Issue 912166 link

Starred by 2 users

Issue metadata

Status:	Started
Owner:	jperaza@chromium.org
Cc:	ynovikov@chromium.org █ kbr@chromium.org jperaza@chromium.org crouleau@chromium.org mark@chromium.org jbudorick@chromium.org
Components:	Internals>GPU>Testing Test>Telemetry
EstimatedDays:	----
NextAction:	----
OS:	Android
Pri:	1
Type:	Bug-Regression

Blocking:
issue 912161

"Problem when trying to gather stack trace" during WebGL test failures on Android

Project Member Reported by ynovikov@chromium.org, Dec 5

Issue description

See issue 912161 for spotted occurrences.
Not sure if related to recent enabling of Crashpad or some other problem.
Since most of these stacks are in catapult, assigning to John for triage, but would appreciate if Ken and Joshua could also take a look.

Example log of the problem:

Timed out. Dumping threads.
********************************************************************************
Stack dump for thread 'TimeoutThread-1-for-MainThread'
********************************************************************************
File: "/b/swarming/w/ir/.swarming_module/lib/python2.7/threading.py", line 778, in __bootstrap
  raise
File: "/b/swarming/w/ir/.swarming_module/lib/python2.7/threading.py", line 855, in __bootstrap_inner
  pass
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/utils/reraiser_thread.py", line 95, in run
  self._exc_info = sys.exc_info()
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/utils/timeout_retry.py", line 151, in <lambda>
  child_thread = reraiser_thread.ReraiserThread(lambda: func(*args, **kwargs),
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/decorators.py", line 47, in impl
  return f(*args, **kwargs)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/app_ui.py", line 203, in _GetRootUiNode
  self._device.ReadFile(dtemp.name, force_pull=True))
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/decorators.py", line 51, in timeout_retry_wrapper
  return impl()
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/decorators.py", line 47, in impl
  return f(*args, **kwargs)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/device_utils.py", line 1161, in RunShellCommand
  output = handle_large_output(cmd, large_output)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/device_utils.py", line 1130, in handle_large_output
  return handle_large_command(cmd)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/device_utils.py", line 1112, in handle_large_command
  return handle_check_return(cmd)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/device_utils.py", line 1103, in handle_check_return
  return run(cmd)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/device_utils.py", line 1099, in run
  return self.adb.Shell(cmd)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/sdk/adb_wrapper.py", line 533, in Shell
  output = self._RunDeviceAdbCmd(args, timeout, retries, check_error=False)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/sdk/adb_wrapper.py", line 316, in _RunDeviceAdbCmd
  check_error=check_error)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/decorators.py", line 51, in timeout_retry_wrapper
  return impl()
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/decorators.py", line 47, in impl
  return f(*args, **kwargs)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/sdk/adb_wrapper.py", line 277, in _RunAdbCmd
  timeout, env=cls._ADB_ENV)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/utils/cmd_helper.py", line 415, in GetCmdStatusAndOutputWithTimeout
  for data in _IterProcessStdout(process, timeout=timeout):
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/utils/cmd_helper.py", line 277, in _IterProcessStdoutFcntl
  [child_fd], [], [], iter_aware_poll_interval)
********************************************************************************
Timed out. Dumping threads.
********************************************************************************
Stack dump for thread 'TimeoutThread-2-for-MainThread'
********************************************************************************
File: "/b/swarming/w/ir/.swarming_module/lib/python2.7/threading.py", line 774, in __bootstrap
  self.__bootstrap_inner()
File: "/b/swarming/w/ir/.swarming_module/lib/python2.7/threading.py", line 801, in __bootstrap_inner
  self.run()
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/utils/reraiser_thread.py", line 93, in run
  self._ret = self._func(*self._args, **self._kwargs)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/utils/timeout_retry.py", line 151, in <lambda>
  child_thread = reraiser_thread.ReraiserThread(lambda: func(*args, **kwargs),
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/decorators.py", line 47, in impl
  return f(*args, **kwargs)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/app_ui.py", line 201, in _GetRootUiNode
  check_return=True)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/decorators.py", line 51, in timeout_retry_wrapper
  return impl()
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/decorators.py", line 47, in impl
  return f(*args, **kwargs)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/device_utils.py", line 1161, in RunShellCommand
  output = handle_large_output(cmd, large_output)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/device_utils.py", line 1130, in handle_large_output
  return handle_large_command(cmd)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/device_utils.py", line 1112, in handle_large_command
  return handle_check_return(cmd)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/device_utils.py", line 1103, in handle_check_return
  return run(cmd)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/device_utils.py", line 1099, in run
  return self.adb.Shell(cmd)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/sdk/adb_wrapper.py", line 533, in Shell
  output = self._RunDeviceAdbCmd(args, timeout, retries, check_error=False)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/sdk/adb_wrapper.py", line 316, in _RunDeviceAdbCmd
  check_error=check_error)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/decorators.py", line 51, in timeout_retry_wrapper
  return impl()
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/decorators.py", line 47, in impl
  return f(*args, **kwargs)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/sdk/adb_wrapper.py", line 277, in _RunAdbCmd
  timeout, env=cls._ADB_ENV)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/utils/cmd_helper.py", line 415, in GetCmdStatusAndOutputWithTimeout
  for data in _IterProcessStdout(process, timeout=timeout):
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/utils/cmd_helper.py", line 277, in _IterProcessStdoutFcntl
  [child_fd], [], [], iter_aware_poll_interval)
********************************************************************************
Timed out. Dumping threads.
********************************************************************************
Stack dump for thread 'TimeoutThread-3-for-MainThread'
********************************************************************************
File: "/b/swarming/w/ir/.swarming_module/lib/python2.7/threading.py", line 774, in __bootstrap
  self.__bootstrap_inner()
File: "/b/swarming/w/ir/.swarming_module/lib/python2.7/threading.py", line 801, in __bootstrap_inner
  self.run()
