Various tests are failing on Linux CFI as a result of the latest V8 autoroll; see https://ci.chromium.org/buildbot/chromium.memory/Linux%20CFI/6233:

../../v8/src/compiler/operator.h:215:10: runtime error: control flow integrity check for type 'v8::internal::compiler::Operator1<int, v8::internal::compiler::OpEqualTo<int>, v8::internal::compiler::OpHash<int> >' failed during cast to unrelated type (vtable address 0x00000094f4a0)
0x00000094f4a0: note: vtable is of type 'v8::internal::compiler::Operator1<v8::internal::compiler::IfValueParameters, v8::internal::compiler::OpEqualTo<v8::internal::compiler::IfValueParameters>, v8::internal::compiler::OpHash<v8::internal::compiler::IfValueParameters> >'
 00 00 00 00  80 ec df 04 00 00 00 00  40 f1 df 04 00 00 00 00  70 f1 df 04 00 00 00 00  10 f2 df 04
              ^
    #0 0x4de4ce7 in int const& v8::internal::compiler::OpParameter<int>(v8::internal::compiler::Operator const*) ./../../v8/src/compiler/operator.h:216:9
    #1 0x4f64a17 in v8::internal::compiler::Verifier::Visitor::Check(v8::internal::compiler::Node*, v8::internal::compiler::AllNodes const&) ./../../v8/src/compiler/verifier.cc:301:17
    #2 0x4f66c2d in v8::internal::compiler::Verifier::Run(v8::internal::compiler::Graph*, v8::internal::compiler::Verifier::Typing, v8::internal::compiler::Verifier::CheckInputs, v8::internal::compiler::Verifier::CodeType) ./../../v8/src/compiler/verifier.cc:1719:44
    #3 0x4ef363e in void v8::internal::compiler::PipelineImpl::Run<v8::internal::compiler::VerifyGraphPhase, bool>(bool) ./../../v8/src/compiler/pipeline.cc:1071:9
    #4 0x4ef1a34 in v8::internal::compiler::PipelineImpl::OptimizeGraph(v8::internal::compiler::Linkage*) ./../../v8/src/compiler/pipeline.cc:1962:5
    #5 0x4ef185f in v8::internal::compiler::PipelineCompilationJob::ExecuteJobImpl() ./../../v8/src/compiler/pipeline.cc:835:18
    #6 0x4dae04b in v8::internal::CompilationJob::ExecuteJob() ./../../v8/src/compiler.cc:111:22
    #7 0x4dabbbe in v8::internal::OptimizingCompileDispatcher::CompileNext(v8::internal::CompilationJob*) ./../../v8/src/compiler-dispatcher/optimizing-compile-dispatcher.cc:115:40
    #8 0x4daca83 in v8::internal::OptimizingCompileDispatcher::CompileTask::RunInternal() ./../../v8/src/compiler-dispatcher/optimizing-compile-dispatcher.cc:67:20
    #9 0x34b6754 in base::OnceCallback<void ()>::Run() && ./../../base/callback.h:95:12
    #10 0x5797df7 in base::debug::TaskAnnotator::RunTask(char const*, base::PendingTask*) ./../../base/debug/task_annotator.cc:61:33
    #11 0x5829624 in base::internal::TaskTracker::RunOrSkipTask(base::internal::Task, base::internal::Sequence*, bool) ./../../base/task_scheduler/task_tracker.cc:460:23
    #12 0x582b084 in base::internal::TaskTrackerPosix::RunOrSkipTask(base::internal::Task, base::internal::Sequence*, bool) ./../../base/task_scheduler/task_tracker_posix.cc:25:16
    #13 0x5828a18 in base::internal::TaskTracker::RunAndPopNextTask(scoped_refptr<base::internal::Sequence>, base::internal::CanScheduleSequenceObserver*) ./../../base/task_scheduler/task_tracker.cc:353:3
