[llvm-bugs] [Bug 49067] New: Detached task with child tasks can deadlock in omp_fulfill_event

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=49067

            Bug ID: 49067
           Summary: Detached task with child tasks can deadlock in
                    omp_fulfill_event
           Product: OpenMP
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Runtime Library
          Assignee: unassignedbugs at nondot.org
          Reporter: protze at itc.rwth-aachen.de
                CC: llvm-bugs at lists.llvm.org

Executing the attached code with more than 4 thread leads to all threads
waiting in a while loop in 
/w0/pj416018/llvm-project/openmp/runtime/src/kmp_tasking.cpp:3808

As I understand the related runtime code, the runtime assumes that there are no
child tasks left at this point.

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