Reduced with m-c `20200520-855249e545c3` Test case requires pref `gfx.webrender.all=true` Assertion failure: false (MOZ_ASSERT_UNREACHABLE: Paint() is not implemented!), at layout/painting/nsDisplayList.h:3232 ```c 0|0|libxul.so|nsPaintedDisplayItem::Paint(nsDisplayListBuilder*, gfxContext*)|hg:hg.mozilla.org/mozilla-central:layout/painting/nsDisplayList.h:855249e545c361516a65bcba8f5bc6b423e2d131|3232|0x29 0|1|libxul.so|mozilla::layers::PaintItemByDrawTarget(nsDisplayItem*, mozilla::gfx::DrawTarget*, mozilla::gfx::PointTyped<mozilla::LayoutDevicePixel, float> const&, mozilla::gfx::IntRectTyped<mozilla::gfx::UnknownUnits> const&, nsDisplayListBuilder*, RefPtr<mozilla::layers::BasicLayerManager> const&, mozilla::gfx::SizeTyped<mozilla::gfx::UnknownUnits, float> const&, mozilla::Maybe<mozilla::gfx::DeviceColor>&)|hg:hg.mozilla.org/mozilla-central:gfx/layers/wr/WebRenderCommandBuilder.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|2064|0x4e 0|2|libxul.so|mozilla::layers::WebRenderCommandBuilder::GenerateFallbackData(nsDisplayItem*, mozilla::wr::DisplayListBuilder&, mozilla::wr::IpcResourceUpdateQueue&, mozilla::layers::StackingContextHelper const&, nsDisplayListBuilder*, mozilla::gfx::RectTyped<mozilla::LayoutDevicePixel, float>&)|hg:hg.mozilla.org/mozilla-central:gfx/layers/wr/WebRenderCommandBuilder.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|2285|0x18 0|3|libxul.so|mozilla::layers::WebRenderCommandBuilder::PushItemAsImage(nsDisplayItem*, mozilla::wr::DisplayListBuilder&, mozilla::wr::IpcResourceUpdateQueue&, mozilla::layers::StackingContextHelper const&, nsDisplayListBuilder*)|hg:hg.mozilla.org/mozilla-central:gfx/layers/wr/WebRenderCommandBuilder.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|2592|0x10 0|4|libxul.so|mozilla::layers::WebRenderCommandBuilder::CreateWebRenderCommandsFromDisplayList(nsDisplayList*, nsDisplayItem*, nsDisplayListBuilder*, mozilla::layers::StackingContextHelper const&, mozilla::wr::DisplayListBuilder&, mozilla::wr::IpcResourceUpdateQueue&)|hg:hg.mozilla.org/mozilla-central:gfx/layers/wr/WebRenderCommandBuilder.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|1757|0x26 0|5|libxul.so|mozilla::layers::WebRenderCommandBuilder::BuildWebRenderCommands(mozilla::wr::DisplayListBuilder&, mozilla::wr::IpcResourceUpdateQueue&, nsDisplayList*, nsDisplayListBuilder*, mozilla::layers::WebRenderScrollData&, WrFiltersHolder&&)|hg:hg.mozilla.org/mozilla-central:gfx/layers/wr/WebRenderCommandBuilder.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|1578|0x24 0|6|libxul.so|mozilla::layers::WebRenderLayerManager::EndTransactionWithoutLayer(nsDisplayList*, nsDisplayListBuilder*, WrFiltersHolder&&, mozilla::layers::WebRenderBackgroundData*)|hg:hg.mozilla.org/mozilla-central:gfx/layers/wr/WebRenderLayerManager.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|322|0x26 0|7|libxul.so|nsDisplayList::PaintRoot(nsDisplayListBuilder*, gfxContext*, unsigned int)|hg:hg.mozilla.org/mozilla-central:layout/painting/nsDisplayList.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|2382|0xb 0|8|libxul.so|nsLayoutUtils::PaintFrame(gfxContext*, nsIFrame*, nsRegion const&, unsigned int, nsDisplayListBuilderMode, nsLayoutUtils::PaintFrameFlags)|hg:hg.mozilla.org/mozilla-central:layout/base/nsLayoutUtils.