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Issue 671049 link

Starred by 3 users
Status: WontFix
Owner:
█ kbr@chromium.org
OOO until 2019-01-24
Closed: Jan 2017
Cc:
ynovikov@chromium.org
kainino@chromium.org
eyaich@chromium.org
nedngu...@google.com
zmo@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: Mac
Pri: 1
Type: Bug-Regression

Blocked on:
issue 596622
Blocking:
issue 663601
issue 682834



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Symbolization of GPU process crashes in Telemetry harness isn't working on macOS any more

Project Member Reported by kbr@chromium.org, Dec 5 2016 
In this run:

https://build.chromium.org/p/tryserver.chromium.mac/builders/mac_chromium_rel_ng/builds/347220

The GPU process crashed and left a minidump, but the logic which attempts to symbolize all unsymbolized minidumps isn't working any more. Here's the log. It looks like some methods are being called multiple times, and the accounting about when minidumps are considered to be symbolized is wrong.

WebglConformance_conformance_ogles_GL_tan_tan_001_to_006 (gpu_tests.webgl_conformance_integration_test.WebGLConformanceIntegrationTest) ... Received signal 11 <unknown> 000000000000
 [0x0001091d6026]
 [0x7fff8aa0352a]
 [0x000000003c00]
 [0x00010e4bca14]
 [0x00010e4bc5e0]
 [0x00010e4fcb4f]
 [0x00010e4b515f]
 [0x00010e4b54ec]
 [0x00010d781b05]
 [0x00010d31515c]
 [0x00010db8b1fa]
 [0x00010db8b457]
 [0x00010db6d003]
 [0x00010db6cf0e]
 [0x00010d5bb822]
 [0x00010d5daf47]
 [0x00010c905955]
 [0x00010c906396]
 [0x00010c8d69c1]
 [0x00010c8d8a8a]
 [0x00010c8d5475]
 [0x00010c8d4980]
 [0x00010c8dab78]
 [0x00010c8daf1b]
 [0x0001091d6891]
 [0x00010cae3a92]
 [0x00010cae20ba]
 [0x00010cae4ef4]
 [0x0001091d6891]
 [0x000109211259]
 [0x00010921161c]
 [0x000109211b13]
 [0x000109215b57]
 [0x0001091fb1da]
 [0x000109215524]
 [0x7fff8b824881]
 [0x7fff8b803fbc]
 [0x7fff8b8034df]
 [0x7fff8b802ed8]
 [0x7fff8fa7bed9]
 [0x0001092164be]
 [0x0001092159a7]
 [0x000109210fa2]
 [0x000109246763]
 [0x00010e70f203]
 [0x000108bc22a7]
 [0x000108bc1306]
 [0x000106dc7e8c]
 [0x000106b90daa]
 [0x7fff8ac4b5ad]
[end of stack trace]
(INFO) 2016-12-02 15:56:27,073 desktop_browser_backend._GetAllCrashpadMinidumps:368  Found crashpad_database_util
(INFO) 2016-12-02 15:56:27,087 desktop_browser_backend.GetStackTrace:542  Minidump found: /b/s/w/itVbsSjJ/tmpypmGn2/completed/52314e9a-c469-4268-8d44-905c06c38877.dmp
(INFO) 2016-12-02 15:56:27,087 cloud_storage.Insert:312  Uploading /b/s/w/itVbsSjJ/tmpypmGn2/completed/52314e9a-c469-4268-8d44-905c06c38877.dmp to gs://chrome-telemetry-output/minidump-2016-12-02_15-56-27-773063.dmp
(INFO) 2016-12-02 15:56:28,861 cloud_storage._GetLocked:274  Downloading gs://chromium-telemetry/binary_dependencies/minidump_stackwalk_76c5983fc9e9316a9d4251ba3e68b955c4fc9bf3 to /b/s/w/iryWxKy2/third_party/catapult/telemetry/telemetry/internal/bin/mac/x86_64/minidump_stackwalk
(INFO) 2016-12-02 15:56:29,769 desktop_browser_backend.GenerateBreakpadSymbols:79  Dumping breakpad symbols.
(INFO) 2016-12-02 15:56:29,769 cloud_storage._GetLocked:274  Downloading gs://chromium-telemetry/binary_dependencies/minidump_dump_c39bd7a3b9fa6279893b2d759045699d79ce4dcb to /b/s/w/iryWxKy2/third_party/catapult/telemetry/telemetry/internal/bin/mac/x86_64/minidump_dump
(INFO) 2016-12-02 15:56:42,394 desktop_browser_backend._GetAllCrashpadMinidumps:368  Found crashpad_database_util
Can't get standard output with --show-stdout

