APAR status
Closed as program error.
Error description
Error Message: Segmentation fault, unexpected exception, or incorrect results in compiled code. . Stack Trace: N/A . Problem is specific to PPC.
Local fix
The failing method(s) can be excluded from JIT compilation. For example if methods package1.Class1.method1 and package2.Class2.method2 are failing the following option could be used: -Xjit:exclude={package1/Class1.method1(*|package2/Class2.method2 (*} Alternatively, the problem can be avoided for all methods by setting the following environment variable before starting the VM: export TR_DisableOOLcheckcast=1 If set correctly the JIT will output the following text to stderr: JIT: env var TR_DisableOOLcheckcast is set to 1
Problem summary
The problem is caused by a JIT compilation bug that can be encountered in certain cases.
Problem conclusion
This defect will be fixed in: 6.0.1 SR5 7.0.0 SR4 . The bug has been fixed such that the JIT will generate correct code in these cases.
Temporary fix
Comments
APAR Information
APAR number
IV32314
Reported component name
JIT
Reported component ID
620700124
Reported release
260
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2012-11-19
Closed date
2012-11-19
Last modified date
2013-05-24
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
JIT
Fixed component ID
620700124
Applicable component levels
R260 PSY
UP
[{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSC9HBA","label":"Just In Time (JIT) Compiler"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"260","Edition":"","Line of Business":{"code":"","label":""}}]
Document Information
Modified date:
24 May 2013