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|4142|0x1b 0|9|libxul.so|mozilla::PresShell::Paint(nsView*, nsRegion const&, mozilla::PaintFlags)|hg:hg.mozilla.org/mozilla-central:layout/base/PresShell.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|6264|0x1d 0|10|libxul.so|nsViewManager::ProcessPendingUpdatesPaint(nsIWidget*)|hg:hg.mozilla.org/mozilla-central:view/nsViewManager.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|460|0x13 0|11|libxul.so|nsViewManager::ProcessPendingUpdatesForView(nsView*, bool)|hg:hg.mozilla.org/mozilla-central:view/nsViewManager.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|395|0x13 0|12|libxul.so|nsViewManager::ProcessPendingUpdates()|hg:hg.mozilla.org/mozilla-central:view/nsViewManager.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|1018|0x11 0|13|libxul.so|nsRefreshDriver::Tick(mozilla::layers::BaseTransactionId<mozilla::VsyncIdType>, mozilla::TimeStamp)|hg:hg.mozilla.org/mozilla-central:layout/base/nsRefreshDriver.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|2203|0xd 0|14|libxul.so|mozilla::RefreshDriverTimer::TickRefreshDrivers(mozilla::layers::BaseTransactionId<mozilla::VsyncIdType>, mozilla::TimeStamp, nsTArray<RefPtr<nsRefreshDriver> >&)|hg:hg.mozilla.org/mozilla-central:layout/base/nsRefreshDriver.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|373|0xb 0|15|libxul.so|mozilla::RefreshDriverTimer::Tick(mozilla::layers::BaseTransactionId<mozilla::VsyncIdType>, mozilla::TimeStamp)|hg:hg.mozilla.org/mozilla-central:layout/base/nsRefreshDriver.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|367|0x12 0|16|libxul.so|mozilla::VsyncRefreshDriverTimer::RefreshDriverVsyncObserver::TickRefreshDriver(mozilla::layers::BaseTransactionId<mozilla::VsyncIdType>, mozilla::TimeStamp)|hg:hg.mozilla.org/mozilla-central:layout/base/nsRefreshDriver.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|745|0x17 0|17|libxul.so|mozilla::VsyncRefreshDriverTimer::RefreshDriverVsyncObserver::NotifyVsync(mozilla::VsyncEvent const&)|hg:hg.mozilla.org/mozilla-central:layout/base/nsRefreshDriver.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|644|0xf 0|18|libxul.so|mozilla::layout::VsyncChild::RecvNotify(mozilla::VsyncEvent const&)|hg:hg.mozilla.org/mozilla-central:layout/ipc/VsyncChild.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|55|0x13 0|19|libxul.so|mozilla::layout::PVsyncChild::OnMessageReceived(IPC::Message const&)|s3:gecko-generated-sources:27495909b8eb16a2f6224f9af7a0c052f58ac4a1f37ddd12d240b8b6a62795d131a51db23214bbde8ed61a33c6a97d727ae972f588d3f35141a1a66f3aadceeb/ipc/ipdl/PVsyncChild.cpp:|187|0x8 0|20|libxul.so|mozilla::ipc::PBackgroundChild::OnMessageReceived(IPC::Message const&)|s3:gecko-generated-sources:75695bbbf1ec93aad4718f03c359901f1be9ae34cba79945a5c42f3e8a2da054cc4ed1a56d373be9953080b82b366a6cd792a7b5323cd7f0d62bfa3c3b040098/ipc/ipdl/PBackgroundChild.cpp:|6083|0x24 0|21|libxul.so|mozilla::ipc::MessageChannel::DispatchAsyncMessage(mozilla::ipc::ActorLifecycleProxy*, IPC::Message const&)|hg:hg.mozilla.org/mozilla-central:ipc/glue/MessageChannel.