Traceback (most recent call last):
  _RunGpuTest at content/test/gpu/gpu_tests/gpu_integration_test.py:78
    self.RunActualGpuTest(url, *args)
  RunActualGpuTest at content/test/gpu/gpu_tests/webgl_conformance_integration_test.py:196
    getattr(self, test_name)(test_path, *args[1:])
  _RunConformanceTest at content/test/gpu/gpu_tests/webgl_conformance_integration_test.py:209
    self._NavigateTo(test_path, conformance_harness_script)
  _NavigateTo at content/test/gpu/gpu_tests/webgl_conformance_integration_test.py:200
    self.tab.Navigate(url, script_to_evaluate_on_commit=harness_script)
  traced_function at third_party/catapult/common/py_trace_event/py_trace_event/trace_event_impl/decorators.py:52
    return func(*args, **kwargs)
  Navigate at third_party/catapult/telemetry/telemetry/internal/browser/web_contents.py:258
    self._inspector_backend.Navigate(url, script_to_evaluate_on_commit, timeout)
  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:36
    return func(inspector_backend, *args, **kwargs)
  Navigate at third_party/catapult/telemetry/telemetry/internal/backends/chrome_inspector/inspector_backend.py:175
    self._page.Navigate(url, script_to_evaluate_on_commit, timeout)
  Navigate at third_party/catapult/telemetry/telemetry/internal/backends/chrome_inspector/inspector_page.py:125
    self.WaitForNavigate(timeout)
  WaitForNavigate at third_party/catapult/telemetry/telemetry/internal/backends/chrome_inspector/inspector_page.py:94
    self._inspector_websocket.DispatchNotifications(remaining_time)
  DispatchNotifications at third_party/catapult/telemetry/telemetry/internal/backends/chrome_inspector/inspector_websocket.py:134
    self._Receive(timeout)
  _Receive at third_party/catapult/telemetry/telemetry/internal/backends/chrome_inspector/inspector_websocket.py:166
    self._HandleNotification(result)
  _HandleNotification at third_party/catapult/telemetry/telemetry/internal/backends/chrome_inspector/inspector_websocket.py:179
    self._domain_handlers[domain_name](result)
  traced_function at third_party/catapult/common/py_trace_event/py_trace_event/trace_event_impl/decorators.py:52
    return func(*args, **kwargs)
  _HandleInspectorDomainNotification at third_party/catapult/telemetry/telemetry/internal/backends/chrome_inspector/inspector_backend.py:365
    raise exception
DevtoolsTargetCrashException: <unprintable DevtoolsTargetCrashException object>

Locals:
  exception : DevtoolsTargetCrashException('Devtools target crashed',)
  res       : {u'params': {}, u'method': u'Inspector.targetCrashed'}

(INFO) 2016-12-02 15:56:42,408 desktop_browser_backend._GetAllCrashpadMinidumps:368  Found crashpad_database_util
(ERROR) 2016-12-02 15:56:42,419 gpu_integration_test._SymbolizeUnsymbolizedMinidumps:148  No minidump paths to symbolize
(INFO) 2016-12-02 15:56:42,420 desktop_browser_backend._GetAllCrashpadMinidumps:368  Found crashpad_database_util
(WARNING) 2016-12-02 15:56:42,430 gpu_integration_test._RestartBrowser:56  Restarting browser due to unexpected test failure

Comment 1 by kbr@chromium.org, Dec 5 2016

Blocking: 596622

Comment 2 by danakj@chromium.org, Dec 16 2016 

P1 bug ping, what's the next steps here?

Comment 3 by eyaich@chromium.org, Dec 16 2016 

So it is the calling code that determines how many times it calls the telemetry API _GetAllUnsymbolizedMinidumpPaths, but I am trying to understand the motivation for just the unsymbolized ones?  I know I implemented this a while back, but is it just because we assume those are the ones for our recent crash because they haven't been retrieved and symbolized yet?

One thing I never nailed down when trying to debug the flakiness in my integration test of this code, was the state of minidumps, how long they last, and how different runs of telemetry interact with this database.  It seemed like sometimes between runs of the test it would pick up old minidump paths.  

