Enabled Sandbox Segfault Determining it's Functioning - 4430

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Enabled Sandbox Segfault Determining it's Functioning - 4430

Postby leeroy » Wed Mar 31, 2021 6:28 pm

Hi We've enabled the sandbox based on https://bitbucket.org/chromiumembedded/ ... oxSetup.md

However trying to determine this is functional, tried to navigate to chrome://sandbox and immediately segfault.

We log the following message, not sure if it is relevant:
Code: Select all
 [0331/225553.114:ERROR:runtime_enabled_features.cc(2100)] RuntimeEnabledFeature not recognized: LayoutNGFieldset


With more verbose logging we see the following before the segfault:
Code: Select all
[0331/231741.414:VERBOSE1:dispatcher.cc(558)] Num tracked contexts: 0
[0331/231741.422:VERBOSE1:data_pipe_consumer_dispatcher.cc(512)] Data pipe consumer 14535350411558582693 notifying peer: 1203 bytes read. [control_port=3FDA24827CDB7360.97B850EA31ADC5]
[0331/231741.423:VERBOSE1:script_context.cc(280)] Destroyed context for extension
  extension id:
  effective extension id:
[0331/231741.423:VERBOSE1:script_context.cc(280)] Destroyed context for extension
  extension id:
  effective extension id:
[0331/231741.422:VERBOSE1:navigation_controller_impl.cc(1209)] Navigation finished at (smoothed) timestamp 13261706261422158
[0331/231741.424:VERBOSE1:histogram.cc(444)] Histogram: Blink.MainFrame.UpdateTime.PreFCP has bad minimum: 0
[0331/231741.424:VERBOSE1:histogram.cc(444)] Histogram: Blink.MainFrame.UpdateTime.PostFCP has bad minimum: 0
[0331/231741.424:VERBOSE1:histogram.cc(444)] Histogram: Blink.MainFrame.UpdateTime.AggregatedPreFCP has bad minimum: 0
[0331/231741.425:VERBOSE1:histogram.cc(444)] Histogram: Blink.CompositingAssignments.UpdateTime.PreFCP has bad minimum: 0
[0331/231741.425:VERBOSE1:histogram.cc(444)] Histogram: Blink.CompositingAssignments.UpdateTime.PostFCP has bad minimum: 0
[0331/231741.425:VERBOSE1:histogram.cc(444)] Histogram: Blink.CompositingAssignments.UpdateTime.AggregatedPreFCP has bad minimum: 0
[0331/231741.425:VERBOSE1:histogram.cc(444)] Histogram: Blink.CompositingCommit.UpdateTime.PreFCP has bad minimum: 0
[0331/231741.425:VERBOSE1:histogram.cc(444)] Histogram: Blink.CompositingCommit.UpdateTime.PostFCP has bad minimum: 0
[0331/231741.425:VERBOSE1:histogram.cc(444)] Histogram: Blink.CompositingCommit.UpdateTime.AggregatedPreFCP has bad minimum: 0
[0331/231741.425:VERBOSE1:histogram.cc(444)] Histogram: Blink.CompositingInputs.UpdateTime.PreFCP has bad minimum: 0
[0331/231741.425:VERBOSE1:histogram.cc(444)] Histogram: Blink.CompositingInputs.UpdateTime.PostFCP has bad minimum: 0
[0331/231741.425:VERBOSE1:histogram.cc(444)] Histogram: Blink.CompositingInputs.UpdateTime.AggregatedPreFCP has bad minimum: 0
[0331/231741.425:VERBOSE1:histogram.cc(444)] Histogram: Blink.ImplCompositorCommit.UpdateTime.PreFCP has bad minimum: 0
[0331/231741.425:VERBOSE1:histogram.cc(444)] Histogram: Blink.ImplCompositorCommit.UpdateTime.PostFCP has bad minimum: 0
[0331/231741.425:VERBOSE1:histogram.cc(444)] Histogram: Blink.ImplCompositorCommit.UpdateTime.AggregatedPreFCP has bad minimum: 0
[0331/231741.425:VERBOSE1:histogram.cc(444)] Histogram: Blink.IntersectionObservation.UpdateTime.PreFCP has bad minimum: 0
[0331/231741.425:VERBOSE1:histogram.cc(444)] Histogram: Blink.IntersectionObservation.UpdateTime.PostFCP has bad minimum: 0
[0331/231741.425:VERBOSE1:histogram.cc(444)] Histogram: Blink.IntersectionObservation.UpdateTime.AggregatedPreFCP has bad minimum: 0
[0331/231741.426:VERBOSE1:histogram.cc(444)] Histogram: Blink.Paint.UpdateTime.PreFCP has bad minimum: 0
[0331/231741.426:VERBOSE1:histogram.cc(444)] Histogram: Blink.Paint.UpdateTime.PostFCP has bad minimum: 0
[0331/231741.426:VERBOSE1:histogram.cc(444)] Histogram: Blink.Paint.UpdateTime.AggregatedPreFCP has bad minimum: 0
[0331/231741.426:VERBOSE1:histogram.cc(444)] Histogram: Blink.PrePaint.UpdateTime.PreFCP has bad minimum: 0
[0331/231741.426:VERBOSE1:histogram.cc(444)] Histogram: Blink.PrePaint.UpdateTime.PostFCP has bad minimum: 0
[0331/231741.426:VERBOSE1:histogram.cc(444)] Histogram: Blink.PrePaint.UpdateTime.AggregatedPreFCP has bad minimum: 0
[0331/231741.426:VERBOSE1:histogram.cc(444)] Histogram: Blink.Style.UpdateTime.PreFCP has bad minimum: 0
[0331/231741.427:VERBOSE1:histogram.cc(444)] Histogram: Blink.Style.UpdateTime.PostFCP has bad minimum: 0
[0331/231741.427:VERBOSE1:histogram.cc(444)] Histogram: Blink.Style.UpdateTime.AggregatedPreFCP has bad minimum: 0
[0331/231741.427:VERBOSE1:histogram.cc(444)] Histogram: Blink.Layout.UpdateTime.PreFCP has bad minimum: 0
[0331/231741.427:VERBOSE1:histogram.cc(444)] Histogram: Blink.Layout.UpdateTime.PostFCP has bad minimum: 0
[0331/231741.427:VERBOSE1:histogram.cc(444)] Histogram: Blink.Layout.UpdateTime.AggregatedPreFCP has bad minimum: 0
[0331/231741.427:VERBOSE1:media_stream_manager.cc(701)] RFAOSF::Core() [process_id=5, frame_id=4]
[0331/231741.427:VERBOSE1:histogram.cc(444)] Histogram: Blink.HandleInputEvents.UpdateTime.PreFCP has bad minimum: 0
[0331/231741.427:VERBOSE1:histogram.cc(444)] Histogram: Blink.HandleInputEvents.UpdateTime.PostFCP has bad minimum: 0
[0331/231741.428:VERBOSE1:histogram.cc(444)] Histogram: Blink.HandleInputEvents.UpdateTime.AggregatedPreFCP has bad minimum: 0
[0331/231741.428:VERBOSE1:histogram.cc(444)] Histogram: Blink.Animate.UpdateTime.PreFCP has bad minimum: 0
[0331/231741.428:VERBOSE1:histogram.cc(444)] Histogram: Blink.Animate.UpdateTime.PostFCP has bad minimum: 0
[0331/231741.428:VERBOSE1:histogram.cc(444)] Histogram: Blink.Animate.UpdateTime.AggregatedPreFCP has bad minimum: 0
[0331/231741.428:VERBOSE1:histogram.cc(444)] Histogram: Blink.WaitForCommit.UpdateTime.PreFCP has bad minimum: 0
[0331/231741.428:VERBOSE1:histogram.cc(444)] Histogram: Blink.WaitForCommit.UpdateTime.PostFCP has bad minimum: 0
[0331/231741.428:VERBOSE1:histogram.cc(444)] Histogram: Blink.WaitForCommit.UpdateTime.AggregatedPreFCP has bad minimum: 0
[0331/231741.428:VERBOSE1:histogram.cc(444)] Histogram: Blink.DisplayLockIntersectionObserver.UpdateTime.PreFCP has bad minimum: 0
[0331/231741.428:VERBOSE1:histogram.cc(444)] Histogram: Blink.DisplayLockIntersectionObserver.UpdateTime.PostFCP has bad minimum: 0
[0331/231741.428:VERBOSE1:histogram.cc(444)] Histogram: Blink.DisplayLockIntersectionObserver.UpdateTime.AggregatedPreFCP has bad minimum: 0
[0331/231741.428:VERBOSE1:histogram.cc(444)] Histogram: Blink.JavascriptIntersectionObserver.UpdateTime.PreFCP has bad minimum: 0
[0331/231741.425:INFO:cpu_info.cc(53)] Available number of cores: 8
[0331/231741.428:VERBOSE1:histogram.cc(444)] Histogram: Blink.JavascriptIntersectionObserver.UpdateTime.PostFCP has bad minimum: 0
[0331/231741.428:VERBOSE1:histogram.cc(444)] Histogram: Blink.JavascriptIntersectionObserver.UpdateTime.AggregatedPreFCP has bad minimum: 0
[0331/231741.428:VERBOSE1:histogram.cc(444)] Histogram: Blink.LazyLoadIntersectionObserver.UpdateTime.PreFCP has bad minimum: 0
[0331/231741.428:VERBOSE1:histogram.cc(444)] Histogram: Blink.LazyLoadIntersectionObserver.UpdateTime.PostFCP has bad minimum: 0
