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test flake in admission_control_integration_test #11758

@zuercher

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@zuercher
//test/extensions/filters/http/admission_control:admission_control_integration_test TIMEOUT in 377.9s
2020-06-25T19:40:14.7637997Z TIMEOUT: //test/extensions/filters/http/admission_control:admission_control_integration_test (Summary)
2020-06-25T19:40:14.7640038Z       /build/tmp/_bazel_bazel/b570b5ccd0454dc9af9f65ab1833764d/execroot/envoy/bazel-out/k8-dbg/testlogs/test/extensions/filters/http/admission_control/admission_control_integration_test/test.log
2020-06-25T19:40:14.7641036Z INFO: From Testing //test/extensions/filters/http/admission_control:admission_control_integration_test:
2020-06-25T19:40:14.7642004Z ==================== Test output for //test/extensions/filters/http/admission_control:admission_control_integration_test:
2020-06-25T19:40:14.7642544Z [==========] Running 4 tests from 1 test suite.
2020-06-25T19:40:14.7643256Z [----------] Global test environment set-up.
2020-06-25T19:40:14.7643912Z [----------] 4 tests from IpVersions/AdmissionControlIntegrationTest
2020-06-25T19:40:14.7644416Z [ RUN      ] IpVersions/AdmissionControlIntegrationTest.HttpTest/0
2020-06-25T19:40:14.7645053Z [       OK ] IpVersions/AdmissionControlIntegrationTest.HttpTest/0 (73092 ms)
2020-06-25T19:40:14.7645505Z [ RUN      ] IpVersions/AdmissionControlIntegrationTest.HttpTest/1
2020-06-25T19:40:14.7645968Z [       OK ] IpVersions/AdmissionControlIntegrationTest.HttpTest/1 (73936 ms)
2020-06-25T19:40:14.7646433Z [ RUN      ] IpVersions/AdmissionControlIntegrationTest.GrpcTest/0
2020-06-25T19:40:14.7646880Z [       OK ] IpVersions/AdmissionControlIntegrationTest.GrpcTest/0 (73096 ms)
2020-06-25T19:40:14.7647493Z [ RUN      ] IpVersions/AdmissionControlIntegrationTest.GrpcTest/1
2020-06-25T19:40:14.7648292Z -- Test timed out at 2020-06-25 19:39:15 UTC --
2020-06-25T19:40:14.7649790Z ==================
2020-06-25T19:40:14.7650594Z WARNING: ThreadSanitizer: signal-unsafe call inside of a signal (pid=15)
2020-06-25T19:40:14.7651684Z     #0 malloc /home/brian/src/final/llvm-project/compiler-rt/lib/tsan/rtl/tsan_interceptors_posix.cpp:651:5 (admission_control_integration_test+0x29540a4)
2020-06-25T19:40:14.7652585Z     #1 strdup <null> (libc.so.6+0x9d9b9)
2020-06-25T19:40:14.7653735Z     #2 spdlog::details::os::localtime(long const&) /proc/self/cwd/external/com_github_gabime_spdlog/include/spdlog/details/os-inl.h:97:5 (admission_control_integration_test+0x2a51d27)
2020-06-25T19:40:14.7655923Z     #3 spdlog::pattern_formatter::get_time_(spdlog::details::log_msg const&) /proc/self/cwd/external/com_github_gabime_spdlog/include/spdlog/details/pattern_formatter-inl.h:1037:16 (admission_control_integration_test+0x2a96fd5)
2020-06-25T19:40:14.7657668Z     #4 spdlog::pattern_formatter::format(spdlog::details::log_msg const&, fmt::v6::basic_memory_buffer<char, 250ul, std::__1::allocator<char> >&) /proc/self/cwd/external/com_github_gabime_spdlog/include/spdlog/details/pattern_formatter-inl.h:1021:22 (admission_control_integration_test+0x29ef721)
2020-06-25T19:40:14.7659141Z     #5 Envoy::Logger::DelegatingLogSink::log(spdlog::details::log_msg const&) /proc/self/cwd/source/common/common/logger.cc:58:17 (admission_control_integration_test+0x7a2fd01)
2020-06-25T19:40:14.7660311Z     #6 spdlog::logger::sink_it_(spdlog::details::log_msg const&) /proc/self/cwd/external/com_github_gabime_spdlog/include/spdlog/logger-inl.h:178:23 (admission_control_integration_test+0x29ef0db)