I know there are a large number of issues around stack traces and symbolizing, and I am trying to at least document how chrome handles crashes, how telemetry currently handles them and all the outstanding issues, but I think at the very least a little more logging in desktop_browser_backend.py might help give us some more info about what is going on.  ie you call GetAllUnsymbolizedMinidumpPaths, but maybe print out all the paths there, symbolized or not with timestamps?

Comment 4 by eyaich@chromium.org, Dec 16 2016 

Also, is this a flaky failure or is this consistent?  Are there any cases where we are accurately getting the minidump, or is this always failing on the mac platform?

Comment 5 by kbr@chromium.org, Dec 19 2016

Blocking: -596622

Comment 6 by kbr@chromium.org, Dec 19 2016

Blockedon: 596622

Comment 7 by kbr@chromium.org, Dec 20 2016 

The calling code attempts to symbolize the unsymbolized minidumps until there aren't any more. The rationale is that GPU process crashes might result in more than one minidump per test, and/or that a test failure wouldn't necessarily trigger Telemetry's minidump symbolization. At least, in the past, it didn't.

I think that this is working at least in some cases. This flaky failure of WebglConformance_deqp_functional_gles3_texturefiltering_2d_combinations_00 :

https://build.chromium.org/p/tryserver.chromium.mac/builders/mac_optional_gpu_tests_rel/builds/5859
https://chromium-swarm.appspot.com/task?id=3333f8b5b8f1cf10&refresh=10&show_raw=1

yielded the following log, which points to Issue 663601:


WebglConformance_deqp_functional_gles3_texturefiltering_2d_combinations_00 (gpu_tests.webgl_conformance_integration_test.WebGLConformanceIntegrationTest) ... Received signal 11 SEGV_MAPERR 0000ffffffff
[0x00010f119f06]
[0x7fff91a8e52a]
[0x7fff9024c796]
[0x7fff901dbe3c]
[0x7fff926f33dc]
[0x7fff926f2f63]
[0x7fff926f1582]
[0x7fff926ef341]
[end of stack trace]
[14779:1295:1219/233925.197715:INFO:CONSOLE(0)] "WebGL: CONTEXT_LOST_WEBGL: loseContext: context lost", source: http://127.0.0.1:53148/third_party/webgl/src/sdk/tests/deqp/functional/gles3/texturefiltering/2d_combinations_00.html?webglVersion=2 (0)

...

(INFO) 2016-12-19 23:39:25,679 desktop_browser_backend._GetAllCrashpadMinidumps:368 Found crashpad_database_util
(INFO) 2016-12-19 23:39:25,693 desktop_browser_backend._GetAllCrashpadMinidumps:368 Found crashpad_database_util
(ERROR) 2016-12-19 23:39:25,704 gpu_integration_test._SymbolizeUnsymbolizedMinidumps:146 Symbolizing minidump paths: ['/b/s/w/itB8s0N4/tmp1ZtBkx/completed/66f87ab2-59eb-40a0-af1d-f3b55dfa6629.dmp']
(INFO) 2016-12-19 23:39:25,704 desktop_browser_backend._GetAllCrashpadMinidumps:368 Found crashpad_database_util
(INFO) 2016-12-19 23:39:25,715 desktop_browser_backend._GetAllCrashpadMinidumps:368 Found crashpad_database_util
(INFO) 2016-12-19 23:39:25,726 cloud_storage.Insert:312 Uploading /b/s/w/itB8s0N4/tmp1ZtBkx/completed/66f87ab2-59eb-40a0-af1d-f3b55dfa6629.dmp to gs://chrome-telemetry-output/minidump-2016-12-19_23-39-25-995847.dmp
(INFO) 2016-12-19 23:39:27,239 cloud_storage._GetLocked:274 Downloading gs://chromium-telemetry/binary_dependencies/minidump_stackwalk_76c5983fc9e9316a9d4251ba3e68b955c4fc9bf3 to /b/s/w/irwOGdhH/third_party/catapult/telemetry/telemetry/internal/bin/mac/x86_64/minidump_stackwalk
(INFO) 2016-12-19 23:39:27,918 desktop_browser_backend.GenerateBreakpadSymbols:79 Dumping breakpad symbols.
(INFO) 2016-12-19 23:39:27,919 cloud_storage._GetLocked:274 Downloading gs://chromium-telemetry/binary_dependencies/minidump_dump_c39bd7a3b9fa6279893b2d759045699d79ce4dcb to /b/s/w/irwOGdhH/third_party/catapult/telemetry/telemetry/internal/bin/mac/x86_64/minidump_dump
(ERROR) 2016-12-19 23:39:40,483 gpu_integration_test._SymbolizeUnsymbolizedMinidumps:154 Symbolized minidump:
Operating system: Mac OS X
10.11.6 15G31
CPU: amd64
family 6 model 70 stepping 1
8 CPUs