[0331/231741.428:VERBOSE1:histogram.cc(444)] Histogram: Blink.LazyLoadIntersectionObserver.UpdateTime.AggregatedPreFCP has bad minimum: 0
[0331/231741.428:VERBOSE1:histogram.cc(444)] Histogram: Blink.MediaIntersectionObserver.UpdateTime.PreFCP has bad minimum: 0
[0331/231741.428:VERBOSE1:histogram.cc(444)] Histogram: Blink.MediaIntersectionObserver.UpdateTime.PostFCP has bad minimum: 0
[0331/231741.428:VERBOSE1:histogram.cc(444)] Histogram: Blink.MediaIntersectionObserver.UpdateTime.AggregatedPreFCP has bad minimum: 0
[0331/231741.428:VERBOSE1:histogram.cc(444)] Histogram: Blink.UpdateViewportIntersection.UpdateTime.PreFCP has bad minimum: 0
[0331/231741.428:VERBOSE1:histogram.cc(444)] Histogram: Blink.UpdateViewportIntersection.UpdateTime.PostFCP has bad minimum: 0
[0331/231741.428:VERBOSE1:histogram.cc(444)] Histogram: Blink.UpdateViewportIntersection.UpdateTime.AggregatedPreFCP has bad minimum: 0
[0331/231741.428:VERBOSE1:histogram.cc(444)] Histogram: Blink.ForcedStyleAndLayout.UpdateTime.PreFCP has bad minimum: 0
[0331/231741.428:VERBOSE1:histogram.cc(444)] Histogram: Blink.ForcedStyleAndLayout.UpdateTime.PostFCP has bad minimum: 0
[0331/231741.429:VERBOSE1:histogram.cc(444)] Histogram: Blink.ForcedStyleAndLayout.UpdateTime.AggregatedPreFCP has bad minimum: 0
[0331/231741.429:VERBOSE1:histogram.cc(444)] Histogram: Blink.ContentDocumentUpdate.UpdateTime.PreFCP has bad minimum: 0
[0331/231741.429:VERBOSE1:histogram.cc(444)] Histogram: Blink.ContentDocumentUpdate.UpdateTime.PostFCP has bad minimum: 0
[0331/231741.429:VERBOSE1:histogram.cc(444)] Histogram: Blink.ContentDocumentUpdate.UpdateTime.AggregatedPreFCP has bad minimum: 0
[0331/231741.429:VERBOSE1:histogram.cc(444)] Histogram: Blink.HitTestDocumentUpdate.UpdateTime.PreFCP has bad minimum: 0
[0331/231741.429:VERBOSE1:histogram.cc(444)] Histogram: Blink.HitTestDocumentUpdate.UpdateTime.PostFCP has bad minimum: 0
[0331/231741.429:VERBOSE1:histogram.cc(444)] Histogram: Blink.HitTestDocumentUpdate.UpdateTime.AggregatedPreFCP has bad minimum: 0
[0331/231741.429:VERBOSE1:histogram.cc(444)] Histogram: Blink.JavascriptDocumentUpdate.UpdateTime.PreFCP has bad minimum: 0
[0331/231741.429:VERBOSE1:histogram.cc(444)] Histogram: Blink.JavascriptDocumentUpdate.UpdateTime.PostFCP has bad minimum: 0
[0331/231741.429:VERBOSE1:histogram.cc(444)] Histogram: Blink.JavascriptDocumentUpdate.UpdateTime.AggregatedPreFCP has bad minimum: 0
[0331/231741.429:VERBOSE1:histogram.cc(444)] Histogram: Blink.ScrollDocumentUpdate.UpdateTime.PreFCP has bad minimum: 0
[0331/231741.429:VERBOSE1:histogram.cc(444)] Histogram: Blink.ScrollDocumentUpdate.UpdateTime.PostFCP has bad minimum: 0
[0331/231741.429:VERBOSE1:histogram.cc(444)] Histogram: Blink.ScrollDocumentUpdate.UpdateTime.AggregatedPreFCP has bad minimum: 0
[0331/231741.429:VERBOSE1:node_controller.cc(150)] Initializing node E8FB328525918E47.C5D0A219F5D02C2B
[0331/231741.429:VERBOSE1:histogram.cc(444)] Histogram: Blink.ServiceDocumentUpdate.UpdateTime.PreFCP has bad minimum: 0
[0331/231741.429:VERBOSE1:histogram.cc(444)] Histogram: Blink.ServiceDocumentUpdate.UpdateTime.PostFCP has bad minimum: 0
[0331/231741.429:VERBOSE1:histogram.cc(444)] Histogram: Blink.ServiceDocumentUpdate.UpdateTime.AggregatedPreFCP has bad minimum: 0
[0331/231741.429:VERBOSE1:histogram.cc(444)] Histogram: Blink.UserDrivenDocumentUpdate.UpdateTime.PreFCP has bad minimum: 0
[0331/231741.429:VERBOSE1:histogram.cc(444)] Histogram: Blink.UserDrivenDocumentUpdate.UpdateTime.PostFCP has bad minimum: 0
[0331/231741.429:VERBOSE1:histogram.cc(444)] Histogram: Blink.UserDrivenDocumentUpdate.UpdateTime.AggregatedPreFCP has bad minimum: 0
[0331/231741.429:VERBOSE1:node_controller.cc(812)] Broker client E8FB328525918E47.C5D0A219F5D02C2B accepting invitation from 945CE657DDB0A01F.FC87F0BC21B9ED95
[0331/231741.429:VERBOSE1:node_controller.cc(847)] Node 945CE657DDB0A01F.FC87F0BC21B9ED95 accepted invitee E8FB328525918E47.C5D0A219F5D02C2B
[0331/231741.430:VERBOSE1:node_controller.cc(1026)] Client E8FB328525918E47.C5D0A219F5D02C2B accepted by broker 945CE657DDB0A01F.FC87F0BC21B9ED95
[0331/231741.430:VERBOSE1:data_pipe_consumer_dispatcher.cc(95)] Closing data pipe consumer 14535350411558582693
[0331/231741.430:VERBOSE1:node.cc(466)] Sending MergePort from E43F192028A532B0.A544D935DD1C14A7@945CE657DDB0A01F.FC87F0BC21B9ED95 to 1752855941EF9EF.676B8C9DDC8D2AC2@E8FB328525918E47.C5D0A219F5D02C2B
[0331/231741.431:ERROR:runtime_enabled_features.cc(2100)] RuntimeEnabledFeature not recognized: LayoutNGFieldset
[0331/231741.431:VERBOSE1:node.cc(833)] MergePort at 1752855941EF9EF.676B8C9DDC8D2AC2@E8FB328525918E47.C5D0A219F5D02C2B merging with proxy 88D46A9580CA292D.67C2090E08C74E2C@E8FB328525918E47.C5D0A219F5D02C2B pointing to 60F444A02967DBA1.D6F126D83173798B@945CE657DDB0A01F.FC87F0BC21B9ED95 referred by E43F192028A532B0.A544D935DD1C14A7@945CE657DDB0A01F.FC87F0BC21B9ED95
[0331/231741.431:VERBOSE1:node.cc(466)] Sending MergePort from 6514AE55AA45867C.529A823957697FF@945CE657DDB0A01F.FC87F0BC21B9ED95 to 788D658F7CE47FC6.DEE5796D482A18AD@E8FB328525918E47.C5D0A219F5D02C2B
[0331/231741.432:VERBOSE1:media_source_registry_impl.cc(44)] Init instance=00000DD4002C1F00
[0331/231741.432:VERBOSE1:node.cc(833)] MergePort at 788D658F7CE47FC6.DEE5796D482A18AD@E8FB328525918E47.C5D0A219F5D02C2B merging with proxy 94364309E292C93D.E99ED44AFB481659@E8FB328525918E47.C5D0A219F5D02C2B pointing to F37F89DDED676627.D88807EAEC021EFC@945CE657DDB0A01F.FC87F0BC21B9ED95 referred by 6514AE55AA45867C.529A823957697FF@945CE657DDB0A01F.FC87F0BC21B9ED95
[0331/231741.433:VERBOSE1:node.cc(493)] Merging local ports E0D00AA6BDD69F87.DE0E61F3173FD487@E8FB328525918E47.C5D0A219F5D02C2B and 3EEF36CB67297A95.D495FB95A431138@E8FB328525918E47.C5D0A219F5D02C2B
[0331/231741.433:VERBOSE1:histogram.cc(444)] Histogram: Blink.Fetch.RequestResourceTime has bad minimum: 0
[0331/231741.434:VERBOSE1:resource_fetcher.cc(1274)] Loading Resource for "chrome://resources/css/text_defaults.css"
[0331/231741.434:VERBOSE1:memory_cache.cc(133)] MemoryCache::add Added "chrome://resources/css/text_defaults.css", resource 00001CFAAF583E58
[0331/231741.434:VERBOSE1:resource_fetcher.cc(1274)] Loading Resource for "chrome://sandbox/sandbox_internals.js"
[0331/231741.435:VERBOSE1:memory_cache.cc(133)] MemoryCache::add Added "chrome://sandbox/sandbox_internals.js", resource 00001CFAAF584AD8
[0331/231741.437:VERBOSE1:module_tree_linker.cc(139)] ModuleTreeLinker[00001CFAAF586060, original_url="chrome://sandbox/sandbox_internals.js", url=<null>, module_type=JavaScript, inline=0]::advanceState(Initial -> FetchingSelf)
[0331/231741.437:VERBOSE1:module_script_loader.cc(73)] ModuleLoader[<null>]::advanceState(Initial -> Fetching)
[0331/231741.437:VERBOSE1:ipc_sync_channel.cc(447)] Canceling pending sends
[0331/231741.438:VERBOSE1:html_tree_builder.cc(1532)] Not implmeneted.
[0331/231741.438:VERBOSE1:html_tree_builder.cc(1532)] Not implmeneted.
[0331/231741.438:VERBOSE1:html_tree_builder.cc(2574)] Not implemented.
[0331/231741.440:VERBOSE1:node_controller.cc(1143)] Adding new peer 7A5141EC9C38F483.B9BE57A44D02C515 via broker introduction.
[0331/231741.440:VERBOSE1:node_controller.cc(1143)] Adding new peer 3DBFF304308C9712.B4DDD75ADCB221A6 via broker introduction.
