[llvm-dev] msan test failures
Roman Lebedev via llvm-dev
llvm-dev at lists.llvm.org
Fri Sep 21 09:02:47 PDT 2018
On Fri, Sep 21, 2018 at 11:28 AM, Nicolas Lesser via llvm-dev
<llvm-dev at lists.llvm.org> wrote:
> I'm seeing some test failures for unit tests for msan (check-msan) happening
> in googletest, which I find weird. I'm on Arch Linux, with r342711. Below is
> one type of error that I see. The full log is 416MB (!) big. My guess is
> that those errors are related, but if anyone needs the full log, I'll
> provide it. Here is a reduced log from the end:
> https://drive.google.com/file/d/1R5bLcCvgmgojkbDo6lB3jYBTBxweJP3v/view?usp=sharing
Could be https://github.com/google/sanitizers/issues/993 that was
fixed by https://reviews.llvm.org/D52272
> What could be the problem? Thanks! :)
>
> SUMMARY: MemorySanitizer: use-of-uninitialized-value
> /home/blitz/projects/llvm/utils/unittest/googletest/src/gtest.cc:474:31 in
> testing::internal::UnitTestOptions::PatternMatchesString(char const*, char
> const*)
> ==15959==WARNING: MemorySanitizer: use-of-uninitialized-value
> #0 0x739054 in
> testing::internal::UnitTestOptions::PatternMatchesString(char const*, char
> const*)
> /home/blitz/projects/llvm/utils/unittest/googletest/src/gtest.cc:474:31
> #1 0x738fc7 in
> testing::internal::UnitTestOptions::PatternMatchesString(char const*, char
> const*)
> /home/blitz/projects/llvm/utils/unittest/googletest/src/gtest.cc:471:31
> #2 0x738fc7 in
> testing::internal::UnitTestOptions::PatternMatchesString(char const*, char
> const*)
> /home/blitz/projects/llvm/utils/unittest/googletest/src/gtest.cc:471:31
> #3 0x738fc7 in
> testing::internal::UnitTestOptions::PatternMatchesString(char const*, char
> const*)
> /home/blitz/projects/llvm/utils/unittest/googletest/src/gtest.cc:471:31
> #4 0x738fc7 in
> testing::internal::UnitTestOptions::PatternMatchesString(char const*, char
> const*)
> /home/blitz/projects/llvm/utils/unittest/googletest/src/gtest.cc:471:31
> #5 0x7aaeb8 in
> testing::internal::UnitTestOptions::MatchesFilter(std::__1::basic_string<char,
> std::__1::char_traits<char>, std::__1::allocator<char> > const&, char
> const*)
> /home/blitz/projects/llvm/utils/unittest/googletest/src/gtest.cc:483:9
> #6 0x7aaeb8 in testing::internal::UnitTestImpl::GetTestCase(char const*,
> char const*, void (*)(), void (*)())
> /home/blitz/projects/llvm/utils/unittest/googletest/src/gtest.cc:4519
> #7 0x77250b in testing::internal::UnitTestImpl::AddTestInfo(void (*)(),
> void (*)(), testing::TestInfo*)
> /home/blitz/projects/llvm/utils/unittest/googletest/src/gtest-internal-inl.h:661:5
> #8 0x771e64 in testing::internal::MakeAndRegisterTestInfo(char const*,
> char const*, char const*, char const*, testing::internal::CodeLocation, void
> const*, void (*)(), void (*)(), testing::internal::TestFactoryBase*)
> /home/blitz/projects/llvm/utils/unittest/googletest/src/gtest.cc:2556:22
> #9 0x715f10 in
> testing::internal::ParameterizedTestCaseInfo<MemorySanitizerIpTest>::RegisterTests()
> /home/blitz/projects/llvm/utils/unittest/googletest/include/gtest/internal/gtest-param-util.h:586:11
