Windows x64 GPU FYI bots webgl_conformance_tests (various types) are very flaky |
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Issue descriptionThis seemed to have started around Mar 08 05:00 on the bot time schedule. Currently looking at the recent builds: https://build.chromium.org/p/chromium.gpu.fyi/builders/Win7%20x64%20Release%20%28NVIDIA%29?numbuilds=200 https://build.chromium.org/p/chromium.gpu.fyi/builders/Win7%20x64%20Debug%20%28NVIDIA%29?numbuilds=200 I see failures in webgl2_conformance_tests, webgl_conformance_d3d9_tests, and webgl_conformance_tests that are sporadic and flaky, each with different failures. This seemed to have started around this build: https://build.chromium.org/p/chromium.gpu.fyi/builders/Win7%20x64%20Release%20%28NVIDIA%29/builds/1700 https://build.chromium.org/p/chromium.gpu.fyi/builders/Win7%20x64%20Debug%20%28NVIDIA%29/builds/786 Making the regression range somewhere around a210fc29470a85435f76a1af9e6990249f063a38, but it's hard to confirm because of the flakiness. Also the relevant ANGLE regression range starts around https://chromium.googlesource.com/angle/angle.git/+/2b3cc8151ddb1e5f2a7ff71aade. Note that the webgl_conformance in x64 I don't believe are tested on the waterfall anywhere except the GPU FYI bots and the ANGLE trybots, and these flakes are also plaguing the ANGLE trybots, making our CQ life difficult. I'll be away starting Thursday for quite some time, but this issue is very important and cannot be ignored. It's unclear to me if this issue is with ANGLE or was with a Chromium CL that landed. Any help here is highly appreciated.
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Mar 10 2016
Yeah.. there haven't been any failures for the last 30 builds so I think it's safe to close this for now. Thanks for following up.
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Mar 12 2016
May have spoken too soon, the Release flakiness is fixed but the Debug flakiness remains. https://build.chromium.org/p/chromium.gpu.fyi/builders/Win7%20x64%20Debug%20%28NVIDIA%29?numbuilds=200
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Mar 14 2016
It looks like this cleared up and may have been a bad V8 roll. Last WebGL 1.0 conformance test failure from that bot: [ RUN ] WebglConformance.conformance_glsl_misc_shaders_with_name_conflicts # # Fatal error in , line 0 # unreachable code # Backtrace: (No symbol) [0x0000000000000000] v8::Int32Array::CheckCast [0x00000000140D1C34+8176799] v8::Int32Array::CheckCast [0x00000000140CF7AB+8167446] v8::Int32Array::CheckCast [0x000000001399AFC6+612401] v8::Int32Array::CheckCast [0x000000001399AE77+612066] v8::Int32Array::CheckCast [0x0000000013DF3E6C+5170903] v8::Int32Array::CheckCast [0x0000000013DEDAF7+5145442] v8::Int32Array::CheckCast [0x0000000013E24620+5369483] policy::internal::PropertyNode::operator= [0x000000000DE4FDFE+128489472] policy::internal::PropertyNode::operator= [0x000000000DE448EA+128443116] policy::internal::PropertyNode::operator= [0x000000000DE6C64A+128606284] policy::internal::PropertyNode::operator= [0x000000000DE72AC8+128632010] policy::internal::PropertyNode::operator= [0x000000000DDB9C88+127874698] policy::internal::PropertyNode::operator= [0x000000000DDECA93+128083093] IPC::ParamTraits<IndexedDBMsg_BlobOrFileInfo>::operator= [0x000000001CF361F8+43692891] blink::WebLocalFrameImpl::requestRunTask [0x0000000025D8642D+441022] blink::StringCache::v8ExternalStringSlow [0x000000002C9C5994+10964] blink::StringCache::v8ExternalStringSlow [0x000000002C9C500E+8526] blink::WindowProxyManager::clearForNavigation [0x000000002C9CCA40+64] blink::ScriptController::clearWindowProxy [0x000000002C9113B9+73] blink::LocalFrame::setDOMWindow [0x000000002D618425+165] blink::DocumentLoader::createWriterFor [0x000000002D7F7F6C+268] blink::DocumentLoader::ensureWriter [0x000000002D7F8B45+869] blink::DocumentLoader::commitData [0x000000002D7F7BCB+171] blink::DocumentLoader::processData [0x000000002D7FAABF+191] blink::DocumentLoader::dataReceived [0x000000002D7F8281+561] blink::RawResource::appendData [0x000000002D53B515+181] blink::ResourceLoader::didReceiveData [0x000000002D56DA96+406] IPC::ParamTraits<IndexedDBMsg_BlobOrFileInfo>::operator= [0x000000001C4C49FC+32742239] IPC::ParamTraits<IndexedDBMsg_BlobOrFileInfo>::operator= [0x000000001C4C4B57+32742586] IPC::ParamTraits<IndexedDBMsg_BlobOrFileInfo>::operator= [0x000000001C40DC91+31993332] IPC::ParamTraits<IndexedDBMsg_BlobOrFileInfo>::operator= [0x000000001C401B1D+31943808] IPC::ParamTraits<IndexedDBMsg_BlobOrFileInfo>::operator= [0x000000001C401242+31941541] IPC::ParamTraits<IndexedDBMsg_BlobOrFileInfo>::operator= [0x000000001C4015A1+31942404] IPC::ParamTraits<IndexedDBMsg_BlobOrFileInfo>::operator= [0x000000001C400E19+31940476] IPC::ParamTraits<IndexedDBMsg_BlobOrFileInfo>::operator= [0x000000001C40C3C5+31986984] IPC::ParamTraits<IndexedDBMsg_BlobOrFileInfo>::operator= [0x000000001C40D4B9+31991324] IPC::ParamTraits<IndexedDBMsg_BlobOrFileInfo>::operator= [0x000000001C41A67F+32045026] IPC::ParamTraits<IndexedDBMsg_BlobOrFileInfo>::operator= [0x000000001C41E102+32060005] scheduler::RendererSchedulerImpl::AddWebViewScheduler [0x000000002309194D+504519] scheduler::RendererSchedulerImpl::AddWebViewScheduler [0x000000002309069E+499736] scheduler::RendererSchedulerImpl::AddWebViewScheduler [0x000000002309058A+499460] scheduler::RendererSchedulerImpl::AddWebViewScheduler [0x0000000023091097+502289] base::FieldTrial::SetForced [0x00000000004F1FDD+389639] base::FieldTrial::SetForced [0x00000000005343C5+660975] scheduler::RendererSchedulerImpl::AddWebViewScheduler [0x0000000023050481+237051] scheduler::RendererSchedulerImpl::AddWebViewScheduler [0x000000002304E575+229103] scheduler::RendererSchedulerImpl::AddWebViewScheduler [0x00000000230420CE+178760] scheduler::RendererSchedulerImpl::AddWebViewScheduler [0x0000000023041FDD+178519] scheduler::RendererSchedulerImpl::AddWebViewScheduler [0x0000000023050FFF+239993] base::FieldTrial::SetForced [0x00000000004F1FDD+389639] base::FieldTrial::SetForced [0x00000000005343C5+660975] base::FieldTrial::SetForced [0x00000000005D91E8+1336338] base::FieldTrial::SetForced [0x00000000005D6141+1323883] base::FieldTrial::SetForced [0x00000000005D6AA4+1326286] base::FieldTrial::SetForced [0x00000000005E0F20+1368394] base::FieldTrial::SetForced [0x00000000005D8DB3+1335261] base::FieldTrial::SetForced [0x00000000006A3DEB+2166805] base::FieldTrial::SetForced [0x00000000005D8C15+1334847] IPC::ParamTraits<IndexedDBMsg_BlobOrFileInfo>::operator= [0x000000001D027F22+44683397] IPC::ParamTraits<IndexedDBMsg_BlobOrFileInfo>::operator= [0x000000001A750E15+1859448] IPC::ParamTraits<IndexedDBMsg_BlobOrFileInfo>::operator= [0x000000001A750C20+1858947] [2624:1084:0312/103500:ERROR:ipc_channel_win.cc(512)] pipe error: 232 Marking WontFix (not reproducible any more). |
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Comment 1 by kbr@chromium.org
, Mar 10 2016