[0331/231741.441:VERBOSE1:histogram.cc(444)] Histogram: GPU.AcceleratedSurfaceRefreshRate has bad minimum: 0
[0331/231741.441:VERBOSE1:node_controller.cc(604)] Dropped peer 47CB74E14780661A.A76A721BA0BACA7F
[0331/231741.441:VERBOSE1:node_controller.cc(604)] Dropped peer 47CB74E14780661A.A76A721BA0BACA7F
[0331/231741.441:VERBOSE1:node.cc(503)] Observing lost connection from node 198B504F1C196779.C416CCF3350BE6CF to node 47CB74E14780661A.A76A721BA0BACA7F
[0331/231741.445:VERBOSE1:node_controller.cc(604)] Dropped peer 47CB74E14780661A.A76A721BA0BACA7F
[0331/231741.445:VERBOSE1:node.cc(503)] Observing lost connection from node 3DBFF304308C9712.B4DDD75ADCB221A6 to node 47CB74E14780661A.A76A721BA0BACA7F
[0331/231741.441:VERBOSE1:node.cc(503)] Observing lost connection from node 945CE657DDB0A01F.FC87F0BC21B9ED95 to node 47CB74E14780661A.A76A721BA0BACA7F
[0331/231741.441:VERBOSE1:node_controller.cc(686)] Dropping message for unknown peer: 47CB74E14780661A.A76A721BA0BACA7F
[0331/231741.448:VERBOSE1:node_controller.cc(686)] Dropping message for unknown peer: 47CB74E14780661A.A76A721BA0BACA7F
[0331/231741.448:VERBOSE1:node_controller.cc(686)] Dropping message for unknown peer: 47CB74E14780661A.A76A721BA0BACA7F
[0331/231741.449:VERBOSE1:node_controller.cc(686)] Dropping message for unknown peer: 47CB74E14780661A.A76A721BA0BACA7F
[0331/231741.450:VERBOSE1:node_controller.cc(686)] Dropping message for unknown peer: 47CB74E14780661A.A76A721BA0BACA7F
[0331/231741.475:VERBOSE1:node_controller.cc(686)] Dropping message for unknown peer: 47CB74E14780661A.A76A721BA0BACA7F
[0331/231741.486:VERBOSE1:node_controller.cc(686)] Dropping message for unknown peer: 47CB74E14780661A.A76A721BA0BACA7F
[0331/231741.448:VERBOSE1:node_controller.cc(686)] Dropping message for unknown peer: 47CB74E14780661A.A76A721BA0BACA7F
[0331/231741.479:VERBOSE1:node_controller.cc(686)] Dropping message for unknown peer: 47CB74E14780661A.A76A721BA0BACA7F
[0331/231741.494:VERBOSE1:node_controller.cc(686)] Dropping message for unknown peer: 47CB74E14780661A.A76A721BA0BACA7F
[0331/231741.498:VERBOSE1:ipc_sync_channel.cc(447)] Canceling pending sends
[0331/231741.498:VERBOSE1:ipc_sync_channel.cc(447)] Canceling pending sends
[0331/231741.498:VERBOSE1:ipc_sync_channel.cc(447)] Canceling pending sends
[0331/231741.498:VERBOSE1:node_controller.cc(686)] Dropping message for unknown peer: 47CB74E14780661A.A76A721BA0BACA7F
[0331/231741.501:VERBOSE1:discardable_memory_utils.cc(30)] Using shared memory for discardable memory
[0331/231741.498:VERBOSE1:node_controller.cc(686)] Dropping message for unknown peer: 47CB74E14780661A.A76A721BA0BACA7F
[0331/231741.509:VERBOSE1:data_pipe_producer_dispatcher.cc(459)] Data pipe producer 18180120886496731680 notifying peer: 962 bytes written. [control_port=F0763F08B43D1572.1301EDE81C8E3F2C]
[0331/231741.509:VERBOSE1:node_controller.cc(686)] Dropping message for unknown peer: 47CB74E14780661A.A76A721BA0BACA7F
[0331/231741.509:VERBOSE1:data_pipe_consumer_dispatcher.cc(531)] Control port status changed for data pipe producer 18180120886496731680
[0331/231741.510:VERBOSE1:node_controller.cc(686)] Dropping message for unknown peer: 47CB74E14780661A.A76A721BA0BACA7F
[0331/231741.511:VERBOSE1:data_pipe_consumer_dispatcher.cc(580)] Data pipe consumer 18180120886496731680 is aware that 962 bytes were written. [control_port=C40AAF639F6B61C.4233A00D63048C33]
[0331/231741.517:VERBOSE1:node_controller.cc(686)] Dropping message for unknown peer: 47CB74E14780661A.A76A721BA0BACA7F
[0331/231741.521:VERBOSE1:data_pipe_producer_dispatcher.cc(94)] Closing data pipe producer 18180120886496731680
[0331/231741.521:VERBOSE1:node_controller.cc(686)] Dropping message for unknown peer: 47CB74E14780661A.A76A721BA0BACA7F
[0331/231741.522:VERBOSE1:data_pipe_producer_dispatcher.cc(478)] Control port status changed for data pipe producer 18180120886496731680
[0331/231741.523:VERBOSE1:node_controller.cc(686)] Dropping message for unknown peer: 47CB74E14780661A.A76A721BA0BACA7F
[0331/231741.523:VERBOSE1:data_pipe_producer_dispatcher.cc(494)] Data pipe producer 18180120886496731680 is aware of peer closure [control_port=F0763F08B43D1572.1301EDE81C8E3F2C]
[0331/231741.525:VERBOSE1:data_pipe_consumer_dispatcher.cc(547)] Data pipe consumer 18180120886496731680 is aware of peer closure [control_port=8F9D5FF78CCB7704.ADFBB6467DF1CFF7]
[0331/231741.525:VERBOSE1:data_pipe_consumer_dispatcher.cc(512)] Data pipe consumer 18180120886496731680 notifying peer: 962 bytes read. [control_port=8F9D5FF78CCB7704.ADFBB6467DF1CFF7]
[0331/231741.524:VERBOSE1:node_controller.cc(686)] Dropping message for unknown peer: 47CB74E14780661A.A76A721BA0BACA7F
[0331/231741.525:VERBOSE1:data_pipe_consumer_dispatcher.cc(95)] Closing data pipe consumer 18180120886496731680
[0331/231741.526:VERBOSE1:data_pipe_producer_dispatcher.cc(459)] Data pipe producer 2924075678965157051 notifying peer: 14561 bytes written. [control_port=EA8BB67FD5E3C5ED.C9EEA01F6C0F2AF]
[0331/231741.529:VERBOSE1:histogram.cc(444)] Histogram: Style.InvalidationTime has bad minimum: 0
[0331/231741.529:VERBOSE1:histogram.cc(444)] Histogram: Style.RecalcTime has bad minimum: 0
[0331/231741.526:VERBOSE1:data_pipe_consumer_dispatcher.cc(531)] Control port status changed for data pipe producer 2924075678965157051
[0331/231741.530:VERBOSE1:histogram.cc(444)] Histogram: Style.RebuildLayoutTreeTime has bad minimum: 0
[0331/231741.529:VERBOSE1:data_pipe_consumer_dispatcher.cc(580)] Data pipe consumer 2924075678965157051 is aware that 14561 bytes were written. [control_port=53B221B5E77C9875.3FD839BACE926B64]
[0331/231741.536:VERBOSE1:data_pipe_producer_dispatcher.cc(94)] Closing data pipe producer 2924075678965157051
[0331/231741.537:VERBOSE1:data_pipe_producer_dispatcher.cc(478)] Control port status changed for data pipe producer 2924075678965157051
[0331/231741.537:VERBOSE1:data_pipe_producer_dispatcher.cc(494)] Data pipe producer 2924075678965157051 is aware of peer closure [control_port=EA8BB67FD5E3C5ED.C9EEA01F6C0F2AF]
[0331/231741.562:INFO:paint_property_tree_printer.cc(227)] Transform tree:
root 0000071400B6C850 {"flattensInheritedTransform":false,"in_subtree_of_page_scale":false,"scroll":"000007140036E820"}
  Overscroll Elasticity Node 0000071400B6C7A0 {"parent":"0000071400B6C850","changed":"node-add-remove","flattensInheritedTransform":false,"in_subtree_of_page_scale":false}
    VisualViewport Scale Node 0000071400B6C6F0 {"parent":"0000071400B6C7A0","changed":"node-add-remove","flattensInheritedTransform":false,"in_subtree_of_page_scale":false,"directCompositingReasons":"","compositorElementId":"(16)"}
      VisualViewport Translate Node 0000071400B6C640 {"parent":"0000071400B6C6F0","changed":"node-add-remove","flattensInheritedTransform":false,"directCompositingReasons":"","scroll":"000007140036EDC0"}
        PaintOffsetTranslation (LayoutView #document) 0000071400B6D090 {"parent":"0000071400B6C640","changed":"node-add-remove"}
          ScrollTranslation (LayoutView #document) 0000071400B6CFE0 {"parent":"0000071400B6D090","changed":"node-add-remove","directCompositingReasons":"overflowScrolling,rootScroller","scroll":"000007140036EAF0"}