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|2186|0x1c 0|22|libxul.so|mozilla::ipc::MessageChannel::DispatchMessage(IPC::Message&&)|hg:hg.mozilla.org/mozilla-central:ipc/glue/MessageChannel.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|2110|0x18 0|23|libxul.so|mozilla::ipc::MessageChannel::RunMessage(mozilla::ipc::MessageChannel::MessageTask&)|hg:hg.mozilla.org/mozilla-central:ipc/glue/MessageChannel.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|1958|0xb 0|24|libxul.so|mozilla::ipc::MessageChannel::MessageTask::Run()|hg:hg.mozilla.org/mozilla-central:ipc/glue/MessageChannel.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|1989|0x12 0|25|libxul.so|nsThread::ProcessNextEvent(bool, bool*)|hg:hg.mozilla.org/mozilla-central:xpcom/threads/nsThread.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|1211|0x11 0|26|libxul.so|NS_ProcessNextEvent(nsIThread*, bool)|hg:hg.mozilla.org/mozilla-central:xpcom/threads/nsThreadUtils.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|501|0xc 0|27|libxul.so|mozilla::ipc::MessagePump::Run(base::MessagePump::Delegate*)|hg:hg.mozilla.org/mozilla-central:ipc/glue/MessagePump.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|87|0x7 0|28|libxul.so|MessageLoop::RunInternal()|hg:hg.mozilla.org/mozilla-central:ipc/chromium/src/base/message_loop.cc:855249e545c361516a65bcba8f5bc6b423e2d131|315|0x17 0|29|libxul.so|MessageLoop::Run()|hg:hg.mozilla.org/mozilla-central:ipc/chromium/src/base/message_loop.cc:855249e545c361516a65bcba8f5bc6b423e2d131|290|0x8 0|30|libxul.so|nsBaseAppShell::Run()|hg:hg.mozilla.org/mozilla-central:widget/nsBaseAppShell.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|137|0xd 0|31|libxul.so|XRE_RunAppShell()|hg:hg.mozilla.org/mozilla-central:toolkit/xre/nsEmbedFunctions.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|909|0xe 0|32|libxul.so|mozilla::ipc::MessagePumpForChildProcess::Run(base::MessagePump::Delegate*)|hg:hg.mozilla.org/mozilla-central:ipc/glue/MessagePump.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|237|0x5 0|33|libxul.so|MessageLoop::RunInternal()|hg:hg.mozilla.org/mozilla-central:ipc/chromium/src/base/message_loop.cc:855249e545c361516a65bcba8f5bc6b423e2d131|315|0x17 0|34|libxul.so|MessageLoop::Run()|hg:hg.mozilla.org/mozilla-central:ipc/chromium/src/base/message_loop.cc:855249e545c361516a65bcba8f5bc6b423e2d131|290|0x8 0|35|libxul.so|XRE_InitChildProcess(int, char**, XREChildData const*)|hg:hg.mozilla.org/mozilla-central:toolkit/xre/nsEmbedFunctions.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|740|0x5 0|36|firefox-bin|content_process_main(mozilla::Bootstrap*, int, char**)|hg:hg.mozilla.org/mozilla-central:ipc/contentproc/plugin-container.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|56|0x11 0|37|firefox-bin|main|hg:hg.mozilla.org/mozilla-central:browser/app/nsBrowserApp.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|303|0x20 0|38|libc.so.6|__libc_start_main|/build/glibc-LK5gWL/glibc-2.23/csu/../csu/libc-start.c|291|0x1a 0|39|firefox-bin|_start|||0x29 ```
Bug 1639975 Comment 0 Edit History
Note: The actual edited comment in the bug view page will always show the original commenter’s name and original timestamp.
