crash log for renderer (pid 19959): STDOUT: This is a testharness.js-based test. STDOUT: PASS Dynamically added async import doesn't block following import. STDOUT: Harness: the test ran to completion. STDOUT: STDERR: ASAN:SIGSEGV STDERR: ================================================================= STDERR: ==4==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000038 (pc 0x0000040b1348 bp 0x7fff703b2110 sp 0x7fff703b20a0 T0) STDERR: #0 0x40b1347 in isDone third_party/WebKit/Source/core/html/imports/HTMLImportLoader.h:84:34 STDERR: #1 0x40b1347 in blink::HTMLImportChild::hasFinishedLoading() const third_party/WebKit/Source/core/html/imports/HTMLImportChild.cpp:157:0 STDERR: #2 0x40bcc89 in blink::LinkImport::hasLoaded() const third_party/WebKit/Source/core/html/imports/LinkImport.cpp:131:34 STDERR: #3 0x3ea2805 in blink::HTMLLinkElement::dispatchPendingEvent(blink::EventSender*) third_party/WebKit/Source/core/html/HTMLLinkElement.cpp:386:9 STDERR: #4 0x3ea2615 in blink::EventSender::dispatchPendingEvents() third_party/WebKit/Source/core/events/EventSender.h:105:13 STDERR: #5 0x3a087d0 in blink::Document::implicitClose() third_party/WebKit/Source/core/dom/Document.cpp:2478:9 STDERR: #6 0x4a54ae0 in blink::FrameLoader::checkCompleted() third_party/WebKit/Source/core/loader/FrameLoader.cpp:492:9 STDERR: #7 0x4a5489c in blink::FrameLoader::finishedParsing() third_party/WebKit/Source/core/loader/FrameLoader.cpp:408:5 STDERR: #8 0x3a27505 in blink::Document::finishedParsing() third_party/WebKit/Source/core/dom/Document.cpp:4540:9 STDERR: #9 0x40c0dce in end third_party/WebKit/Source/core/html/parser/HTMLDocumentParser.cpp:853:5 STDERR: #10 0x40c0dce in attemptToRunDeferredScriptsAndEnd third_party/WebKit/Source/core/html/parser/HTMLDocumentParser.cpp:866:0 STDERR: #11 0x40c0dce in blink::HTMLDocumentParser::prepareToStopParsing() third_party/WebKit/Source/core/html/parser/HTMLDocumentParser.cpp:272:0 STDERR: #12 0x40ce611 in attemptToEnd third_party/WebKit/Source/core/html/parser/HTMLDocumentParser.cpp:878:5 STDERR: #13 0x40ce611 in blink::HTMLDocumentParser::finish() third_party/WebKit/Source/core/html/parser/HTMLDocumentParser.cpp:931:0 STDERR: #14 0x4a3ba67 in blink::DocumentWriter::end() third_party/WebKit/Source/core/loader/DocumentWriter.cpp:117:5 STDERR: #15 0x4a1f449 in endWriting third_party/WebKit/Source/core/loader/DocumentLoader.cpp:744:5 STDERR: #16 0x4a1f449 in blink::DocumentLoader::finishedLoading(double) third_party/WebKit/Source/core/loader/DocumentLoader.cpp:244:0 STDERR: #17 0x4a25d12 in blink::DocumentLoader::maybeLoadEmpty() third_party/WebKit/Source/core/loader/DocumentLoader.cpp:665:5 STDERR: #18 0x4a271c1 in blink::DocumentLoader::startLoadingMainResource() third_party/WebKit/Source/core/loader/DocumentLoader.cpp:678:9 STDERR: #19 0x4a5abfa in blink::FrameLoader::startLoad(blink::FrameLoadRequest&, blink::FrameLoadType, blink::NavigationPolicy) third_party/WebKit/Source/core/loader/FrameLoader.cpp:1293:5 STDERR: #20 0x4a58ec6 in blink::FrameLoader::load(blink::FrameLoadRequest const&) third_party/WebKit/Source/core/loader/FrameLoader.cpp:813:5 STDERR: #21 0x2d32808 in blink::WebLocalFrameImpl::loadRequest(blink::WebURLRequest