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  1. JDK
  2. JDK-8216136

Take Compile_lock for SystemDictionary::_modification_counter with safepoint check

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    • Enhancement
    • Resolution: Fixed
    • P3
    • 13
    • 13
    • hotspot
    • b06

    Description

      This should use atomic operations instead. The Compile_lock can then be made _safepoint_check_always.

      Edit. instead of using atomics make compiler code go to ThreadInVMFromNative before taking the Compile_lock so that the Compile_lock always checks for safepoints.

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. JDK-8213209 [REDO] Allow Klass::_subklass and _next_sibling to have unloaded classes

          • P2 - Crashes, loss of data, severe memory leak.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. JDK-8215575 C2 crash: assert(get_instanceKlass()->is_loaded()) failed: must be at least loaded

          • P2 - Crashes, loss of data, severe memory leak.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. JDK-8222446 assert(C->env()->system_dictionary_modification_counter_changed()) failed: Must invalidate if TypeFuncs differ

          • P3 - Major loss of function.
          • Resolved

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              coleenp Coleen Phillimore
              coleenp Coleen Phillimore
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                Created:
                Updated:
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