Reduced with m-c `20200520-855249e545c3` and it seems to also require `--enable-fuzzing` (not sure why) Test case requires pref `gfx.webrender.all=true` Assertion failure: false (MOZ_ASSERT_UNREACHABLE: Paint() is not implemented!), at layout/painting/nsDisplayList.h:3232 ```c 0|0|libxul.so|nsPaintedDisplayItem::Paint(nsDisplayListBuilder*, gfxContext*)|hg:hg.mozilla.org/mozilla-central:layout/painting/nsDisplayList.h:855249e545c361516a65bcba8f5bc6b423e2d131|3232|0x29 0|1|libxul.so|mozilla::layers::PaintItemByDrawTarget(nsDisplayItem*, mozilla::gfx::DrawTarget*, mozilla::gfx::PointTyped<mozilla::LayoutDevicePixel, float> const&, mozilla::gfx::IntRectTyped<mozilla::gfx::UnknownUnits> const&, nsDisplayListBuilder*, RefPtr<mozilla::layers::BasicLayerManager> const&, mozilla::gfx::SizeTyped<mozilla::gfx::UnknownUnits, float> const&, mozilla::Maybe<mozilla::gfx::DeviceColor>&)|hg:hg.mozilla.org/mozilla-central:gfx/layers/wr/WebRenderCommandBuilder.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|2064|0x4e 0|2|libxul.so|mozilla::layers::WebRenderCommandBuilder::GenerateFallbackData(nsDisplayItem*, mozilla::wr::DisplayListBuilder&, mozilla::wr::IpcResourceUpdateQueue&, mozilla::layers::StackingContextHelper const&, nsDisplayListBuilder*, mozilla::gfx::RectTyped<mozilla::LayoutDevicePixel, float>&)|hg:hg.mozilla.org/mozilla-central:gfx/layers/wr/WebRenderCommandBuilder.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|2285|0x18 0|3|libxul.so|mozilla::layers::WebRenderCommandBuilder::PushItemAsImage(nsDisplayItem*, mozilla::wr::DisplayListBuilder&, mozilla::wr::IpcResourceUpdateQueue&, mozilla::layers::StackingContextHelper const&, nsDisplayListBuilder*)|hg:hg.mozilla.org/mozilla-central:gfx/layers/wr/WebRenderCommandBuilder.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|2592|0x10 0|4|libxul.so|mozilla::layers::WebRenderCommandBuilder::CreateWebRenderCommandsFromDisplayList(nsDisplayList*, nsDisplayItem*, nsDisplayListBuilder*, mozilla::layers::StackingContextHelper const&, mozilla::wr::DisplayListBuilder&, mozilla::wr::IpcResourceUpdateQueue&)|hg:hg.mozilla.org/mozilla-central:gfx/layers/wr/WebRenderCommandBuilder.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|1757|0x26 0|5|libxul.so|mozilla::layers::WebRenderCommandBuilder::BuildWebRenderCommands(mozilla::wr::DisplayListBuilder&, mozilla::wr::IpcResourceUpdateQueue&, nsDisplayList*, nsDisplayListBuilder*, mozilla::layers::WebRenderScrollData&, WrFiltersHolder&&)|hg:hg.mozilla.org/mozilla-central:gfx/layers/wr/WebRenderCommandBuilder.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|1578|0x24 0|6|libxul.so|mozilla::layers::WebRenderLayerManager::EndTransactionWithoutLayer(nsDisplayList*, nsDisplayListBuilder*, WrFiltersHolder&&, mozilla::layers::WebRenderBackgroundData*)|hg:hg.mozilla.org/mozilla-central:gfx/layers/wr/WebRenderLayerManager.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|322|0x26 0|7|libxul.so|nsDisplayList::PaintRoot(nsDisplayListBuilder*, gfxContext*, unsigned int)|hg:hg.mozilla.org/mozilla-central:layout/painting/nsDisplayList.