const&) third_party/WebKit/Source/web/WebLocalFrameImpl.cpp:937:5 STDERR: #22 0x5548e0 in content::BlinkTestRunner::OnReset() content/shell/renderer/layout_test/blink_test_runner.cc:772:3 STDERR: #23 0x553711 in Dispatch ipc/ipc_message.h:148:5 STDERR: #24 0x553711 in content::BlinkTestRunner::OnMessageReceived(IPC::Message const&) content/shell/renderer/layout_test/blink_test_runner.cc:619:0 STDERR: #25 0x7287783 in content::RenderViewImpl::OnMessageReceived(IPC::Message const&) content/renderer/render_view_impl.cc:1280:9 STDERR: #26 0x7d8cee7 in content::MessageRouter::RouteMessage(IPC::Message const&) content/common/message_router.cc:54:3 STDERR: #27 0x7d8cd0c in content::MessageRouter::OnMessageReceived(IPC::Message const&) content/common/message_router.cc:46:10 STDERR: #28 0x70f1a76 in content::ChildThreadImpl::OnMessageReceived(IPC::Message const&) content/child/child_thread_impl.cc:587:10 STDERR: #29 0x7e3f38d in IPC::ChannelProxy::Context::OnDispatchMessage(IPC::Message const&) ipc/ipc_channel_proxy.cc:294:3 STDERR: #30 0x733d37 in Run base/callback.h:396:12 STDERR: #31 0x733d37 in base::debug::TaskAnnotator::RunTask(char const*, char const*, base::PendingTask const&) base/debug/task_annotator.cc:62:0 STDERR: #32 0x71f2a7d in scheduler::TaskQueueManager::ProcessTaskFromWorkQueue(unsigned long, bool, base::PendingTask*) components/scheduler/child/task_queue_manager.cc:653:5 STDERR: #33 0x71f1015 in scheduler::TaskQueueManager::DoWork(bool) components/scheduler/child/task_queue_manager.cc:608:9 STDERR: #34 0x733d37 in Run base/callback.h:396:12 STDERR: #35 0x733d37 in base::debug::TaskAnnotator::RunTask(char const*, char const*, base::PendingTask const&) base/debug/task_annotator.cc:62:0 STDERR: #36 0x6833a7 in base::MessageLoop::RunTask(base::PendingTask const&) base/message_loop/message_loop.cc:444:3 STDERR: #37 0x6843ad in DeferOrRunPendingTask base/message_loop/message_loop.cc:454:5 STDERR: #38 0x6843ad in base::MessageLoop::DoWork() base/message_loop/message_loop.cc:566:0 STDERR: #39 0x688f90 in base::MessagePumpDefault::Run(base::MessagePump::Delegate*) base/message_loop/message_pump_default.cc:32:21 STDERR: #40 0x6a3a48 in base::RunLoop::Run() base/run_loop.cc:55:3 STDERR: #41 0x681dae in base::MessageLoop::Run() base/message_loop/message_loop.cc:303:3 STDERR: #42 0x72eaca3 in content::RendererMain(content::MainFunctionParams const&) content/renderer/renderer_main.cc:220:7 STDERR: #43 0x62e909 in content::RunZygote(content::MainFunctionParams const&, content::ContentMainDelegate*) content/app/content_main_runner.cc:308:14 STDERR: #44 0x63087f in content::ContentMainRunnerImpl::Run() content/app/content_main_runner.cc:783:12 STDERR: #45 0x62de9a in content::ContentMain(content::ContentMainParams const&) content/app/content_main.cc:19:15 STDERR: #46 0x4e0795 in main content/shell/app/shell_main.cc:49:10 STDERR: #47 0x7f6ba938476c in __libc_start_main /build/buildd/eglibc-2.15/csu/libc-start.c:226:0 STDERR: STDERR: AddressSanitizer can not provide additional info. STDERR: SUMMARY: AddressSanitizer: SEGV (/mnt/data/b/build/slave/WebKit_Linux_Oilpan_ASAN/build/src/out/Release/content_shell+0x40b1347) STDERR: ==4==ABORTING