> #10 0x7b8899 in
> testing::internal::ParameterizedTestCaseRegistry::RegisterTests()
> /home/blitz/projects/llvm/utils/unittest/googletest/include/gtest/internal/gtest-param-util.h:714:14
> #11 0x7b8899 in
> testing::internal::UnitTestImpl::RegisterParameterizedTests()
> /home/blitz/projects/llvm/utils/unittest/googletest/src/gtest.cc:2620
> #12 0x7b8899 in testing::internal::UnitTestImpl::PostFlagParsingInit()
> /home/blitz/projects/llvm/utils/unittest/googletest/src/gtest.cc:4454
> #13 0x7b8899 in void testing::internal::InitGoogleTestImpl<char>(int*,
> char**)
> /home/blitz/projects/llvm/utils/unittest/googletest/src/gtest.cc:5356
> #14 0x73080b in main
> /home/blitz/projects/llvm/projects/compiler-rt/lib/msan/tests/msan_test_main.cc:19:3
> #15 0x7fd75b533222 in __libc_start_main (/usr/lib/libc.so.6+0x24222)
> #16 0x46740d in _start
> (/home/blitz/projects/bllvm/projects/compiler-rt/lib/msan/tests/Msan-x86_64-with-call-Test+0x46740d)
>
> Uninitialized value was stored to memory at
> #0 0x470553 in __msan_memcpy.part.350
> /home/blitz/projects/llvm/projects/compiler-rt/lib/msan/msan_interceptors.cc:1488:3
> #1 0x7aadab in std::__1::char_traits<char>::copy(char*, char const*,
> unsigned long)
> /home/blitz/projects/llvm/projects/libcxx/include/__string:225:50
> #2 0x7aadab in std::__1::basic_string<char, std::__1::char_traits<char>,
> std::__1::allocator<char> >::__init(char const*, unsigned long)
> /home/blitz/projects/llvm/projects/libcxx/include/string:1779
> #3 0x7aadab in std::__1::basic_string<char, std::__1::char_traits<char>,
> std::__1::allocator<char> >::basic_string<std::nullptr_t>(char const*)
> /home/blitz/projects/llvm/projects/libcxx/include/string:814
> #4 0x7aadab in testing::internal::UnitTestImpl::GetTestCase(char const*,
> char const*, void (*)(), void (*)())
> /home/blitz/projects/llvm/utils/unittest/googletest/src/gtest.cc:4519
> #5 0x77250b in testing::internal::UnitTestImpl::AddTestInfo(void (*)(),
> void (*)(), testing::TestInfo*)
> /home/blitz/projects/llvm/utils/unittest/googletest/src/gtest-internal-inl.h:661:5
> #6 0x771e64 in testing::internal::MakeAndRegisterTestInfo(char const*,
> char const*, char const*, char const*, testing::internal::CodeLocation, void
> const*, void (*)(), void (*)(), testing::internal::TestFactoryBase*)
> /home/blitz/projects/llvm/utils/unittest/googletest/src/gtest.cc:2556:22
> #7 0x715f10 in
> testing::internal::ParameterizedTestCaseInfo<MemorySanitizerIpTest>::RegisterTests()
> /home/blitz/projects/llvm/utils/unittest/googletest/include/gtest/internal/gtest-param-util.h:586:11
> #8 0x7b8899 in
> testing::internal::ParameterizedTestCaseRegistry::RegisterTests()
> /home/blitz/projects/llvm/utils/unittest/googletest/include/gtest/internal/gtest-param-util.h:714:14
> #9 0x7b8899 in
> testing::internal::UnitTestImpl::RegisterParameterizedTests()
> /home/blitz/projects/llvm/utils/unittest/googletest/src/gtest.cc:2620
> #10 0x7b8899 in testing::internal::UnitTestImpl::PostFlagParsingInit()
> /home/blitz/projects/llvm/utils/unittest/googletest/src/gtest.cc:4454
> #11 0x7b8899 in void testing::internal::InitGoogleTestImpl<char>(int*,
> char**)
> /home/blitz/projects/llvm/utils/unittest/googletest/src/gtest.cc:5356
> #12 0x73080b in main
> /home/blitz/projects/llvm/projects/compiler-rt/lib/msan/tests/msan_test_main.cc:19:3
> #13 0x7fd75b533222 in __libc_start_main (/usr/lib/libc.so.6+0x24222)
>
> Uninitialized value was stored to memory at
> #0 0x470553 in __msan_memcpy.part.350
> /home/blitz/projects/llvm/projects/compiler-rt/lib/msan/msan_interceptors.cc:1488:3
> #1 0x7fd75baf9acf in std::__1::basic_string<char,
> std::__1::char_traits<char>, std::__1::allocator<char>
>>::basic_string(std::__1::basic_string<char, std::__1::char_traits<char>,
> std::__1::allocator<char> > const&) (/usr/local/lib/libc++.so.1+0x92acf)
>
> Uninitialized value was stored to memory at
> #0 0x470553 in __msan_memcpy.part.350
> /home/blitz/projects/llvm/projects/compiler-rt/lib/msan/msan_interceptors.cc:1488:3
> #1 0x7718eb in std::__1::char_traits<char>::copy(char*, char const*,
> unsigned long)
> /home/blitz/projects/llvm/projects/libcxx/include/__string:225:50
> #2 0x7718eb in std::__1::basic_string<char, std::__1::char_traits<char>,
> std::__1::allocator<char> >::__init(char const*, unsigned long)
> /home/blitz/projects/llvm/projects/libcxx/include/string:1779
> #3 0x7718eb in std::__1::basic_string<char, std::__1::char_traits<char>,
> std::__1::allocator<char> >::basic_string<std::nullptr_t>(char const*)
> /home/blitz/projects/llvm/projects/libcxx/include/string:814
> #4 0x7718eb in testing::internal::MakeAndRegisterTestInfo(char const*,
> char const*, char const*, char const*, testing::internal::CodeLocation, void
> const*, void (*)(), void (*)(), testing::internal::TestFactoryBase*)
> /home/blitz/projects/llvm/utils/unittest/googletest/src/gtest.cc:2554
> #5 0x715f10 in
> testing::internal::ParameterizedTestCaseInfo<MemorySanitizerIpTest>::RegisterTests()
> /home/blitz/projects/llvm/utils/unittest/googletest/include/gtest/internal/gtest-param-util.h:586:11
> #6 0x7b8899 in
> testing::internal::ParameterizedTestCaseRegistry::RegisterTests()
> /home/blitz/projects/llvm/utils/unittest/googletest/include/gtest/internal/gtest-param-util.h:714:14
> #7 0x7b8899 in
> testing::internal::UnitTestImpl::RegisterParameterizedTests()
> /home/blitz/projects/llvm/utils/unittest/googletest/src/gtest.cc:2620
> #8 0x7b8899 in testing::internal::UnitTestImpl::PostFlagParsingInit()
> /home/blitz/projects/llvm/utils/unittest/googletest/src/gtest.cc:4454
> #9 0x7b8899 in void testing::internal::InitGoogleTestImpl<char>(int*,
> char**)
> /home/blitz/projects/llvm/utils/unittest/googletest/src/gtest.cc:5356
> #10 0x73080b in main
> /home/blitz/projects/llvm/projects/compiler-rt/lib/msan/tests/msan_test_main.cc:19:3
> #11 0x7fd75b533222 in __libc_start_main (/usr/lib/libc.so.6+0x24222)
>
> Uninitialized value was created by a heap allocation
> #0 0x4709ec in __interceptor_malloc
> /home/blitz/projects/llvm/projects/compiler-rt/lib/msan/msan_interceptors.cc:910:3
> #1 0x7fd75baf8b0b in operator new(unsigned long)
> (/usr/local/lib/libc++.so.1+0x91b0b)
>
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