compiled Code)) at com.ibm.rmi.io.ValueUtility.getTypeCode(ValueUtility.java(Compil ed Code)) at com.ibm.rmi.io.ValueUtility.getTypeCode(ValueUtility.java(Compil ed Code)) at com.ibm.rmi.io.ValueUtility.createTypeCodeForClass(ValueUtility. java(Compiled Code)) at com.ibm.rmi.io.ValueUtility.getTypeCode(ValueUtility.java(Compil ed Code)) at com.ibm.rmi.io.ValueUtility.translate(ValueUtility.java(Compiled Code)) at com.ibm.rmi.util.RepositoryId.getFVDesc(RepositoryId.java(Compil ed Code)) at com.ibm.rmi.util.RepositoryId.createForJavaType(RepositoryId.jav a(Compiled Code)) at com.ibm.rmi.io.ValueUtility.getMembers(ValueUtility.java(Compile d Code)) at com.ibm.rmi.io.ValueUtility.translate(ValueUtility.java(Compiled Code)) at com.ibm.rmi.util.RepositoryId.getFVDesc(RepositoryId.java(Compil ed Code)) at com.ibm.rmi.util.RepositoryId.createForJavaType(RepositoryId.jav a(Compiled Code)) at com.ibm.rmi.util.RepositoryId.createForAnyType(RepositoryId.java (Compiled Code)) at com.ibm.rmi.iiop.CDRInputStream.fast_read_value(CDRInputStream.j ava(Compiled Code)) at com.ibm.rmi.iiop.CDRInputStream.read_value(CDRInputStream.java:2 017) at com.a.b._RemoteService_Stub.remoteMethod(_RemoteService_Stub.jav a:249) .
Local fix
Problem summary
The problem was caused due to a synchronization issue in the ValueUtilityLock class when multiple threads try to initialize classes holding references to each other
Problem conclusion
The deadlock was resolved by using thread safe structures.
Temporary fix
Comments
APAR Information
APAR number
PM03111
Reported component name
WIN AMD 64 JAVA
Reported component ID
620400102
Reported release
142
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2009-12-10
Closed date
2010-03-19
Last modified date
2010-03-19
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
WIN AMD 64 JAVA
Fixed component ID
620400102
Applicable component levels
R142 PSN
UP
[{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSCGLMF","label":"Java SDK"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"1.4.2","Edition":"","Line of Business":{"code":"","label":""}}]
Document Information
Modified date:
19 March 2010