[llvm-bugs] [Bug 25829] New: ppc64 crashes when running ThreadPool unittests

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=25829

            Bug ID: 25829
           Summary: ppc64 crashes when running ThreadPool unittests
           Product: new-bugs
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: mehdi.amini at apple.com
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

See:
http://lab.llvm.org:8011/builders/ppc64le-clang/builds/3301/steps/check-all_1/logs/stdio

Sample crash log looks like:

******************** TEST 'LLVM-Unit ::
Support/Release+Asserts/SupportTests/ThreadPoolTest.Async' FAILED
********************
Note: Google Test filter = ThreadPoolTest.Async
[==========] Running 1 test from 1 test case.
[----------] Global test environment set-up.
[----------] 1 test from ThreadPoolTest
[ RUN      ] ThreadPoolTest.Async
0  SupportTests      0x00000000102bec34
llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 116
1  SupportTests      0x00000000102bf1a0
2  SupportTests      0x00000000102bf614
3  linux-vdso64.so.1 0x00003fff8f370478 __kernel_sigtramp_rt64 + 0
4  SupportTests      0x00000000102d5288 void
std::__once_call_impl<std::_Bind_simple<std::_Mem_fn<void
(std::__future_base::_State_baseV2::*)(std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*, bool*)>
(std::__future_base::_State_baseV2*,
std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*, bool*)> >() + 24
5  SupportTests      0x00000000102d5284 void
std::__once_call_impl<std::_Bind_simple<std::_Mem_fn<void
(std::__future_base::_State_baseV2::*)(std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*, bool*)>
(std::__future_base::_State_baseV2*,
std::function<std::unique_ptr<std::__future_base::_Result_base,
std::__future_base::_Result_base::_Deleter> ()>*, bool*)> >() + 20
6  libpthread.so.0   0x00003fff8f330fd0
7  SupportTests      0x00000000102d4b5c
8  SupportTests      0x00000000102d3e3c
9  libstdc++.so.6    0x00003fff8f0e5584
10 libpthread.so.0   0x00003fff8f327e70
11 libc.so.6         0x00003fff8eefa560 clone + 152

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