[0331/231741.562:INFO:paint_property_tree_printer.cc(232)] Clip tree:
root 000007140036EEB0 {"localTransformSpace":"0000071400B6C850","rect":"InfiniteIntRect"}
  OverflowClip (LayoutView #document) 000007140036EBE0 {"parent":"000007140036EEB0","changed":"node-add-remove","localTransformSpace":"0000071400B6D090","rect":"0,0 3840x1988","rectExcludingOverlayScrollbars":"0,0 3840x1988"}

[0331/231741.562:INFO:paint_property_tree_printer.cc(236)] Effect tree:

[0331/231741.562:INFO:paint_property_tree_printer.cc(240)] Scroll tree:
root 000007140036E820 {}
  VisualViewport Scroll Node 000007140036EDC0 {"parent":"000007140036E820","changed":"node-add-remove","containerRect":"0,0 3840x1988","contentsSize":"3840x1988","userScrollable":"both","maxScrollOffsetAffectedByPageScale":"true","compositorElementId":"(18)"}
    Scroll (LayoutView #document) 000007140036EAF0 {"parent":"000007140036EDC0","changed":"node-add-remove","containerRect":"0,0 3840x1988","contentsSize":"3840x1988","userScrollable":"both","compositorElementId":"(82)"}

[0331/231741.564:VERBOSE1:paint_controller.cc(618)] PaintController::FinishCycle() completed
[0331/231741.564:INFO:paint_controller_debug_data.cc(141)] current paint artifact: [
  {
    "chunk": "Scrolling background of LayoutView #document 00001CFAAF46DAD8:Scrolling background of LayoutView #document:DrawingDocumentBackground:0",
    "state": "t:0000071400B6CFE0 c:000007140036EBE0 e:0000071400349690",
    "bounds": "0,0 3840x1988",
    "displayItems": [
      "00001CFAAF46DAD8:Scrolling background of LayoutView #document:DrawingDocumentBackground:0",
      "0000071400C2C018:LayoutTable TABLE id='sandbox-status':DrawingBoxDecorationBackground:0",
      "0000071400C181D8:LayoutText #text:DrawingPaintPhaseForeground:0"
    ]
  }
]

[0331/231741.564:INFO:paint_controller_debug_data.cc(150)] new paint artifact: []