GPU: UNKNOWN

Crash reason: EXC_BAD_ACCESS / KERN_INVALID_ADDRESS
Crash address: 0xffffffff
Process uptime: 260 seconds

Thread 3 (crashed)
0 QuartzCore + 0xc211
rax = 0x00007faeaa011800 rdx = 0x000000000000000b
rcx = 0x0000000125805400 rbx = 0x00000000ffffffff
rsi = 0x00000000ffffffff rdi = 0x0000000125805000
rbp = 0x0000700000199e10 rsp = 0x0000700000199df0
r8 = 0x00007faeaa2fbc00 r9 = 0x0000000000000003
r10 = 0x000000000010e000 r11 = 0x000000006667f2f4
r12 = 0x00007faeaa011800 r13 = 0x00007faeb193d9e0
r14 = 0x00000001284365e0 r15 = 0x000000000000000b
rip = 0x00007fff901c2211
Found by: given as instruction pointer in context
1 QuartzCore + 0x25e3c
rbp = 0x0000700000199e50 rsp = 0x0000700000199e20
rip = 0x00007fff901dbe3c
Found by: previous frame's frame pointer
2 libsystem_pthread.dylib + 0x53dc
rbp = 0x0000700000199eb0 rsp = 0x0000700000199e60
rip = 0x00007fff926f33dc
Found by: previous frame's frame pointer
3 libsystem_pthread.dylib + 0x4f63
rbp = 0x0000700000199f00 rsp = 0x0000700000199ec0
rip = 0x00007fff926f2f63
Found by: previous frame's frame pointer
4 libsystem_pthread.dylib + 0x3582
rbp = 0x0000700000199f50 rsp = 0x0000700000199f10
rip = 0x00007fff926f1582
Found by: previous frame's frame pointer
5 libsystem_pthread.dylib + 0x1341
rbp = 0x0000700000199f78 rsp = 0x0000700000199f60
rip = 0x00007fff926ef341
Found by: previous frame's frame pointer
6 libdispatch.dylib + 0x5aa5
rsp = 0x000070000019a030 rip = 0x00007fff91a63aa5
Found by: stack scanning