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/utils/reraiser_thread.py", line 93, in run
  self._ret = self._func(*self._args, **self._kwargs)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/utils/timeout_retry.py", line 151, in <lambda>
  child_thread = reraiser_thread.ReraiserThread(lambda: func(*args, **kwargs),
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/decorators.py", line 47, in impl
  return f(*args, **kwargs)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/app_ui.py", line 201, in _GetRootUiNode
  check_return=True)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/decorators.py", line 51, in timeout_retry_wrapper
  return impl()
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/decorators.py", line 47, in impl
  return f(*args, **kwargs)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/device_utils.py", line 1161, in RunShellCommand
  output = handle_large_output(cmd, large_output)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/device_utils.py", line 1130, in handle_large_output
  return handle_large_command(cmd)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/device_utils.py", line 1112, in handle_large_command
  return handle_check_return(cmd)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/device_utils.py", line 1103, in handle_check_return
  return run(cmd)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/device_utils.py", line 1099, in run
  return self.adb.Shell(cmd)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/sdk/adb_wrapper.py", line 533, in Shell
  output = self._RunDeviceAdbCmd(args, timeout, retries, check_error=False)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/sdk/adb_wrapper.py", line 316, in _RunDeviceAdbCmd
  check_error=check_error)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/decorators.py", line 51, in timeout_retry_wrapper
  return impl()
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/decorators.py", line 47, in impl
  return f(*args, **kwargs)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/sdk/adb_wrapper.py", line 277, in _RunAdbCmd
  timeout, env=cls._ADB_ENV)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/utils/cmd_helper.py", line 415, in GetCmdStatusAndOutputWithTimeout
  for data in _IterProcessStdout(process, timeout=timeout):
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/utils/cmd_helper.py", line 277, in _IterProcessStdoutFcntl
  [child_fd], [], [], iter_aware_poll_interval)
********************************************************************************
Timed out. Dumping threads.
********************************************************************************
Stack dump for thread 'TimeoutThread-4-for-MainThread'
********************************************************************************
File: "/b/swarming/w/ir/.swarming_module/lib/python2.7/threading.py", line 774, in __bootstrap
  self.__bootstrap_inner()
File: "/b/swarming/w/ir/.swarming_module/lib/python2.7/threading.py", line 801, in __bootstrap_inner
  self.run()
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/utils/reraiser_thread.py", line 93, in run
  self._ret = self._func(*self._args, **self._kwargs)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/utils/timeout_retry.py", line 151, in <lambda>
  child_thread = reraiser_thread.ReraiserThread(lambda: func(*args, **kwargs),
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/decorators.py", line 47, in impl
  return f(*args, **kwargs)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/app_ui.py", line 201, in _GetRootUiNode
  check_return=True)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/decorators.py", line 51, in timeout_retry_wrapper
  return impl()
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/decorators.py", line 47, in impl
  return f(*args, **kwargs)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/device_utils.py", line 1161, in RunShellCommand
  output = handle_large_output(cmd, large_output)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/device_utils.py", line 1130, in handle_large_output
  return handle_large_command(cmd)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/device_utils.py", line 1112, in handle_large_command
  return handle_check_return(cmd)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/device_utils.py", line 1103, in handle_check_return
  return run(cmd)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/device_utils.py", line 1099, in run
  return self.adb.Shell(cmd)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/sdk/adb_wrapper.py", line 533, in Shell
  output = self._RunDeviceAdbCmd(args, timeout, retries, check_error=False)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/sdk/adb_wrapper.py", line 316, in _RunDeviceAdbCmd
  check_error=check_error)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/decorators.py", line 51, in timeout_retry_wrapper
  return impl()
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/decorators.py", line 47, in impl
  return f(*args, **kwargs)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/android/sdk/adb_wrapper.py", line 277, in _RunAdbCmd
  timeout, env=cls._ADB_ENV)
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/utils/cmd_helper.py", line 415, in GetCmdStatusAndOutputWithTimeout
  for data in _IterProcessStdout(process, timeout=timeout):
File: "/b/swarming/w/ir/third_party/catapult/devil/devil/utils/cmd_helper.py", line 277, in _IterProcessStdoutFcntl
  [child_fd], [], [], iter_aware_poll_interval)
********************************************************************************
Problem when trying to gather stack trace:
Traceback (most recent call last):
  File "/b/swarming/w/ir/third_party/catapult/telemetry/telemetry/core/exceptions.py", line 72, in __init__
    self._is_valid_dump, trace_output = app.GetStackTrace()
  File "/b/swarming/w/ir/third_party/catapult/telemetry/telemetry/internal/browser/browser.py", line 240, in GetStackTrace
    return self._browser_backend.GetStackTrace()
  File "/b/swarming/w/ir/third_party/catapult/common/py_trace_event/py_trace_event/trace_event_impl/decorators.py", line 52, in traced_function
    return func(*args, **kwargs)
  File "/b/swarming/w/ir/third_party/catapult/telemetry/telemetry/internal/backends/chrome/android_browser_backend.py", line 196, in GetStackTrace
    return self.platform_backend.GetStackTrace()
  File "/b/swarming/w/ir/third_party/catapult/telemetry/telemetry/internal/platform/android_platform_backend.py", line 640, in GetStackTrace
    ret = Decorate('UI dump', '\n'.join(self.GetSystemUi().ScreenDump()))
  File "/b/swarming/w/ir/third_party/catapult/devil/devil/android/app_ui.py", line 212, in ScreenDump
    return self._GetRootUiNode().Dump()
  File "/b/swarming/w/ir/third_party/catapult/devil/devil/android/decorators.py", line 57, in timeout_retry_wrapper
    retry_if_func=retry_if_func)
  File "/b/swarming/w/ir/third_party/catapult/devil/devil/utils/timeout_retry.py", line 158, in Run
    error_log_func=error_log_func)
  File "/b/swarming/w/ir/third_party/catapult/devil/devil/utils/reraiser_thread.py", line 198, in JoinAll
    self._JoinAll(watcher, timeout)
  File "/b/swarming/w/ir/third_party/catapult/devil/devil/utils/reraiser_thread.py", line 163, in _JoinAll
    (len(alive_threads), len(self._threads)))
CommandTimeoutError: Timed out waiting for 1 of 1 threads.