[0331/231741.565:VERBOSE1:data_pipe_consumer_dispatcher.cc(547)] Data pipe consumer 2924075678965157051 is aware of peer closure [control_port=5DF4D05D565EEDFC.4DB6111085DFB4C4]
[0331/231741.566:VERBOSE1:data_pipe_consumer_dispatcher.cc(512)] Data pipe consumer 2924075678965157051 notifying peer: 14561 bytes read. [control_port=5DF4D05D565EEDFC.4DB6111085DFB4C4]
[0331/231741.566:VERBOSE1:data_pipe_consumer_dispatcher.cc(95)] Closing data pipe consumer 2924075678965157051
[0331/231741.567:VERBOSE1:module_record_resolver_impl.cc(23)] ModuleRecordResolverImpl::RegisterModuleScript(url="chrome://sandbox/sandbox_internals.js", hash=282727994)
[0331/231741.567:VERBOSE1:module_script_loader.cc(73)] ModuleLoader["chrome://sandbox/sandbox_internals.js"]::advanceState(Fetching -> Finished)
[0331/231741.567:VERBOSE1:render_accessibility_impl.cc(893)] Accessibility event: layoutComplete on node id 1
[0331/231741.568:VERBOSE1:render_accessibility_impl.cc(893)] Accessibility event: childrenChanged on node id 1
[0331/231741.568:VERBOSE1:render_accessibility_impl.cc(893)] Accessibility event: layoutComplete on node id 1
[0331/231741.568:VERBOSE1:render_accessibility_impl.cc(893)] Accessibility event: documentTitleChanged on node id 1
[0331/231741.591:VERBOSE1:render_accessibility_impl.cc(987)] Accessibility tree update:
AXTreeUpdate tree data: tree_id=09347C1B doctype=html loading_progress=0.699999988079071 mimetype=text/html url=chrome://sandbox/ title=Sandbox Status focus_id=1
AXTreeUpdate: root id 1
event_from=action
id=1 rootWebArea FOCUSABLE (0, 0)-(3840, 1988) text_align=left dom_node_id=1 background_color=&FFFFFFFF color=&FF000000 text_direction=ltr scroll_x=0 scroll_y=0 scroll_x_min=0 scroll_y_min=0 scroll_x_max=0 scroll_y_max=0 name_from=relatedElement language=en value= url=chrome://sandbox/ font-family=Times New Roman name=Sandbox Status html_tag=#document font_size=32 font_weight=400 scrollable=true clips_children=true is_line_breaking_object=true labelledby_ids=3 child_ids=2
  id=2 genericContainer IGNORED offset_container_id=1 (0, 0)-(3840, 156.3125) text_align=left dom_node_id=3 background_color=&FFFFFFFF color=&FF000000 text_direction=ltr value= html_tag=html display=block font_size=32 font_weight=400 is_line_breaking_object=true child_ids=4
    id=4 genericContainer IGNORED offset_container_id=1 (16, 32.15625)-(3808, 100.15625) text_align=left dom_node_id=4 background_color=&FFFFFFFF color=&FF000000 text_direction=ltr value= font-family=Segoe UI html_tag=body display=block font_size=24 font_weight=400 is_line_breaking_object=true child_ids=5,6,7,8
      id=5 heading offset_container_id=1 (16, 32.15625)-(3808, 64) text_align=left dom_node_id=2 level=1 background_color=&FFFFFFFF color=&FF000000 text_direction=ltrbold name_from=contents value= font-family=Segoe UI role=heading html_tag=h1 name=Sandbox Status display=block font_size=48 font_weight=700 is_line_breaking_object=true child_ids=9
        id=9 staticText offset_container_id=1 (16, 32.15625)-(348.453125, 64) dom_node_id=5 background_color=&FFFFFFFF color=&FF000000 text_direction=ltrbold name_from=contents value= name=Sandbox Status display=block font_size=48 font_weight=700 child_ids=10
          id=10 inlineTextBox offset_container_id=9 (0, 0)-(348.453125, 64) dom_node_id=5 color=&FF000000 text_direction=ltr name_from=contents value= name=Sandbox Status display=block character_offsets=27,53,82,111,141,170,196,209,235,254,280,298,327,348 word_starts=0,8 word_ends=7,14
      id=6 layoutTable offset_container_id=1 (16, 128.3125)-(4, 4) text_align=left dom_node_id=6 background_color=&FFFFFFFF color=&FF000000 text_direction=ltr value= font-family=Segoe UI html_tag=table display=table font_size=24 font_weight=400 is_line_breaking_object=true
      id=7 paragraph IGNORED offset_container_id=1 (16, 156.3125)-(3808, 0) text_align=left dom_node_id=7 background_color=&FFFFFFFF color=&FF000000 text_direction=ltrbold value= font-family=Segoe UI html_tag=p display=block font_size=24 font_weight=700 is_line_breaking_object=true
      id=8 pre IGNORED offset_container_id=1 (16, 156.3125)-(3808, 0) text_align=left dom_node_id=8 background_color=&FFFFFFFF color=&FF000000 text_direction=ltr value= font-family=Consolas html_tag=pre display=block font_size=19.5 font_weight=400 is_line_breaking_object=true

