155526 2016-03-15 18:22:41 -0700 REGRESSION: JSC test stress/materialize-past-butterfly-allocation.js.ftl-no-cjit-small-pool failing 2016-04-08 14:15:06 -0700 1 1 1 Unclassified WebKit JavaScriptCore WebKit Nightly Build Mac Unspecified NEW P2 Normal --- 1 ryanhaddad webkit-unassigned ap fpizlo ggaren mark.lam oldest_to_newest 1175230 0 ryanhaddad 2016-03-15 18:22:41 -0700 JSC stress test failure: stress/materialize-past-butterfly-allocation.js.ftl-no-cjit-small-pool Encountered this failure on El Capitan and Yosemite Debug JSC tests. <https://build.webkit.org/builders/Apple%20Yosemite%20Debug%20JSC%20%28Tests%29/builds/5295> <https://build.webkit.org/builders/Apple%20El%20Capitan%20Debug%20JSC%20%28Tests%29/builds/2125> stress/materialize-past-butterfly-allocation.js.ftl-no-cjit-small-pool: Timed out after 339.000000 seconds! stress/materialize-past-butterfly-allocation.js.ftl-no-cjit-small-pool: 1 0x10afd8a40 WTFCrash stress/materialize-past-butterfly-allocation.js.ftl-no-cjit-small-pool: 2 0x109ede0aa timeoutThreadMain(void*) stress/materialize-past-butterfly-allocation.js.ftl-no-cjit-small-pool: 3 0x10b043c39 WTF::createThread(void (*)(void*), void*, char const*)::$_0::operator()() const stress/materialize-past-butterfly-allocation.js.ftl-no-cjit-small-pool: 4 0x10b043c0d void std::__1::__invoke_void_return_wrapper<void>::__call<WTF::createThread(void (*)(void*), void*, char const*)::$_0&>(WTF::createThread(void (*)(void*), void*, char const*)::$_0&&&) stress/materialize-past-butterfly-allocation.js.ftl-no-cjit-small-pool: 5 0x10b043bac std::__1::__function::__func<WTF::createThread(void (*)(void*), void*, char const*)::$_0, std::__1::allocator<WTF::createThread(void (*)(void*), void*, char const*)::$_0>, void ()>::operator()() stress/materialize-past-butterfly-allocation.js.ftl-no-cjit-small-pool: 6 0x10a8e1eda std::__1::function<void ()>::operator()() const stress/materialize-past-butterfly-allocation.js.ftl-no-cjit-small-pool: 7 0x10b04290e WTF::threadEntryPoint(void*) stress/materialize-past-butterfly-allocation.js.ftl-no-cjit-small-pool: 8 0x10b0441a1 WTF::wtfThreadEntryPoint(void*) stress/materialize-past-butterfly-allocation.js.ftl-no-cjit-small-pool: 9 0x7fff9aefac13 _pthread_body stress/materialize-past-butterfly-allocation.js.ftl-no-cjit-small-pool: 10 0x7fff9aefab90 _pthread_body stress/materialize-past-butterfly-allocation.js.ftl-no-cjit-small-pool: 11 0x7fff9aef8375 thread_start stress/materialize-past-butterfly-allocation.js.ftl-no-cjit-small-pool: test_script_15145: line 2: 39785 Segmentation fault: 11 ( "$@" ../../.vm/JavaScriptCore.framework/Resources/jsc --useFTLJIT\=false --useFunctionDotArguments\=true --jitMemoryReservationSize\=50000 --useFTLJIT\=true --useConcurrentJIT\=false --thresholdForJITAfterWarmUp\=100 materialize-past-butterfly-allocation.js ) stress/materialize-past-butterfly-allocation.js.ftl-no-cjit-small-pool: ERROR: Unexpected exit code: 139 FAIL: stress/materialize-past-butterfly-allocation.js.ftl-no-cjit-small-pool 1175234 1 ryanhaddad 2016-03-15 18:25:43 -0700 Last passing run was r198211, this test has been failing since then. 1175236 2 fpizlo 2016-03-15 18:30:26 -0700 I think that this is just a super inefficient test. I don't think it tests anything super important. I'm OK with simply deleting this test. 1175775 3 ryanhaddad 2016-03-17 10:44:53 -0700 (In reply to comment #2) > I think that this is just a super inefficient test. I don't think it tests > anything super important. I'm OK with simply deleting this test. Will you be able to take care of this? 1177388 4 ap 2016-03-23 10:46:53 -0700 Interestingly, this test now fails every time on debug: <https://build.webkit.org/builders/Apple%20Yosemite%20Debug%20JSC%20(Tests)?numbuilds=50>. Something must be getting progressively slower. FWIW, the test was added in http://trac.webkit.org/changeset/181817 1182312 5 ap 2016-04-08 14:15:06 -0700 Did this stop happening on its own?