Traceback (most recent call last):
  _RunGpuTest at content/test/gpu/gpu_tests/gpu_integration_test.py:155
    self.RunActualGpuTest(url, *args)
  RunActualGpuTest at content/test/gpu/gpu_tests/webgl_conformance_integration_test.py:195
    getattr(self, test_name)(test_path, *args[1:])
  _RunConformanceTest at content/test/gpu/gpu_tests/webgl_conformance_integration_test.py:284
    self._CheckTestCompletion()
  _CheckTestCompletion at content/test/gpu/gpu_tests/webgl_conformance_integration_test.py:274
    'webglTestHarness._finished', timeout=self._GetTestTimeout())
  traced_function at third_party/catapult/common/py_trace_event/py_trace_event/trace_event_impl/decorators.py:52
    return func(*args, **kwargs)
  WaitForJavaScriptCondition at third_party/catapult/telemetry/telemetry/internal/actions/action_runner.py:263
    return self._tab.WaitForJavaScriptCondition(*args, **kwargs)
  traced_function at third_party/catapult/common/py_trace_event/py_trace_event/trace_event_impl/decorators.py:52
    return func(*args, **kwargs)
  WaitForJavaScriptCondition at third_party/catapult/telemetry/telemetry/internal/browser/web_contents.py:245
    return self._inspector_backend.WaitForJavaScriptCondition(*args, **kwargs)
  traced_function at third_party/catapult/common/py_trace_event/py_trace_event/trace_event_impl/decorators.py:52
    return func(*args, **kwargs)
  WaitForJavaScriptCondition at third_party/catapult/telemetry/telemetry/internal/backends/chrome_inspector/inspector_backend.py:307
    self.GetCurrentConsoleOutputBuffer())
  traced_function at third_party/catapult/common/py_trace_event/py_trace_event/trace_event_impl/decorators.py:52
    return func(*args, **kwargs)
  Inner at third_party/catapult/telemetry/telemetry/internal/backends/chrome_inspector/inspector_backend.py:41
    inspector_backend._ConvertExceptionFromInspectorWebsocket(e)
  traced_function at third_party/catapult/common/py_trace_event/py_trace_event/trace_event_impl/decorators.py:52
    return func(*args, **kwargs)
  Inner at third_party/catapult/telemetry/telemetry/internal/backends/chrome_inspector/inspector_backend.py:38
    return func(inspector_backend, *args, **kwargs)
  GetCurrentConsoleOutputBuffer at third_party/catapult/telemetry/telemetry/internal/backends/chrome_inspector/inspector_backend.py:196
    return self._console.GetCurrentConsoleOutputBuffer(timeout)
  GetCurrentConsoleOutputBuffer at third_party/catapult/telemetry/telemetry/internal/backends/chrome_inspector/inspector_console.py:38
    self._inspector_websocket.DispatchNotifications(timeout)
  DispatchNotifications at third_party/catapult/telemetry/telemetry/internal/backends/chrome_inspector/inspector_websocket.py:156
    self._Receive(timeout)
  _Receive at third_party/catapult/telemetry/telemetry/internal/backends/chrome_inspector/inspector_websocket.py:181
    raise WebSocketException(err)
TimeoutException: Timeout after 300s while waiting for JavaScript:webglTestHarness._finished

Exception thrown when trying to capture console output: TimeoutException('',)

Locals:
  err     : WebSocketTimeoutException('timed out',)
  timeout : 10

Restarting browser due to unexpected test failure

Comment 1 by jperaza@google.com, Dec 5

One of the changes that went along with Crashpad was that non-browser processes aren't restoring old signal handlers after Crashpad finishes dumping the crashed process. This means that tombstones aren't being generated, which seems likely to be related to this and possibly other recently failing tests.

Comment 2 by ynovikov@chromium.org, Dec 5

Summary: "Problem when trying to gather stack trace" during WebGL test failures on Android (was: "Problem when trying to gather stack trace" during WebGL test failures on Nexus 5X)

Happens on other devices as well.
https://ci.chromium.org/p/chromium/builders/luci.chromium.ci/Android%20FYI%20Release%20%28Nexus%209%29/10985

Comment 3 by kbr@chromium.org, Dec 5

jperaza@ is there a plan to fix that issue for all Chrome sub-processes? Is the work tracked under a bug? Should I block another bug on this one? Thanks.

Comment 4 by erikc...@chromium.org, Dec 6

Cc: mark@chromium.org jbudorick@chromium.org
Components: -Infra>Client>Chrome
Owner: ----

Removing Infra>Client>Chrome.

+ mark -- it sounds like we believe that the issues might be related to turning on crashpad? Could you follow up on c#1?

Comment 5 by ericrk@google.com, Dec 7

Owner: mark@chromium.org
Status: Assigned (was: Unconfirmed)

gpu triage: Assigning to mark per #4

Comment 6 by jperaza@chromium.org, Dec 7

Owner: jperaza@chromium.org
Status: Started (was: Assigned)

I think this will be fixed by:
https://chromium-review.googlesource.com/c/chromium/src/+/1361597

Project Member

Comment 7 by bugdroid1@chromium.org, Dec 10

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/d587561ae75deb5e1f310cca81e59ab5970e7e3f

commit d587561ae75deb5e1f310cca81e59ab5970e7e3f
Author: Joshua Peraza <jperaza@chromium.org>
Date: Mon Dec 10 20:29:20 2018

android: Restore crash signal handlers for child processes

The original tombstone producing signal handlers are still used by
tests.

This can be revisited later:
https://bugs.chromium.org/p/chromium/issues/detail?id=912306

Bug: 911678, 912166, 912161
Change-Id: I55c0627bc431c6d61872a60d47423fd99567028f
Reviewed-on: https://chromium-review.googlesource.com/c/1361597
Commit-Queue: Joshua Peraza <jperaza@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
Reviewed-by: Kenneth Russell <kbr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#615230}
[modify] https://crrev.com/d587561ae75deb5e1f310cca81e59ab5970e7e3f/components/crash/content/app/crashpad_linux.cc

Comment 8 by ynovikov@chromium.org, Dec 12

Still happens
https://ci.chromium.org/p/chromium/builders/luci.chromium.ci/Android%20FYI%20Release%20%28Nexus%209%29/11235

Comment 9 by kbr@chromium.org, Dec 12

Blocking: 912161
Components: Tests>Telemetry

One other potential issue:

Seeing timeouts inside Telemetry while attempting to gather a stack trace. Telemetry is trying to dump the UI and that operation is timing out. Our harness doesn't want to attempt to do this.

Example failures:

https://ci.chromium.org/p/chromium/builders/luci.chromium.try/android-marshmallow-arm64-rel/149070
https://chromium-swarm.appspot.com/task?id=41b7c000e7e83d10&refresh=10&show_raw=1

https://ci.chromium.org/p/chromium/builders/luci.chromium.try/android-marshmallow-arm64-rel/149062
https://chromium-swarm.appspot.com/task?id=41b7a71551a0a110&refresh=10&show_raw=1

Relevant stack trace from logs:

  Problem when trying to gather stack trace:
  Traceback (most recent call last):
    File "/b/swarming/w/ir/third_party/catapult/telemetry/telemetry/core/exceptions.py", line 72, in __init__
      self._is_valid_dump, trace_output = app.GetStackTrace()
    File "/b/swarming/w/ir/third_party/catapult/telemetry/telemetry/internal/browser/browser.py", line 240, in GetStackTrace
      return self._browser_backend.GetStackTrace()
    File "/b/swarming/w/ir/third_party/catapult/common/py_trace_event/py_trace_event/trace_event_impl/decorators.py", line 52, in traced_function
      return func(*args, **kwargs)
    File "/b/swarming/w/ir/third_party/catapult/telemetry/telemetry/internal/backends/chrome/android_browser_backend.py", line 196, in GetStackTrace
      return self.platform_backend.GetStackTrace()
    File "/b/swarming/w/ir/third_party/catapult/telemetry/telemetry/internal/platform/android_platform_backend.py", line 640, in GetStackTrace
      ret = Decorate('UI dump', '\n'.join(self.GetSystemUi().ScreenDump()))
    File "/b/swarming/w/ir/third_party/catapult/devil/devil/android/app_ui.py", line 212, in ScreenDump
      return self._GetRootUiNode().Dump()
    File "/b/swarming/w/ir/third_party/catapult/devil/devil/android/decorators.py", line 57, in timeout_retry_wrapper
      retry_if_func=retry_if_func)
    File "/b/swarming/w/ir/third_party/catapult/devil/devil/utils/timeout_retry.py", line 158, in Run
      error_log_func=error_log_func)
    File "/b/swarming/w/ir/third_party/catapult/devil/devil/utils/reraiser_thread.py", line 198, in JoinAll
      self._JoinAll(watcher, timeout)
    File "/b/swarming/w/ir/third_party/catapult/devil/devil/utils/reraiser_thread.py", line 163, in _JoinAll
      (len(alive_threads), len(self._threads)))
  CommandTimeoutError: Timed out waiting for 1 of 1 threads.


We need a way to configure the call to self._GetRootUiNode().Dump() and not do that in our test harness.

Comment 10 by kbr@chromium.org, Dec 12

Cc: ynovikov@chromium.org crouleau@chromium.org perezju@chromium.org

 Issue 914085  has been merged into this issue.

Comment 11 by perezju@chromium.org, Dec 13

Cc: -perezju@chromium.org

Comment 12 by benhenry@google.com, Jan 16 (6 days ago)

Components: Test>Telemetry

Comment 13 by benhenry@google.com, Jan 16 (6 days ago)

Components: -Tests>Telemetry

►

Issue 912166 link

Issue metadata

"Problem when trying to gather stack trace" during WebGL test failures on Android

Issue description

Comment 1 by jperaza@google.com, Dec 5

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Comment 2 by ynovikov@chromium.org, Dec 5

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Comment 12 by benhenry@google.com, Jan 16 (6 days ago)

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Comment 13 by benhenry@google.com, Jan 16 (6 days ago)

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