oschaaf opened a new issue #2000:
URL: https://github.com/apache/incubator-pagespeed-mod/issues/2000
Seems to originate from test only code, so low priority unless related to
a broader issue.
Capturing a flake I caught here for tracking.
```
exec ${PAGER:-/usr/bin/less} "$0" || exit 1
Executing tests from //net/instaweb/http:http_test
-----------------------------------------------------------------------------
[ RUN ] SyncFetcherAdapterTest.SlowFail
==================
WARNING: ThreadSanitizer: heap-use-after-free (pid=12)
Write of size 1 at 0x7b10000044b4 by main thread:
#0 net_instaweb::ThreadSystem::Thread::Start()
/proc/self/cwd/pagespeed/kernel/base/thread.cc:49:12 (http_test+0xad349d)
#1 net_instaweb::(anonymous
namespace)::DelayedFetcher::Fetch(std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> > const&,
net_instaweb::MessageHandler*, net_instaweb::AsyncFetch*)
/proc/self/cwd/net/instaweb/http/sync_fetcher_adapter_test.cc:102:7
(http_test+0x6495db)
#2
net_instaweb::SyncFetcherAdapterTest::TestFailedFetch(net_instaweb::UrlAsyncFetcher*,
long) /proc/self/cwd/net/instaweb/http/sync_fetcher_adapter_test.cc:227:20
(http_test+0x64bcc2)
#3 net_instaweb::SyncFetcherAdapterTest_SlowFail_Test::TestBody()
/proc/self/cwd/net/instaweb/http/sync_fetcher_adapter_test.cc:271:3
(http_test+0x648fa6)
#4 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
(http_test+0xbf58cc)
#5 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
(http_test+0xbd48e1)
#6 testing::Test::Run()
/proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:2508:5
(http_test+0xbb4241)
#7 testing::TestInfo::Run()
/proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:2684:11
(http_test+0xbb52fb)
#8 testing::TestSuite::Run()
/proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:2816:28
(http_test+0xbb5dca)
#9 testing::internal::UnitTestImpl::RunAllTests()
/proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:5338:44
(http_test+0xbc9b7b)
#10 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
(http_test+0xbfb29c)
#11 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
(http_test+0xbd8fe7)
#12 testing::UnitTest::Run()
/proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:4925:10
(http_test+0xbc93ae)
#13 RUN_ALL_TESTS()
/proc/self/cwd/external/com_google_googletest/googletest/include/gtest/gtest.h:2473:46
(http_test+0x661ba7)
#14 PageSpeed::TestRunner::RunTests(int, char**)
/proc/self/cwd/./test/test_runner.h:13:12 (http_test+0x661b51)
#15 main /proc/self/cwd/test/main.cc:11:10 (http_test+0x661a9c)
Previous write of size 8 at 0x7b10000044b0 by thread T3:
#0 free <null> (http_test+0x4512c8)
#1 net_instaweb::(anonymous
namespace)::DelayedFetcher::InvokeCallbackThread::~InvokeCallbackThread()
/proc/self/cwd/net/instaweb/http/sync_fetcher_adapter_test.cc:111:9
(http_test+0x649d2b)
#2 net_instaweb::(anonymous
namespace)::DelayedFetcher::InvokeCallbackThread::Run()
/proc/self/cwd/net/instaweb/http/sync_fetcher_adapter_test.cc:122:7
(http_test+0x649e3c)
#3 net_instaweb::PthreadThreadImpl::InvokeRun(void*)
/proc/self/cwd/pagespeed/kernel/thread/pthread_thread_system.cc:123:21
(http_test+0xacb113)
Thread T3 'delayed_fetch' (tid=21, finished) created by main thread at:
#0 pthread_create <null> (http_test+0x45253b)
#1 net_instaweb::PthreadThreadImpl::StartImpl()
/proc/self/cwd/pagespeed/kernel/thread/pthread_thread_system.cc:94:14
(http_test+0xacae09)
#2 net_instaweb::ThreadSystem::Thread::Start()
/proc/self/cwd/pagespeed/kernel/base/thread.cc:49:21 (http_test+0xad347a)
#3 net_instaweb::(anonymous
namespace)::DelayedFetcher::Fetch(std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> > const&,
net_instaweb::MessageHandler*, net_instaweb::AsyncFetch*)
/proc/self/cwd/net/instaweb/http/sync_fetcher_adapter_test.cc:102:7
(http_test+0x6495db)
#4
net_instaweb::SyncFetcherAdapterTest::TestFailedFetch(net_instaweb::UrlAsyncFetcher*,
long) /proc/self/cwd/net/instaweb/http/sync_fetcher_adapter_test.cc:227:20
(http_test+0x64bcc2)
#5 net_instaweb::SyncFetcherAdapterTest_SlowFail_Test::TestBody()
/proc/self/cwd/net/instaweb/http/sync_fetcher_adapter_test.cc:271:3
(http_test+0x648fa6)
#6 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
(http_test+0xbf58cc)
#7 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
(http_test+0xbd48e1)
#8 testing::Test::Run()
/proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:2508:5
(http_test+0xbb4241)
#9 testing::TestInfo::Run()
/proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:2684:11
(http_test+0xbb52fb)
#10 testing::TestSuite::Run()
/proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:2816:28
(http_test+0xbb5dca)
#11 testing::internal::UnitTestImpl::RunAllTests()
/proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:5338:44
(http_test+0xbc9b7b)
#12 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
(http_test+0xbfb29c)
#13 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
(http_test+0xbd8fe7)
#14 testing::UnitTest::Run()
/proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:4925:10
(http_test+0xbc93ae)
#15 RUN_ALL_TESTS()
/proc/self/cwd/external/com_google_googletest/googletest/include/gtest/gtest.h:2473:46
(http_test+0x661ba7)
#16 PageSpeed::TestRunner::RunTests(int, char**)
/proc/self/cwd/./test/test_runner.h:13:12 (http_test+0x661b51)
#17 main /proc/self/cwd/test/main.cc:11:10 (http_test+0x661a9c)
SUMMARY: ThreadSanitizer: heap-use-after-free
/proc/self/cwd/pagespeed/kernel/base/thread.cc:49:12 in
net_instaweb::ThreadSystem::Thread::Start()
==================
[ OK ] SyncFetcherAdapterTest.SlowFail (1805 ms)
```
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