We are seeing failures of these two benchmarks on 

Mac 10.10 Perf (4): 
https://uberchromegw.corp.google.com/i/chromium.perf/builders/Mac%2010.10%20Perf%20%284%29/builds/6492

Mac Retina Perf (4): 
https://uberchromegw.corp.google.com/i/chromium.perf/builders/Mac%20Retina%20Perf%20%284%29/builds/6536


Mac HDD Perf (4): 
https://uberchromegw.corp.google.com/i/chromium.perf/builders/Mac%20HDD%20Perf%20%284%29/builds/3688

Mac Pro 10.11 Perf
https://chromium-swarm.appspot.com/user/task/32578b567a440e10

Mac Air 10.11 Perf
https://chromium-swarm.appspot.com/user/task/3257255014be0710



We are seeing a similar stack trace for most of them where the test is timing out, but the browser log is showing errors with memory_dump_manager.cc.  


Link to a failing log on Mac 10.10 Perf: 
https://uberchromegw.corp.google.com/i/chromium.perf/builders/Mac%2010.10%20Perf%20%284%29/builds/6492/steps/v8.browsing_desktop/logs/stdio

Relevant stack trace: 

INFO:root:*************** BROWSER STANDARD OUTPUT ***************
INFO:root:2016-11-07 10:57:15.215 Google Chrome[22675:178469] NSWindow warning: adding an unknown subview: <FullSizeContentView: 0x7fe5984b1670>
2016-11-07 10:57:15.216 Google Chrome[22675:178469] Call stack:
(
    "+callStackSymbols disabled for performance reasons"
)
[22675:1299:1107/105719:ERROR:memory_dump_manager.cc(573)] Disabling MemoryDumpProvider "ContextProviderCommandBuffer". Dump failed multiple times consecutively.
[22681:17155:1107/105719:ERROR:memory_dump_manager.cc(573)] Disabling MemoryDumpProvider "ContextProviderCommandBuffer". Dump failed multiple times consecutively.
[22675:1299:1107/105719:ERROR:memory_dump_manager.cc(573)] Disabling MemoryDumpProvider "ContextProviderCommandBuffer". Dump failed multiple times consecutively.
A Parser-blocking, cross-origin script, http://aax.amazon-adsystem.com/e/dtb/bid?src=3276&u=http%3A%2F%2Fwww.12news.com%2Fnews%2Flocal%2Farizona%2Flargest-us-measles-outbreak-in-arizona-after-people-refused-vaccinations%2F266726754&cb=4620000, is invoked via document.write. This may be blocked by the browser if the device has poor network connectivity. See https://www.chromestatus.com/feature/5718547946799104 for more details.
A Parser-blocking, cross-origin script, http://aax.amazon-adsystem.com/e/dtb/bid?src=3276&u=http%3A%2F%2Fwww.12news.com%2Fnews%2Flocal%2Farizona%2Flargest-us-measles-outbreak-in-arizona-after-people-refused-vaccinations%2F266726754&cb=4620000, is invoked via document.write. This may be blocked by the browser if the device has poor network connectivity. See https://www.chromestatus.com/feature/5718547946799104 for more details.
[22681:1299:1107/105728:ERROR:memory_dump_manager.cc(573)] Disabling MemoryDumpProvider "ContextProviderCommandBuffer". Dump failed multiple times consecutively.
[22681:1299:1107/105728:ERROR:memory_dump_manager.cc(573)] Disabling MemoryDumpProvider "ContextProviderCommandBuffer". Dump failed multiple times consecutively.

INFO:root:*********** END OF BROWSER STANDARD OUTPUT ************
INFO:root:********************* BROWSER LOG *********************
INFO:root:No log file
INFO:root:***************** END OF BROWSER LOG ******************
Traceback (most recent call last):
  File "/b/c/b/Mac_10_10_Perf__4_/src/third_party/catapult/telemetry/telemetry/internal/story_runner.py", line 87, in _RunStoryAndProcessErrorIfNeeded
    state.RunStory(results)
  File "/b/c/b/Mac_10_10_Perf__4_/src/third_party/catapult/common/py_trace_event/py_trace_event/trace_event_impl/decorators.py", line 75, in traced_function
    return func(*args, **kwargs)
  File "/b/c/b/Mac_10_10_Perf__4_/src/third_party/catapult/telemetry/telemetry/page/shared_page_state.py", line 299, in RunStory
    self._current_page.Run(self)
  File "/b/c/b/Mac_10_10_Perf__4_/src/third_party/catapult/telemetry/telemetry/page/__init__.py", line 109, in Run
    self.RunPageInteractions(action_runner)
  File "/b/c/b/Mac_10_10_Perf__4_/src/tools/perf/page_sets/system_health/system_health_story.py", line 112, in RunPageInteractions
    self._DidLoadDocument(action_runner)
  File "/b/c/b/Mac_10_10_Perf__4_/src/tools/perf/page_sets/system_health/browsing_stories.py", line 74, in _DidLoadDocument
    self._ScrollMainPage(action_runner)
  File "/b/c/b/Mac_10_10_Perf__4_/src/tools/perf/page_sets/system_health/browsing_stories.py", line 83, in _ScrollMainPage
    action_runner.tab.WaitForDocumentReadyStateToBeComplete()
  File "/b/c/b/Mac_10_10_Perf__4_/src/third_party/catapult/common/py_trace_event/py_trace_event/trace_event_impl/decorators.py", line 75, in traced_function
    return func(*args, **kwargs)
  File "/b/c/b/Mac_10_10_Perf__4_/src/third_party/catapult/telemetry/telemetry/internal/browser/web_contents.py", line 76, in WaitForDocumentReadyStateToBeComplete
    'document.readyState == "complete"', timeout)
  File "/b/c/b/Mac_10_10_Perf__4_/src/third_party/catapult/common/py_trace_event/py_trace_event/trace_event_impl/decorators.py", line 75, in traced_function
    return func(*args, **kwargs)
  File "/b/c/b/Mac_10_10_Perf__4_/src/third_party/catapult/telemetry/telemetry/internal/browser/web_contents.py", line 142, in WaitForJavaScriptExpression
    e.message + '\n' + debug_message)
TimeoutException: Timed out while waiting 90s for IsJavaScriptExpressionTrue.



Ulan can you please investigate and reassign if necessary?