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  1. JDK
  2. JDK-8289856

[PPC64] SIGSEGV in C2Compiler::init_c2_runtime() after JDK-8289060

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    • b06
    • ppc

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      Description

        VM crashes with SIGSEGV during initialization in C2Compiler::init_c2_runtime() while trying to write into an array with negative index: "OptoReg::vm2opto[r->value()] = i;" (c2compiler.cpp:70).
        "r" is a nullptr and the new implementation of "r->value()" yields a negative value. (Calling nullptr->value() is undefined behavior!)

        Note: Vector registers are OptoRegs but don't have a VMReg representation on PPC64.

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            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8290303 [PPC64] SIGSEGV in C2Compiler::init_c2_runtime() after JDK-8289060

            • P1 - Blocks development and/or testing work, production could not run.
            • Resolved

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8290311 [PPC64] SIGSEGV in C2Compiler::init_c2_runtime() after JDK-8289060

            • P1 - Blocks development and/or testing work, production could not run.
            • Resolved
            relates to

            Enhancement - null JDK-8188139 PPC64: Superword Level Parallelization with VSX

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved

            Bug - A problem which impairs or prevents the functions of the product. JDK-8289060 Undefined Behaviour in class VMReg

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved
            links to

            Commit Commit openjdk/jdk11u-dev/33389865

            Commit Commit openjdk/jdk17u-dev/48d1d419

            Commit Commit openjdk/jdk/e05b2f2c

            Review Review openjdk/jdk11u-dev/1205

            Review Review openjdk/jdk17u-dev/536

            Review Review openjdk/jdk/9403

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                mdoerr Martin Doerr
                mdoerr Martin Doerr
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                  Updated:
                  Resolved: