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Type:
Bug
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Resolution: Fixed
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Priority:
Major - P3
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Affects Version/s: None
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Component/s: None
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Labels:
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Fully Compatible
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ALL
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Dev Platform 2020-07-13, Dev Platform 2020-07-27
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0
The printStackTrace function allocates memory and is called as part of signal handlers. ThreadSanitizer warns about any calls to malloc/free and new/delete as part of signal handling. These memory allocation calls are expected and the warning should be suppressed in etc/tsan.suppressions.
Here is my proposed list from ad-hoc testing. The allocations are from many places: boost::log, RamLog, the backtrace code, BSONObj, json escaping, etc.
signal:boost::log::v2s_mt_posix::aux::stateless_allocator<unsigned char>::allocate signal:boost::log::v2s_mt_posix::aux::stateless_allocator<unsigned char>::deallocate signal:boost::log::v2s_mt_posix::aux::stateless_allocator<char>::allocate signal:boost::log::v2s_mt_posix::aux::stateless_allocator<char>::deallocate signal:__gnu_cxx::new_allocator<boost::shared_ptr<boost::log::v2s_mt_posix::sinks::sink> >::allocate signal:__gnu_cxx::new_allocator<boost::shared_ptr<boost::log::v2s_mt_posix::sinks::sink> >::deallocate signal:mongo::mongoMalloc signal:mongo::intrusive_ptr_release signal:std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_assign signal:__gnu_cxx::new_allocator<boost::shared_ptr<boost::log::v2s_mt_posix::sinks::sink> >::deallocate signal:std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_mutate signal:mongo::mongoRealloc signal:__gnu_cxx::new_allocator<unsigned long>::allocate signal:__gnu_cxx::new_allocator<unsigned long>::deallocate signal:__gnu_cxx::new_allocator<mongo::BSONElement>::allocate signal:__gnu_cxx::new_allocator<mongo::BSONElement>::deallocate signal:__gnu_cxx::new_allocator<char>::allocate signal:__gnu_cxx::new_allocator<char>::deallocate signal:mongo::logv2::(anonymous namespace)::JSONValueExtractor::storeUnquoted signal:mongo::StackTraceAddressMetadata::BaseAndName::~BaseAndName signal:mongo::stack_trace_detail::(anonymous namespace)::printStackTraceImpl
- is related to
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SERVER-48622 stacktrace_test segfaults with TSAN
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- Open
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- related to
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- Closed
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