[0331/231741.591:VERBOSE1:module_tree_linker.cc(309)] ModuleTreeLinker[00001CFAAF586060, original_url="chrome://sandbox/sandbox_internals.js", url="chrome://sandbox/sandbox_internals.js", module_type=JavaScript, inline=0]::NotifyModuleLoadFinished() with ModuleScript[00001CFAAF5877A0]
[0331/231741.593:VERBOSE1:module_tree_linker.cc(139)] ModuleTreeLinker[00001CFAAF586060, original_url="chrome://sandbox/sandbox_internals.js", url="chrome://sandbox/sandbox_internals.js", module_type=JavaScript, inline=0]::advanceState(FetchingSelf -> FetchingDependencies)
[0331/231741.593:VERBOSE1:module_script_loader.cc(73)] ModuleLoader[<null>]::advanceState(Initial -> Fetching)
[0331/231741.593:VERBOSE1:resource_fetcher.cc(1274)] Loading Resource for "chrome://resources/js/assert.m.js"
[0331/231741.593:VERBOSE1:memory_cache.cc(133)] MemoryCache::add Added "chrome://resources/js/assert.m.js", resource 00001CFAAF5883B8
[0331/231741.594:VERBOSE1:module_script_loader.cc(73)] ModuleLoader[<null>]::advanceState(Initial -> Fetching)
[0331/231741.594:VERBOSE1:resource_fetcher.cc(1274)] Loading Resource for "chrome://resources/js/cr.m.js"
[0331/231741.594:VERBOSE1:memory_cache.cc(133)] MemoryCache::add Added "chrome://resources/js/cr.m.js", resource 00001CFAAF589170
[0331/231741.595:VERBOSE1:module_script_loader.cc(73)] ModuleLoader[<null>]::advanceState(Initial -> Fetching)
[0331/231741.595:VERBOSE1:resource_fetcher.cc(1274)] Loading Resource for "chrome://resources/js/util.m.js"
[0331/231741.595:VERBOSE1:memory_cache.cc(133)] MemoryCache::add Added "chrome://resources/js/util.m.js", resource 00001CFAAF589F28
[0331/231741.595:VERBOSE1:data_pipe_producer_dispatcher.cc(459)] Data pipe producer 10882661861559726869 notifying peer: 2509 bytes written. [control_port=5A0BCD71CF2F3617.3F32243F93209A2B]
[0331/231741.595:VERBOSE1:data_pipe_consumer_dispatcher.cc(531)] Control port status changed for data pipe producer 10882661861559726869
[0331/231741.596:VERBOSE1:data_pipe_producer_dispatcher.cc(459)] Data pipe producer 18215368667707780997 notifying peer: 12533 bytes written. [control_port=CAE0E84FEF070194.A0C77B718334FE7F]
[0331/231741.609:VERBOSE1:data_pipe_consumer_dispatcher.cc(580)] Data pipe consumer 10882661861559726869 is aware that 2509 bytes were written. [control_port=D8943B647E787DE4.5B8DE7D26708F25E]
[0331/231741.611:VERBOSE1:data_pipe_consumer_dispatcher.cc(531)] Control port status changed for data pipe producer 18215368667707780997
[0331/231741.604:VERBOSE1:data_pipe_producer_dispatcher.cc(459)] Data pipe producer 17936295281349743686 notifying peer: 10626 bytes written. [control_port=868D08BAE33C2360.7FC8A433E7DA45EA]
[0331/231741.613:VERBOSE1:data_pipe_producer_dispatcher.cc(94)] Closing data pipe producer 10882661861559726869
[0331/231741.615:VERBOSE1:data_pipe_consumer_dispatcher.cc(531)] Control port status changed for data pipe producer 17936295281349743686
[0331/231741.614:VERBOSE1:data_pipe_consumer_dispatcher.cc(580)] Data pipe consumer 18215368667707780997 is aware that 12533 bytes were written. [control_port=4E41F38EC946B6E7.1DE800928A024B48]
[0331/231741.615:VERBOSE1:data_pipe_producer_dispatcher.cc(478)] Control port status changed for data pipe producer 10882661861559726869
[0331/231741.615:VERBOSE1:data_pipe_consumer_dispatcher.cc(580)] Data pipe consumer 17936295281349743686 is aware that 10626 bytes were written. [control_port=4B9B98589BB2D632.37490693BFB5F485]
[0331/231741.616:VERBOSE1:data_pipe_producer_dispatcher.cc(94)] Closing data pipe producer 18215368667707780997
[0331/231741.618:VERBOSE1:data_pipe_producer_dispatcher.cc(494)] Data pipe producer 10882661861559726869 is aware of peer closure [control_port=5A0BCD71CF2F3617.3F32243F93209A2B]
[0331/231741.640:VERBOSE1:data_pipe_producer_dispatcher.cc(94)] Closing data pipe producer 17936295281349743686
[0331/231741.655:VERBOSE1:data_pipe_consumer_dispatcher.cc(512)] Data pipe consumer 10882661861559726869 notifying peer: 2509 bytes read. [control_port=DC29E87DBFEB8990.B9E38D58CB74AC18]
[0331/231741.655:VERBOSE1:data_pipe_consumer_dispatcher.cc(547)] Data pipe consumer 18215368667707780997 is aware of peer closure [control_port=4E41F38EC946B6E7.1DE800928A024B48]
[0331/231741.656:VERBOSE1:data_pipe_consumer_dispatcher.cc(547)] Data pipe consumer 17936295281349743686 is aware of peer closure [control_port=4B9B98589BB2D632.37490693BFB5F485]
[0331/231741.657:VERBOSE1:data_pipe_consumer_dispatcher.cc(531)] Control port status changed for data pipe producer 10882661861559726869
[0331/231741.657:VERBOSE1:data_pipe_consumer_dispatcher.cc(547)] Data pipe consumer 10882661861559726869 is aware of peer closure [control_port=DC29E87DBFEB8990.B9E38D58CB74AC18]
[0331/231741.657:VERBOSE1:data_pipe_consumer_dispatcher.cc(547)] Data pipe consumer 18215368667707780997 is aware of peer closure [control_port=2361F292C0802779.402ED560F6F46FB9]
[0331/231741.657:VERBOSE1:data_pipe_consumer_dispatcher.cc(512)] Data pipe consumer 18215368667707780997 notifying peer: 12533 bytes read. [control_port=2361F292C0802779.402ED560F6F46FB9]
[0331/231741.657:VERBOSE1:data_pipe_consumer_dispatcher.cc(95)] Closing data pipe consumer 18215368667707780997
[0331/231741.659:VERBOSE1:module_record_resolver_impl.cc(23)] ModuleRecordResolverImpl::RegisterModuleScript(url="chrome://resources/js/cr.m.js", hash=372618793)
[0331/231741.659:VERBOSE1:module_script_loader.cc(73)] ModuleLoader["chrome://resources/js/cr.m.js"]::advanceState(Fetching -> Finished)
[0331/231741.659:VERBOSE1:data_pipe_consumer_dispatcher.cc(547)] Data pipe consumer 17936295281349743686 is aware of peer closure [control_port=E107AA522FE31FAC.E23922E1F1C6740A]
[0331/231741.659:VERBOSE1:data_pipe_consumer_dispatcher.cc(512)] Data pipe consumer 17936295281349743686 notifying peer: 10626 bytes read. [control_port=E107AA522FE31FAC.E23922E1F1C6740A]
[0331/231741.659:VERBOSE1:data_pipe_consumer_dispatcher.cc(95)] Closing data pipe consumer 17936295281349743686
[0331/231741.660:VERBOSE1:module_record_resolver_impl.cc(23)] ModuleRecordResolverImpl::RegisterModuleScript(url="chrome://resources/js/util.m.js", hash=600457138)
[0331/231741.660:VERBOSE1:module_script_loader.cc(73)] ModuleLoader["chrome://resources/js/util.m.js"]::advanceState(Fetching -> Finished)
[0331/231741.661:VERBOSE1:data_pipe_consumer_dispatcher.cc(95)] Closing data pipe consumer 10882661861559726869
[0331/231741.661:VERBOSE1:module_record_resolver_impl.cc(23)] ModuleRecordResolverImpl::RegisterModuleScript(url="chrome://resources/js/assert.m.js", hash=679243637)
[0331/231741.661:VERBOSE1:module_script_loader.cc(73)] ModuleLoader["chrome://resources/js/assert.m.js"]::advanceState(Fetching -> Finished)
[0331/231741.661:VERBOSE1:module_tree_linker.cc(309)] ModuleTreeLinker[00001CFAAF586060, original_url="chrome://sandbox/sandbox_internals.js", url="chrome://sandbox/sandbox_internals.js", module_type=JavaScript, inline=0]::NotifyModuleLoadFinished() with ModuleScript[00001CFAAF58AE68]
[0331/231741.661:VERBOSE1:module_script_loader.cc(73)] ModuleLoader[<null>]::advanceState(Initial -> Fetching)
[0331/231741.662:VERBOSE1:resource_fetcher.cc(1274)] Loading Resource for "chrome://resources/js/promise_resolver.m.js"
[0331/231741.662:VERBOSE1:memory_cache.cc(133)] MemoryCache::add Added "chrome://resources/js/promise_resolver.m.js", resource 00001CFAAF58B5C8
[0331/231741.662:VERBOSE1:module_tree_linker.cc(309)] ModuleTreeLinker[00001CFAAF586060, original_url="chrome://sandbox/sandbox_internals.js", url="chrome://sandbox/sandbox_internals.js", module_type=JavaScript, inline=0]::NotifyModuleLoadFinished() with ModuleScript[00001CFAAF58B160]
[0331/231741.662:VERBOSE1:module_tree_linker.cc(309)] ModuleTreeLinker[00001CFAAF586060, original_url="chrome://sandbox/sandbox_internals.js", url="chrome://sandbox/sandbox_internals.js", module_type=JavaScript, inline=0]::NotifyModuleLoadFinished() with ModuleScript[00001CFAAF58B308]
[0331/231741.663:VERBOSE1:data_pipe_producer_dispatcher.cc(459)] Data pipe producer 17702235603901201694 notifying peer: 1833 bytes written. [control_port=C5B15E61E88F57D8.3A642A2970EDDF36]
[0331/231741.668:VERBOSE1:data_pipe_consumer_dispatcher.cc(531)] Control port status changed for data pipe producer 17702235603901201694
[0331/231741.703:VERBOSE1:data_pipe_consumer_dispatcher.cc(580)] Data pipe consumer 17702235603901201694 is aware that 1833 bytes were written. [control_port=B3CDAE2CE5E7AB98.D03B8223CE20F272]
[0331/231741.713:VERBOSE1:data_pipe_producer_dispatcher.cc(94)] Closing data pipe producer 17702235603901201694
[0331/231741.714:VERBOSE1:data_pipe_producer_dispatcher.cc(478)] Control port status changed for data pipe producer 17702235603901201694
[0331/231741.714:VERBOSE1:data_pipe_producer_dispatcher.cc(494)] Data pipe producer 17702235603901201694 is aware of peer closure [control_port=C5B15E61E88F57D8.3A642A2970EDDF36]
[0331/231741.715:VERBOSE1:data_pipe_consumer_dispatcher.cc(512)] Data pipe consumer 17702235603901201694 notifying peer: 1833 bytes read. [control_port=971DBEE2616AC9F8.C86344ECB488E652]
[0331/231741.715:VERBOSE1:data_pipe_consumer_dispatcher.cc(531)] Control port status changed for data pipe producer 17702235603901201694
[0331/231741.715:VERBOSE1:data_pipe_consumer_dispatcher.cc(547)] Data pipe consumer 17702235603901201694 is aware of peer closure [control_port=971DBEE2616AC9F8.C86344ECB488E652]
[0331/231741.715:VERBOSE1:data_pipe_consumer_dispatcher.cc(95)] Closing data pipe consumer 17702235603901201694
[0331/231741.716:VERBOSE1:module_record_resolver_impl.cc(23)] ModuleRecordResolverImpl::RegisterModuleScript(url="chrome://resources/js/promise_resolver.m.js", hash=442791841)
[0331/231741.716:VERBOSE1:module_script_loader.cc(73)] ModuleLoader["chrome://resources/js/promise_resolver.m.js"]::advanceState(Fetching -> Finished)
[0331/231741.716:VERBOSE1:module_tree_linker.cc(309)] ModuleTreeLinker[00001CFAAF586060, original_url="chrome://sandbox/sandbox_internals.js", url="chrome://sandbox/sandbox_internals.js", module_type=JavaScript, inline=0]::NotifyModuleLoadFinished() with ModuleScript[00001CFAAF58C3B8]
[0331/231741.716:VERBOSE1:module_tree_linker.cc(139)] ModuleTreeLinker[00001CFAAF586060, original_url="chrome://sandbox/sandbox_internals.js", url="chrome://sandbox/sandbox_internals.js", module_type=JavaScript, inline=0]::advanceState(FetchingDependencies -> Instantiating)
[0331/231741.716:VERBOSE1:module_record_resolver_impl.cc(67)] ModuleRecordResolverImpl::resolve(specifier=""chrome://resources/js/assert.m.js", referrer.hash=282727994)
[0331/231741.717:VERBOSE1:module_record_resolver_impl.cc(67)] ModuleRecordResolverImpl::resolve(specifier=""chrome://resources/js/cr.m.js", referrer.hash=282727994)
[0331/231741.717:VERBOSE1:module_record_resolver_impl.cc(67)] ModuleRecordResolverImpl::resolve(specifier=""chrome://resources/js/util.m.js", referrer.hash=282727994)
[0331/231741.717:VERBOSE1:module_record_resolver_impl.cc(67)] ModuleRecordResolverImpl::resolve(specifier=""./assert.m.js", referrer.hash=372618793)
[0331/231741.717:VERBOSE1:module_record_resolver_impl.cc(67)] ModuleRecordResolverImpl::resolve(specifier=""./promise_resolver.m.js", referrer.hash=372618793)
[0331/231741.717:VERBOSE1:module_record_resolver_impl.cc(67)] ModuleRecordResolverImpl::resolve(specifier=""./assert.m.js", referrer.hash=442791841)
[0331/231741.717:VERBOSE1:module_record_resolver_impl.cc(67)] ModuleRecordResolverImpl::resolve(specifier=""./assert.m.js", referrer.hash=600457138)
[0331/231741.717:VERBOSE1:module_record_resolver_impl.cc(67)] ModuleRecordResolverImpl::resolve(specifier=""./cr.m.js", referrer.hash=600457138)
[0331/231741.717:VERBOSE1:module_tree_linker.cc(139)] ModuleTreeLinker[00001CFAAF586060, original_url="chrome://sandbox/sandbox_internals.js", url="chrome://sandbox/sandbox_internals.js", module_type=JavaScript, inline=0]::advanceState(Instantiating -> Finished)
[0331/231741.717:VERBOSE1:module_tree_linker.cc(171)] ModuleTreeLinker[00001CFAAF586060, original_url="chrome://sandbox/sandbox_internals.js", url="chrome://sandbox/sandbox_internals.js", module_type=JavaScript, inline=0] finished with final result ModuleScript[00001CFAAF5877A0]
[0331/231741.717:VERBOSE1:module_script.cc(113)] ModuleScript[00001CFAAF5877A0]::RunScript()
[0331/231741.723:VERBOSE1:render_accessibility_impl.cc(893)] Accessibility event: loadComplete on node id 1
[0331/231741.723:VERBOSE1:render_accessibility_impl.cc(987)] Accessibility tree update:
AXTreeUpdate tree data: tree_id=09347C1B doctype=html loaded=true loading_progress=1 mimetype=text/html url=chrome://sandbox/ title=Sandbox Status focus_id=1
event_from=action
id=5 heading offset_container_id=1 (16, 32.15625)-(3808, 64) text_align=left dom_node_id=2 level=1 background_color=&FFFFFFFF color=&FF000000 text_direction=ltrbold name_from=contents value= font-family=Segoe UI role=heading html_tag=h1 name=Sandbox Status display=block font_size=48 font_weight=700 is_line_breaking_object=true child_ids=9

