APAR status
Closed as program error.
Error description
Error Message: The VM crashes in compiled code while running with full speed debug mode turned on. . Stack Trace: N/A .
Local fix
Problem summary
This error only occurs while running in debugging mode. During class redefinition the JIT was not properly patching methods while running under full speed debug mode. This could result in a compiled method branching to an invalid method that was compiled before class redefinition. Producing JIT verbose logs can help identify this error. If a method is compiled more than once during full speed debug mode, and is on top of the stack trace produced by the crash, it is possible that the method was not properly patched after class redefinition.
Problem conclusion
This defect will be fixed in: 7.0.0 SR6 6.0.1 SR7 6.0.0 SR15 FP1 . The code that patches methods is properly reset when class redefinition occurs.
Temporary fix
Comments
APAR Information
APAR number
IV50394
Reported component name
JIT
Reported component ID
620700124
Reported release
260
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2013-10-04
Closed date
2013-10-04
Last modified date
2013-10-20
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
R600 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:
20 October 2013