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|2382|0xb 0|8|libxul.so|nsLayoutUtils::PaintFrame(gfxContext*, nsIFrame*, nsRegion const&, unsigned int, nsDisplayListBuilderMode, nsLayoutUtils::PaintFrameFlags)|hg:hg.mozilla.org/mozilla-central:layout/base/nsLayoutUtils.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|4142|0x1b 0|9|libxul.so|mozilla::PresShell::Paint(nsView*, nsRegion const&, mozilla::PaintFlags)|hg:hg.mozilla.org/mozilla-central:layout/base/PresShell.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|6264|0x1d 0|10|libxul.so|nsViewManager::ProcessPendingUpdatesPaint(nsIWidget*)|hg:hg.mozilla.org/mozilla-central:view/nsViewManager.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|460|0x13 0|11|libxul.so|nsViewManager::ProcessPendingUpdatesForView(nsView*, bool)|hg:hg.mozilla.org/mozilla-central:view/nsViewManager.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|395|0x13 0|12|libxul.so|nsViewManager::ProcessPendingUpdates()|hg:hg.mozilla.org/mozilla-central:view/nsViewManager.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|1018|0x11 0|13|libxul.so|nsRefreshDriver::Tick(mozilla::layers::BaseTransactionId<mozilla::VsyncIdType>, mozilla::TimeStamp)|hg:hg.mozilla.org/mozilla-central:layout/base/nsRefreshDriver.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|2203|0xd 0|14|libxul.so|mozilla::RefreshDriverTimer::TickRefreshDrivers(mozilla::layers::BaseTransactionId<mozilla::VsyncIdType>, mozilla::TimeStamp, nsTArray<RefPtr<nsRefreshDriver> >&)|hg:hg.mozilla.org/mozilla-central:layout/base/nsRefreshDriver.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|373|0xb 0|15|libxul.so|mozilla::RefreshDriverTimer::Tick(mozilla::layers::BaseTransactionId<mozilla::VsyncIdType>, mozilla::TimeStamp)|hg:hg.mozilla.org/mozilla-central:layout/base/nsRefreshDriver.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|367|0x12 0|16|libxul.so|mozilla::VsyncRefreshDriverTimer::RefreshDriverVsyncObserver::TickRefreshDriver(mozilla::layers::BaseTransactionId<mozilla::VsyncIdType>, mozilla::TimeStamp)|hg:hg.mozilla.org/mozilla-central:layout/base/nsRefreshDriver.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|745|0x17 0|17|libxul.so|mozilla::VsyncRefreshDriverTimer::RefreshDriverVsyncObserver::NotifyVsync(mozilla::VsyncEvent const&)|hg:hg.mozilla.org/mozilla-central:layout/base/nsRefreshDriver.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|644|0xf 0|18|libxul.so|mozilla::layout::VsyncChild::RecvNotify(mozilla::VsyncEvent const&)|hg:hg.mozilla.org/mozilla-central:layout/ipc/VsyncChild.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|55|0x13 0|19|libxul.so|mozilla::layout::PVsyncChild::OnMessageReceived(IPC::Message const&)|s3:gecko-generated-sources:27495909b8eb16a2f6224f9af7a0c052f58ac4a1f37ddd12d240b8b6a62795d131a51db23214bbde8ed61a33c6a97d727ae972f588d3f35141a1a66f3aadceeb/ipc/ipdl/PVsyncChild.cpp:|187|0x8 0|20|libxul.so|mozilla::ipc::PBackgroundChild::OnMessageReceived(IPC::Message const&)|s3:gecko-generated-sources:75695bbbf1ec93aad4718f03c359901f1be9ae34cba79945a5c42f3e8a2da054cc4ed1a56d373be9953080b82b366a6cd792a7b5323cd7f0d62bfa3c3b040098/ipc/ipdl/PBackgroundChild.cpp:|6083|0x24 0|21|libxul.so|mozilla::ipc::MessageChannel::DispatchAsyncMessage(mozilla::ipc::ActorLifecycleProxy*, IPC::Message const&)|hg:hg.mozilla.org/mozilla-central:ipc/glue/MessageChannel.