[0331/231741.724:VERBOSE1:render_accessibility_impl.cc(987)] Accessibility tree update:
AXTreeUpdate: root id 1
event_from=page
id=1 rootWebArea FOCUSABLE (0, 0)-(3840, 1988) text_align=left dom_node_id=1 background_color=&FFFFFFFF color=&FF000000 text_direction=ltr scroll_x=0 scroll_y=0 scroll_x_min=0 scroll_y_min=0 scroll_x_max=0 scroll_y_max=0 name_from=relatedElement language=en value= url=chrome://sandbox/ font-family=Times New Roman name=Sandbox Status html_tag=#document font_size=32 font_weight=400 scrollable=true clips_children=true is_line_breaking_object=true labelledby_ids=3 child_ids=2


Code: Select all
NO_SANITIZE("cfi-icall") CEF_GLOBAL void CefRunMessageLoop() {
  // AUTO-GENERATED CONTENT - DELETE THIS COMMENT BEFORE MODIFYING

  // Execute
  cef_run_message_loop();
}
Unhandled exception at 0x000000CE416FEE18 in myApp.exe: 0xC0000005: Access violation executing location 0x000000CE416FEE18.


Top of the call stack before the fault:
Code: Select all
libcef.dll!sandbox::policy::`anonymous namespace'::ConvertToValuesAndRespond(std::__1::unique_ptr<sandbox::PolicyList,std::default_delete<sandbox::PolicyList>> policies, base::OnceCallback<void (base::Value)> response) Line 28
   at c:\code\chromium_git\chromium\src\sandbox\policy\win\sandbox_diagnostics.cc(28)
Last edited by leeroy on Wed Mar 31, 2021 8:33 pm, edited 1 time in total.
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Re: Enabled Sandbox Segfault Determining it's Functioning

Postby magreenblatt » Wed Mar 31, 2021 6:41 pm

What OS and CEF version? Does the problem reproduce with the CEF sample app?
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Re: Enabled Sandbox Segfault Determining it's Functioning

Postby leeroy » Wed Mar 31, 2021 7:59 pm

CEF: 4430 (cef_binary_90.1.0+g35a360f+chromium-90.0.4430.30)

OS Details:

Edition Windows 10 Pro for Workstations
Version 20H2
Experience Windows Feature Experience Pack 120.2212.551.0

Build Box:
Edition: Windows Server 2016 Datacenter
Version 1607

I'll have to get back to you on the sample app. I don't have a build of that atm, but will put that together and report back shortly.
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Re: Enabled Sandbox Segfault Determining it's Functioning -

Postby leeroy » Thu Apr 01, 2021 12:04 am

Well clearly we have broken something... This works fine in the CEFClient app:

Image
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Re: Enabled Sandbox Segfault Determining it's Functioning -

Postby leeroy » Thu Apr 08, 2021 7:24 pm

I understand that there is something broken in my app, however, if someone has any suggestions I would appreciate any feedback.

Windows, using CEF cef_binary_90.2.9+g4d20de0+chromium-90.0.4430.51

I'm going through the process of dropping in the cefclient app example into of our app to try and see where we have gone wrong and we get this same failure with the following call stack.
Code: Select all
00000067c82fece8()   Unknown
    libcef.dll!sandbox::policy::`anonymous namespace'::ConvertToValuesAndRespond(std::__1::unique_ptr<sandbox::PolicyList,std::default_delete<sandbox::PolicyList>> policies, base::OnceCallback<void (base::Value)> response) Line 28   C++
>   [Inline Frame] libcef.dll!base::internal::FunctorTraits<void (*)(std::unique_ptr<policy::CloudPolicyValidatorBase,std::default_delete<policy::CloudPolicyValidatorBase>>, base::OnceCallback<void ()>),void>::Invoke(void(*)(std::__1::unique_ptr<policy::CloudPolicyValidatorBase,std::default_delete<policy::CloudPolicyValidatorBase>>, base::OnceCallback<void ()>) && function, std::__1::unique_ptr<policy::CloudPolicyValidatorBase,std::default_delete<policy::CloudPolicyValidatorBase>> && args, base::OnceCallback<void ()> && args) Line 393   C++
    [Inline Frame] libcef.dll!base::internal::InvokeHelper<0,void>::MakeItSo(void(*)(std::__1::unique_ptr<policy::CloudPolicyValidatorBase,std::default_delete<policy::CloudPolicyValidatorBase>>, base::OnceCallback<void ()>) && functor, std::__1::unique_ptr<policy::CloudPolicyValidatorBase,std::default_delete<policy::CloudPolicyValidatorBase>> && args, base::OnceCallback<void ()> && args) Line 637   C++
    [Inline Frame] libcef.dll!base::internal::Invoker<base::internal::BindState<void (*)(std::unique_ptr<policy::CloudPolicyValidatorBase,std::default_delete<policy::CloudPolicyValidatorBase>>, base::OnceCallback<void ()>),std::unique_ptr<policy::CloudPolicyValidatorBase,std::default_delete<policy::CloudPolicyValidatorBase>>,base::OnceCallback<void ()>>,void ()>::RunImpl(void(*)(std::__1::unique_ptr<policy::CloudPolicyValidatorBase,std::default_delete<policy::CloudPolicyValidatorBase>>, base::OnceCallback<void ()>) && functor, std::__1::tuple<std::unique_ptr<policy::CloudPolicyValidatorBase,std::default_delete<policy::CloudPolicyValidatorBase>>,base::OnceCallback<void ()>> && bound, std::__1::integer_sequence<unsigned long long,0,1>) Line 710   C++
    libcef.dll!base::internal::Invoker<base::internal::BindState<void (*)(std::unique_ptr<policy::CloudPolicyValidatorBase,std::default_delete<policy::CloudPolicyValidatorBase>>, base::OnceCallback<void ()>),std::unique_ptr<policy::CloudPolicyValidatorBase,std::default_delete<policy::CloudPolicyValidatorBase>>,base::OnceCallback<void ()>>,void ()>::RunOnce(base::internal::BindStateBase * base) Line 679   C++
    [Inline Frame] libcef.dll!base::OnceCallback<void ()>::Run() Line 101   C++
    libcef.dll!base::TaskAnnotator::RunTask(const char * trace_event_name, base::PendingTask * pending_task) Line 163   C++
    libcef.dll!base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::DoWorkImpl(base::sequence_manager::LazyNow * continuation_lazy_now) Line 352   C++
    libcef.dll!base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::DoWork() Line 266   C++
    libcef.dll!base::MessagePumpForUI::DoRunLoop() Line 226   C++
    libcef.dll!base::MessagePumpWin::Run(base::MessagePump::Delegate * delegate) Line 83   C++
    libcef.dll!base::sequence_manager::internal::ThreadControllerWithMessagePumpImpl::Run(bool application_tasks_allowed, base::TimeDelta timeout) Line 463   C++
    libcef.dll!base::RunLoop::Run(const base::Location & location) Line 135   C++
    libcef.dll!CefMainRunner::RunMessageLoop() Line 288   C++
    libcef.dll!CefContext::RunMessageLoop() Line 367   C++
    MyApp.exe!CefRunMessageLoop() Line 135   C++
    MyApp.exe!client::MainMessageLoopStd::Run() Line 15   C++
    MyApp.exe!client::`anonymous namespace'::RunMain(HINSTANCE__ * hInstance, int nCmdShow) Line 112   C++
    MyApp.exe!wWinMain(HINSTANCE__ * hInstance, HINSTANCE__ * hPrevInstance, wchar_t * lpCmdLine, int nCmdShow) Line 135   C++