2020-06-25T19:40:14.7664689Z     #7 void spdlog::logger::log<char const*, void const*>(spdlog::source_loc, spdlog::level::level_enum, fmt::v6::basic_string_view<char>, char const* const&, void const* const&) /proc/self/cwd/external/com_github_gabime_spdlog/include/spdlog/logger.h:92:17 (admission_control_integration_test+0x600c95b)
2020-06-25T19:40:14.7666545Z     #8 Envoy::BackwardsTrace::logFault(char const*, void const*) /proc/self/cwd/bazel-out/k8-dbg/bin/source/server/_virtual_includes/backtrace_lib/server/backtrace.h:104:5 (admission_control_integration_test+0x600bf30)
2020-06-25T19:40:14.7667842Z     #9 Envoy::SignalAction::sigHandler(int, siginfo_t*, void*) /proc/self/cwd/source/common/signal/signal_action.cc:57:10 (admission_control_integration_test+0x6009b46)
2020-06-25T19:40:14.7669255Z     #10 __tsan::CallUserSignalHandler(__tsan::ThreadState*, bool, bool, bool, int, __sanitizer::__sanitizer_siginfo*, void*) /home/brian/src/final/llvm-project/compiler-rt/lib/tsan/rtl/tsan_interceptors_posix.cpp:1907:7 (admission_control_integration_test+0x295c20f)
2020-06-25T19:40:14.7670635Z     #11 void testing::internal::HandleSehExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*) /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:2433:10 (admission_control_integration_test+0x7b4682c)
2020-06-25T19:40:14.7671913Z     #12 void testing::internal::HandleExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*) /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:2469:14 (admission_control_integration_test+0x7b2a8be)
2020-06-25T19:40:14.7672908Z     #13 testing::Test::Run() /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:2508:5 (admission_control_integration_test+0x7b0fbe1)
2020-06-25T19:40:14.7673665Z     #14 testing::TestInfo::Run() /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:2684:11 (admission_control_integration_test+0x7b10a83)
2020-06-25T19:40:14.7674440Z     #15 testing::TestSuite::Run() /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:2816:28 (admission_control_integration_test+0x7b114ba)
2020-06-25T19:40:14.7675253Z     #16 testing::internal::UnitTestImpl::RunAllTests() /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:5338:44 (admission_control_integration_test+0x7b20c5d)
2020-06-25T19:40:14.7676384Z     #17 bool testing::internal::HandleSehExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*) /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:2433:10 (admission_control_integration_test+0x7b4ddac)
2020-06-25T19:40:14.7677966Z     #18 bool testing::internal::HandleExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*) /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:2469:14 (admission_control_integration_test+0x7b2e5ce)
2020-06-25T19:40:14.7679347Z     #19 testing::UnitTest::Run() /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:4925:10 (admission_control_integration_test+0x7b2051b)
2020-06-25T19:40:14.7680118Z     #20 RUN_ALL_TESTS() /proc/self/cwd/external/com_google_googletest/googletest/include/gtest/gtest.h:2473:46 (admission_control_integration_test+0x5639a47)
2020-06-25T19:40:14.7680854Z     #21 Envoy::TestRunner::RunTests(int, char**) /proc/self/cwd/test/test_runner.cc:134:10 (admission_control_integration_test+0x5638dbd)
2020-06-25T19:40:14.7681569Z     #22 main /proc/self/cwd/test/main.cc:34:10 (admission_control_integration_test+0x5636701)
2020-06-25T19:40:14.7682135Z 
2020-06-25T19:40:14.7683186Z SUMMARY: ThreadSanitizer: signal-unsafe call inside of a signal (/lib/x86_64-linux-gnu/libc.so.6+0x9d9b9) in strdup
2020-06-25T19:40:14.7683756Z ==================

I'm pretty sure the TSAN error is because the test was killed. I elided the other, very similar, stacks from every other log attempt made during the signal.

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