IV20278: INCORRECT BLOCK VERSIONING CAUSING CRASHES
Closed as program error.
Error Message: The JVM crashes while executing an AOT-compiled Java method and tries to dereference an invalid pointer. This problem can only happen when AOT compilation support is enabled and the block versioning optimization makes the wrong decision. . Stack Trace: N/A .
The problem can be avoided by either: (1) disabling block versioning option using the -Xjit:disableBlockVersioner option (2) disablling AOT compilation support using the -Xnoaot option
This problem can only occur when AOT compilation support is enabled. The problem is caused by the block versioning optimization. The optimization makes certain assumptions about an instanceof check that is present when creating the multiple versions of the block, but in one particular scenario, this assumption is incorrect and as a result, some versions of the block are generated incorrectly.
This defect will be fixed in: 6.0.1 SR2 7.0.0 SR1 6.0.0 SR11 . The JVM is updated to prevent block versioner from proceeding further under the scenario identified.
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APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
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