We're dying here:
Code: Select all
static void ConvertToValuesAndRespond(
    std::unique_ptr<PolicyList> policies,
    base::OnceCallback<void(base::Value)> response) {
  base::Value policy_values(base::Value::Type::LIST);
  for (auto&& item : *policies) {
    auto snapshot = base::JSONReader::ReadAndReturnValueWithError( <-- something bad happens... Exception thrown at 0x00000067C82FECE8 in MyApp.exe: 0xC0000005: Access violation executing location 0x00000067C82FECE8.
        item->JsonString(), base::JSON_PARSE_RFC);
    CHECK(snapshot.value);
    policy_values.Append(std::move(snapshot.value.value()));
  }
  std::move(response).Run(std::move(policy_values));
}


Crashes after this renders: Image

Again for the record the cefclient that is built when building CEF works just fine.
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Re: Enabled Sandbox Segfault Determining it's Functioning -

Postby magreenblatt » Thu Apr 08, 2021 7:28 pm

Maybe some of your resources (pak files, etc) are at the wrong version?
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Re: Enabled Sandbox Segfault Determining it's Functioning -

Postby leeroy » Thu Apr 08, 2021 7:41 pm

I can drop the cefclient.exe right beside myapp.exe and cefclient.exe runs just fine. Myapp is built referencing the exact same CEF binaries, pak files... But maybe I'm misunderstanding your question.
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Re: Enabled Sandbox Segfault Determining it's Functioning -

Postby magreenblatt » Thu Apr 08, 2021 9:10 pm

Does your application link against cef_sandbox.lib? Are you using the same executable for sub-processes? What Visual Studio version are you using?
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Re: Enabled Sandbox Segfault Determining it's Functioning -

Postby leeroy » Fri Apr 09, 2021 12:33 pm

At least I thought it was linking against cef_sandbox.lib, but now I question that and yes, using the same executable for sub-processes.

I changed a couple path names and there is some additional logging in the cmake output below, but what is the clearest way to determine I've linked appropriately with cef_sandbox.lib?

Using VS 2019 - 16.9.2
Building on: Microsoft Windows Server 2016 Datacenter - 10.0.14393

Code: Select all
-- Selecting Windows SDK version 10.0.19041.0 to target Windows 10.0.14393.
-- CMAKE_TOOLCHAIN_FILE: [C:/vcpkg/scripts/buildsystems/vcpkg.cmake]
-- VCPKG_DEFAULT_TRIPLET: []
-- VCPKG_TARGET_TRIPLET: [x64-windows-static]
-- CEF_STANDARD_LIBS: [comctl32.lib;rpcrt4.lib;shlwapi.lib;ws2_32.lib]
-- APR_LIBRARIES: [C:/vcpkg/installed/x64-windows-static/debug/lib/apr-1.lib]
-- APR LIBS --- APR_UTIL_LIBRARIES: [] XMLLIB_LIBRARIES: [] APR_LIBRARIES: [C:/vcpkg/installed/x64-windows-static/debug/lib/apr-1.lib] APR_SYSTEM_LIBS: []
-- Boost_INCLUDE_DIRS: [C:/vcpkg/installed/x64-windows-static/include]
-- Boost_LIBRARIES: [optimized;C:/vcpkg/installed/x64-windows-static/lib/boost_filesystem-vc140-mt.lib;debug;C:/vcpkg/installed/x64-windows-static/debug/lib/boost_filesystem-vc140-mt-gd.lib]
-- Adding Sandbox Libraries - USE_SANDBOX: [ON] - [c:/buildbox/win/lib/cef/Debug/cef_sandbox.lib] - [c:/buildbox/win/lib/cef/Release/cef_sandbox.lib] - [Advapi32.lib;dbghelp.lib;Delayimp.
lib;OleAut32.lib;PowrProf.lib;Propsys.lib;psapi.lib;SetupAPI.lib;Shell32.lib;version.lib;wbemuuid.lib;winmm.lib]
-- Manifest Location: [c:/buildbox/win/directories/resources/win]
-- *** CEF CONFIGURATION SETTINGS ***
-- Generator:                    Visual Studio 16 2019
-- Platform:                     Windows
-- Project architecture:         x86_64
-- Binary distribution root:     c:/buildbox/win/lib/cef
-- Visual Studio ATL support:    ON
-- CEF sandbox:                  ON
-- Standard libraries:           comctl32.lib;rpcrt4.lib;shlwapi.lib;ws2_32.lib;Advapi32.lib;dbghelp.lib;Delayimp.lib;OleAut32.lib;PowrProf.lib;Propsys.lib;psapi.lib;SetupAPI.lib;Shell32.lib;version.lib;wbemuuid.lib;winmm.lib
-- Compile defines:              __STDC_CONSTANT_MACROS;__STDC_FORMAT_MACROS;WIN32;_WIN32;_WINDOWS;UNICODE;_UNICODE;WINVER=0x0601;_WIN32_WINNT=0x601;NOMINMAX;WIN32_LEAN_AND_MEAN;_HAS_EXCEPTIONS=0;PSAPI_VERSION=1;CEF_USE_SANDBOX;CEF_USE_ATL
-- Compile defines (Debug):
-- Compile defines (Release):    NDEBUG;_NDEBUG
-- C compile flags:              /MP;/Gy;/GR-;/W4;/WX;/wd4100;/wd4127;/wd4244;/wd4481;/wd4512;/wd4701;/wd4702;/wd4996;/Zi
-- C compile flags (Debug):      /MTd;/RTC1;/Od
-- C compile flags (Release):    /MT;/O2;/Ob2;/GF
-- C++ compile flags:            /MP;/Gy;/GR-;/W4;/WX;/wd4100;/wd4127;/wd4244;/wd4481;/wd4512;/wd4701;/wd4702;/wd4996;/Zi
-- C++ compile flags (Debug):    /MTd;/RTC1;/Od
-- C++ compile flags (Release):  /MT;/O2;/Ob2;/GF
-- Exe link flags:                /MANIFEST:NO;/LARGEADDRESSAWARE
-- Exe link flags (Debug):       /DEBUG
-- Exe link flags (Release):
-- Shared link flags:
-- Shared link flags (Debug):    /DEBUG
-- Shared link flags (Release):
-- CEF Binary files:             chrome_elf.dll;libcef.dll;libEGL.dll;libGLESv2.dll;snapshot_blob.bin;v8_context_snapshot.bin;swiftshader;d3dcompiler_47.dll
-- CEF Resource files:           chrome_100_percent.pak;chrome_200_percent.pak;resources.pak;icudtl.dat;locales
-- Configuring done
-- Generating done
-- Build files have been written to: c:/buildbox
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Re: Enabled Sandbox Segfault Determining it's Functioning -

Postby magreenblatt » Fri Apr 09, 2021 2:15 pm

You can open the sln in Visual Studio and check that cef_sandbox.lib is included in linker libraries (Properties > Linker > Input > Additional Dependencies).

How does your application differ from the CEF sample apps? Are you doing anything differently in the main() function before calling CefExecuteProcess or CefInitialize?
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