    #14 0x581fa73 in base::internal::SchedulerWorker::Thread::ThreadMain() ./../../base/task_scheduler/scheduler_worker.cc:85:41
    #15 0x582ff73 in base::(anonymous namespace)::ThreadFunc(void*) ./../../base/threading/platform_thread_posix.cc:76:13
    #16 0x7fd912dd8183 in start_thread /build/eglibc-ripdx6/eglibc-2.19/nptl/pthread_create.c:312:0
    #17 0x7fd90d1c103c in clone /build/eglibc-ripdx6/eglibc-2.19/misc/../sysdeps/unix/sysv/linux/x86_64/clone.S:111:0

BrowserTestBase received signal: Terminated. Backtrace:
#0 0x000005795d4c base::debug::StackTrace::StackTrace()
#1 0x00000593cd83 content::(anonymous namespace)::DumpStackTraceSignalHandler()
#2 0x7feb7637ecb0 <unknown>
#3 0x7feb76438c9d __poll
#4 0x7feb7b536fe4 <unknown>
#5 0x7feb7b5370ec g_main_context_iteration
#6 0x0000057c95d6 base::MessagePumpGlib::Run()
#7 0x0000057c34e1 base::MessageLoop::Run()
#8 0x0000057f8800 base::RunLoop::Run()
#9 0x0000034ec308 dom_distiller::DomDistillerJsTest_RunJsTests_Test::RunTestOnMainThread()
#10 0x00000593c894 content::BrowserTestBase::ProxyRunTestOnMainThreadLoop()
#11 0x00000593d6c1 _ZN4base8internal7InvokerINS0_9BindStateIMN7content15BrowserTestBaseEFvvEJNS0_17UnretainedWrapperIS4_EEEEEFvvEE7RunImplIRKS6_RKNSt3__15tupleIJS8_EEEJLm0EEEEvOT_OT0_NSF_16integer_sequenceImJXspT1_EEEE
#12 0x0000058e7822 content::ShellBrowserMainParts::PreMainMessageLoopRun()
#13 0x0000042ca69b content::BrowserMainLoop::PreMainMessageLoopRun()
#14 0x0000042ce4d1 _ZN4base8internal7InvokerINS0_9BindStateIMN7content15BrowserMainLoopEFivEJNS0_17UnretainedWrapperIS4_EEEEEFivEE7RunImplIRKS6_RKNSt3__15tupleIJS8_EEEJLm0EEEEiOT_OT0_NSF_16integer_sequenceImJXspT1_EEEE
[0302/175330.609695:ERROR:kill_posix.cc(84)] Unable to terminate process group 5895: No such process (3)
[0302/175401.133894:ERROR:kill_posix.cc(84)] Unable to terminate process group 5958: No such process (3)
#15 0x0000048ea659 content::StartupTaskRunner::RunAllTasksNow()
#16 0x0000042c905e content::BrowserMainLoop::CreateStartupTasks()
#17 0x0000042cf33a content::BrowserMainRunnerImpl::Initialize()
#18 0x000005926278 ShellBrowserMain()
#19 0x000005924927 content::ShellMainDelegate::RunProcess()
#20 0x0000056c8f43 content::RunNamedProcessTypeMain()
#21 0x0000056ca672 content::ContentMainRunnerImpl::Run()
#22 0x0000070917bc service_manager::Main()
#23 0x0000056c1a44 content::ContentMain()
#24 0x00000593c444 content::BrowserTestBase::SetUp()
#25 0x0000058cff7f content::ContentBrowserTest::SetUp()
#26 0x0000035a69bd testing::Test::Run()
#27 0x0000035a70ee testing::TestInfo::Run()
#28 0x0000035a7862 testing::TestCase::Run()
#29 0x0000035ac2e3 testing::internal::UnitTestImpl::RunAllTests()
#30 0x0000035abf7a testing::UnitTest::Run()
#31 0x000005887457 base::TestSuite::Run()
#32 0x0000059237dc content::ContentTestLauncherDelegate::RunTestSuite()
#33 0x00000594870e content::LaunchTests()
#34 0x000005923749 main
#35 0x7feb76369f45 __libc_start_main
#36 0x00000339102a _start