[Webkit-unassigned] [Bug 80811] New: [Chromium] CCLayerTreeHost runMultiThread is flaky

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=80811

           Summary: [Chromium] CCLayerTreeHost runMultiThread is flaky
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Misc.
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: ukai at chromium.org
                CC: jamesr at chromium.org, vollick at chromium.org


CCLayerTreeHost's runMultiThread is flaky (on WebKit Win (dbg))

http://build.chromium.org/p/chromium.webkit/builders/Webkit%20Win%20%28dbg%29%281%29/builds/10777/steps/webkit_unit_tests/logs/stdio
[ RUN      ] CCLayerTreeHostTestSetNeedsRedraw.runMultiThread
.\tests\CCLayerTreeHostTest.cpp(789): error: Value of: m_numDraws
  Actual: 1
Expected: 0
.\tests\CCLayerTreeHostTest.cpp(779): error: Value of: impl->sourceFrameNumber()
  Actual: 1
Expected: 0
.\tests\CCLayerTreeHostTest.cpp(796): error: Value of: m_numCommits
  Actual: 2
Expected: 1
[  FAILED  ] CCLayerTreeHostTestSetNeedsRedraw.runMultiThread (16 ms)
[----------] 1 test from CCLayerTreeHostTestSetNeedsRedraw (16 ms total)

[ RUN      ] CCLayerTreeHostTestAtomicCommit.runMultiThread
SHOULD NEVER BE REACHED
Backtrace:
    WebKit::WebNode::hasChildNodes [0x10210FED+2030019]
    WebKit::WebNode::hasChildNodes [0x101F9D96+1935212]
    WebKit::WebNode::hasChildNodes [0x110F36B1+17637511]
    WebKit::WebNode::hasChildNodes [0x1103B417+16883181]
    WebKit::WebNode::hasChildNodes [0x1103ABB7+16881037]
    WebKit::WebNode::hasChildNodes [0x110F31B6+17636236]
    WebKit::WebNode::hasChildNodes [0x110F7740+17654038]
    WebKit::WebNode::hasChildNodes [0x100A77E5+549307]
    webkit::npapi::PluginGroup::InitFrom [0x0210219B+860131]
    webkit::npapi::PluginGroup::InitFrom [0x0210214A+860050]
    webkit::npapi::PluginGroup::InitFrom [0x021020AA+859890]
    base::win::EnumVariant::QueryInterface [0x0140C41F+322226]
    base::win::EnumVariant::QueryInterface [0x0141419F+354354]
    base::win::EnumVariant::QueryInterface [0x01414423+354998]
    base::win::EnumVariant::QueryInterface [0x014152C6+358745]
    base::win::EnumVariant::QueryInterface [0x01444386+551449]
    base::win::EnumVariant::QueryInterface [0x01413D8A+353309]
    base::win::EnumVariant::QueryInterface [0x01413ADE+352625]
    base::win::EnumVariant::QueryInterface [0x01412DC0+349267]
    base::win::EnumVariant::QueryInterface [0x015785A6+1813561]
    base::win::EnumVariant::QueryInterface [0x015787D4+1814119]
    base::win::EnumVariant::QueryInterface [0x0155F710+1711523]
    GetModuleFileNameA [0x7C80B729+442]


http://build.chromium.org/p/chromium.webkit/builders/Webkit%20Win%20%28dbg%29%281%29/builds/10778/steps/webkit_unit_tests/logs/stdio
[ RUN      ] CCLayerTreeHostTestSetVisible.runMultiThread
.\tests\CCLayerTreeHostTest.cpp(1193): error: Value of: m_numDraws
  Actual: 2
Expected: 1
[  FAILED  ] CCLayerTreeHostTestSetVisible.runMultiThread (110 ms)
[----------] 1 test from CCLayerTreeHostTestSetVisible (110 ms total)

[----------] 1 test from CCLayerTreeHostTestOpacityChange
[ RUN      ] CCLayerTreeHostTestOpacityChange.runMultiThread
ASSERTION FAILED: currentThread() == m_targetThread->threadID()
Backtrace:
    WebKit::WebNode::hasChildNodes [0x101FC85A+1946160]
    WebKit::WebNode::hasChildNodes [0x10200214+1960938]
    WebKit::WebNode::hasChildNodes [0x100A77E5+549307]
    webkit::npapi::PluginGroup::InitFrom [0x0210219B+860131]
    webkit::npapi::PluginGroup::InitFrom [0x0210214A+860050]
    webkit::npapi::PluginGroup::InitFrom [0x021020AA+859890]
    base::win::EnumVariant::QueryInterface [0x0140C41F+322226]
    base::win::EnumVariant::QueryInterface [0x0141419F+354354]
    base::win::EnumVariant::QueryInterface [0x01414423+354998]
    base::win::EnumVariant::QueryInterface [0x014152C6+358745]
    base::win::EnumVariant::QueryInterface [0x01436DE4+496759]
    base::win::EnumVariant::QueryInterface [0x01436412+494245]
    base::win::EnumVariant::QueryInterface [0x0140EE7C+333071]
    base::win::EnumVariant::QueryInterface [0x01413D8A+353309]
    base::win::EnumVariant::QueryInterface [0x01413ADE+352625]
    base::win::EnumVariant::QueryInterface [0x01412DC0+349267]
    webkit::npapi::PluginGroup::InitFrom [0x020FD6BD+840965]
    WebKit::WebNode::hasChildNodes [0x101FCE14+1947626]
    WebKit::WebNode::hasChildNodes [0x101FD920+1950454]
    WebKit::WebNode::hasChildNodes [0x11688EEC+23492802]
    WebKit::WebNode::hasChildNodes [0x1166FCBE+23389844]
    WebKit::WebNode::hasChildNodes [0x116707ED+23392707]
    WebKit::WebNode::hasChildNodes [0x11670FCF+23394725]
    WebKit::WebNode::hasChildNodes [0x11677AD9+23422127]
    WebKit::WebNode::hasChildNodes [0x11689AE4+23495866]
    WebKit::WebNode::hasChildNodes [0x116762D0+23415974]
    WebKit::WebNode::hasChildNodes [0x116A2658+23597102]
    WebKit::WebNode::hasChildNodes [0x1057F42D+5627395]
    (No symbol) [0x004010A3]
    (No symbol) [0x00459488]
    (No symbol) [0x004592CF]
    RegisterWaitForInputIdle [0x7C817077+73]

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