IZ68010: 64-BIT ZLINUX/ZOS JAVA CRASH IN SYSTEM.ARRAYCOPY
Closed as program error.
Error Message: A SIGSEGV/ABEND is raised when a JIT-compiled Java method attempts to call System.arraycopy with an unusual length or array index. The number has just been incremented from -1 to 0. The problem may also manifest itself as a crash in other locations, or incorrect computation involving a mixture of ints and longs. The problem only affects 64-bit 390, on both z/Linux and z/OS. . Stack Trace: N/A .
This issue can be avoided by setting the environment variable TR_NRECORDLGFR=1 before launching the JVM.
The problem is caused when a 32-bit (int) value is sign-extended and assigned to a 64-bit (long) global register, which is later clobbered by an int operation, and then finally used for a long operation again. Under some circumstances, the JIT compiler may optimize away the required sign extension incorrectly.
This defect will be fixed in: 6.0.0 SR8 5.0.0 SR12 . The JIT compiler has been updated to correct the optimization. . To obtain the fix: Install build 20100126 or later
Reported component name
JAVA 5 JIT
Reported component ID
Last modified date
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fixed component name
JAVA 5 JIT
Fixed component ID
Applicable component levels
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