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|2186|0x1c 0|22|libxul.so|mozilla::ipc::MessageChannel::DispatchMessage(IPC::Message&&)|hg:hg.mozilla.org/mozilla-central:ipc/glue/MessageChannel.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|2110|0x18 0|23|libxul.so|mozilla::ipc::MessageChannel::RunMessage(mozilla::ipc::MessageChannel::MessageTask&)|hg:hg.mozilla.org/mozilla-central:ipc/glue/MessageChannel.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|1958|0xb 0|24|libxul.so|mozilla::ipc::MessageChannel::MessageTask::Run()|hg:hg.mozilla.org/mozilla-central:ipc/glue/MessageChannel.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|1989|0x12 0|25|libxul.so|nsThread::ProcessNextEvent(bool, bool*)|hg:hg.mozilla.org/mozilla-central:xpcom/threads/nsThread.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|1211|0x11 0|26|libxul.so|NS_ProcessNextEvent(nsIThread*, bool)|hg:hg.mozilla.org/mozilla-central:xpcom/threads/nsThreadUtils.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|501|0xc 0|27|libxul.so|mozilla::ipc::MessagePump::Run(base::MessagePump::Delegate*)|hg:hg.mozilla.org/mozilla-central:ipc/glue/MessagePump.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|87|0x7 0|28|libxul.so|MessageLoop::RunInternal()|hg:hg.mozilla.org/mozilla-central:ipc/chromium/src/base/message_loop.cc:855249e545c361516a65bcba8f5bc6b423e2d131|315|0x17 0|29|libxul.so|MessageLoop::Run()|hg:hg.mozilla.org/mozilla-central:ipc/chromium/src/base/message_loop.cc:855249e545c361516a65bcba8f5bc6b423e2d131|290|0x8 0|30|libxul.so|nsBaseAppShell::Run()|hg:hg.mozilla.org/mozilla-central:widget/nsBaseAppShell.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|137|0xd 0|31|libxul.so|XRE_RunAppShell()|hg:hg.mozilla.org/mozilla-central:toolkit/xre/nsEmbedFunctions.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|909|0xe 0|32|libxul.so|mozilla::ipc::MessagePumpForChildProcess::Run(base::MessagePump::Delegate*)|hg:hg.mozilla.org/mozilla-central:ipc/glue/MessagePump.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|237|0x5 0|33|libxul.so|MessageLoop::RunInternal()|hg:hg.mozilla.org/mozilla-central:ipc/chromium/src/base/message_loop.cc:855249e545c361516a65bcba8f5bc6b423e2d131|315|0x17 0|34|libxul.so|MessageLoop::Run()|hg:hg.mozilla.org/mozilla-central:ipc/chromium/src/base/message_loop.cc:855249e545c361516a65bcba8f5bc6b423e2d131|290|0x8 0|35|libxul.so|XRE_InitChildProcess(int, char**, XREChildData const*)|hg:hg.mozilla.org/mozilla-central:toolkit/xre/nsEmbedFunctions.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|740|0x5 0|36|firefox-bin|content_process_main(mozilla::Bootstrap*, int, char**)|hg:hg.mozilla.org/mozilla-central:ipc/contentproc/plugin-container.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|56|0x11 0|37|firefox-bin|main|hg:hg.mozilla.org/mozilla-central:browser/app/nsBrowserApp.cpp:855249e545c361516a65bcba8f5bc6b423e2d131|303|0x20 0|38|libc.so.6|__libc_start_main|/build/glibc-LK5gWL/glibc-2.23/csu/../csu/libc-start.c|291|0x1a 0|39|firefox-bin|_start|||0x29 ```