https://issues.dlang.org/show_bug.cgi?id=21919

          Issue ID: 21919
           Summary: darwin: SEGV in core.thread tests on OSX 11
           Product: D
           Version: D2
          Hardware: x86_64
                OS: Mac OS X
            Status: NEW
          Severity: major
          Priority: P1
         Component: druntime
          Assignee: nobody@puremagic.com
          Reporter: ibuclaw@gdcproject.org

Native configuration is x86_64-apple-darwin20

        === gdc tests ===
Running target unix
FAIL: gdc.test/runnable/eh.d   execution test
FAIL: gdc.test/runnable/eh.d -O2   execution test
FAIL: gdc.test/runnable/eh.d -O2 -fPIC   execution test
FAIL: gdc.test/runnable/eh.d -O2 -fPIC -shared-libphobos   execution test
FAIL: gdc.test/runnable/eh.d -O2 -shared-libphobos   execution test
FAIL: gdc.test/runnable/eh.d -fPIC   execution test
FAIL: gdc.test/runnable/eh.d -fPIC -shared-libphobos   execution test
FAIL: gdc.test/runnable/eh.d -shared-libphobos   execution test
FAIL: gdc.test/runnable/test4.d   execution test
FAIL: gdc.test/runnable/test4.d -shared-libphobos   execution test
FAIL: gdc.test/runnable/testdstress.d   execution test
FAIL: gdc.test/runnable/testdstress.d -shared-libphobos   execution test

        === gdc Summary ===
# of expected passes        10388
# of unexpected failures    12

        === libphobos tests ===
Running target unix
FAIL: libphobos.druntime/core/thread.d execution test
FAIL: libphobos.exceptions/chain.d execution test
FAIL: libphobos.phobos/std/concurrency.d execution test

        === libphobos Summary ===
# of expected passes        394
# of unexpected failures    3
# of unsupported tests      1

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