Thread 0
0 libsystem_kernel.dylib + 0x10f72
rax = 0x000000000100001f rdx = 0x0000000000000000
rcx = 0x00007fff53198dc8 rbx = 0x00000000ffffffff
rsi = 0x0000000007000806 rdi = 0x00007fff53198f30
rbp = 0x00007fff53198e10 rsp = 0x00007fff53198dc8
r8 = 0x000000000000260b r9 = 0x00000000ffffffff
r10 = 0x0000000000000c00 r11 = 0x0000000000000206
r12 = 0x0000000000000c00 r13 = 0x0000000000000000
r14 = 0x00007fff53198f30 r15 = 0x000000000000260b
rip = 0x00007fff9e632f72
Found by: given as instruction pointer in context
1 CoreFoundation + 0x8a1c4
rbp = 0x00007fff53198e80 rsp = 0x00007fff53198e20
rip = 0x00007fff992841c4
Found by: previous frame's frame pointer
2 CoreFoundation + 0x8968c
rbp = 0x00007fff53199b60 rsp = 0x00007fff53198e90
rip = 0x00007fff9928368c
Found by: previous frame's frame pointer
3 CoreFoundation + 0x88ed8
rbp = 0x00007fff53199bc0 rsp = 0x00007fff53199b70
rip = 0x00007fff99282ed8
Found by: previous frame's frame pointer
4 Chromium Framework!__ZN4base20MessagePumpCFRunLoop5DoRunEPNS_11MessagePump8DelegateE + 0x4f
rbp = 0x00007fff53199c00 rsp = 0x00007fff53199bd0
rip = 0x000000010f15b89f
Found by: previous frame's frame pointer
5 Chromium Framework!__ZN4base24MessagePumpCFRunLoopBase3RunEPNS_11MessagePump8DelegateE + 0x77
rbp = 0x00007fff53199c30 rsp = 0x00007fff53199c10
rip = 0x000000010f15b1e7
Found by: previous frame's frame pointer
6 Chromium Framework!__ZN4base11MessageLoop10RunHandlerEv + 0x16b
rbp = 0x00007fff53199d90 rsp = 0x00007fff53199c40
rip = 0x000000010f1568bb
Found by: previous frame's frame pointer
7 Chromium Framework!__ZN4base7RunLoop3RunEv + 0x89
rbp = 0x00007fff53199ee0 rsp = 0x00007fff53199da0
rip = 0x000000010f18ccc9
Found by: previous frame's frame pointer
8 Chromium Framework!__ZN7content7GpuMainERKNS_18MainFunctionParamsE + 0x3bd
rbp = 0x00007fff5319a420 rsp = 0x00007fff53199ef0
rip = 0x00000001128d750d
Found by: previous frame's frame pointer
9 Chromium Framework!__ZN7content21ContentMainRunnerImpl3RunEv + 0x210
rbp = 0x00007fff5319a5a0 rsp = 0x00007fff5319a430
rip = 0x000000010eaffb40
Found by: previous frame's frame pointer
10 Chromium Framework!__ZN7content11ContentMainERKNS_17ContentMainParamsE + 0x36
rbp = 0x00007fff5319a5c0 rsp = 0x00007fff5319a5b0
rip = 0x000000010eafebd6
Found by: previous frame's frame pointer
11 Chromium Framework!_ChromeMain + 0x4b
rbp = 0x00007fff5319a640 rsp = 0x00007fff5319a5d0
rip = 0x000000010cc9cdab
Found by: previous frame's frame pointer
12 Chromium Helper!_main + 0x20a
rbp = 0x00007fff5319a690 rsp = 0x00007fff5319a650
rip = 0x000000010ca65daa
Found by: previous frame's frame pointer
13 libdyld.dylib + 0x35ad
rbp = 0x00007fff5319a6a8 rsp = 0x00007fff5319a6a0
rip = 0x00007fff991f65ad
Found by: previous frame's frame pointer
14 libdyld.dylib + 0x35ad
rbp = 0x00007fff5319a6a8 rsp = 0x00007fff5319a6a8
rip = 0x00007fff991f65ad
Found by: stack scanning

Thread 1
0 libsystem_kernel.dylib + 0x17efa
rax = 0x0000000002000176 rdx = 0x0000000000000000
rcx = 0x0000700000093598 rbx = 0x00007fff79466400
rsi = 0x0000000000000000 rdi = 0x0000000000000003
rbp = 0x0000700000093630 rsp = 0x0000700000093598
r8 = 0x0000000000000001 r9 = 0x0000000000000000
r10 = 0x00007000000935b8 r11 = 0x0000000000000246
r12 = 0x0000700000093600 r13 = 0x00007fff79466440
r14 = 0x00007000000935b8 r15 = 0x00007fff79466480
rip = 0x00007fff9e639efa
Found by: given as instruction pointer in context
1 libdispatch.dylib + 0x7dcd
rbp = 0x0000700000093e40 rsp = 0x0000700000093640
rip = 0x00007fff91a65dcd
Found by: previous frame's frame pointer

Thread 2
0 libsystem_kernel.dylib + 0x17eca
rax = 0x0000000000000001 rdx = 0x0000000000000000
rcx = 0x000070000099c7e8 rbx = 0x00007faeaa848b50
rsi = 0x00007faeab024400 rdi = 0x000000000000000e
rbp = 0x000070000099c830 rsp = 0x000070000099c7e8
r8 = 0x0000000000000040 r9 = 0x0000000000000000
r10 = 0x00007faeab026400 r11 = 0x0000000000000246
r12 = 0x00007faeaa848b20 r13 = 0x0000000000000000
r14 = 0x00007faeab026400 r15 = 0x00007faeaa848b40
rip = 0x00007fff9e639eca
Found by: given as instruction pointer in context
1 Chromium Framework!_event_base_loop + 0x2ad
rbp = 0x000070000099c8b0 rsp = 0x000070000099c840
rip = 0x000000010f2211ed
Found by: previous frame's frame pointer
2 Chromium Framework!__ZN4base19MessagePumpLibevent3RunEPNS_11MessagePump8DelegateE + 0x1cf
rbp = 0x000070000099c920 rsp = 0x000070000099c8c0
rip = 0x000000010f15a6bf
Found by: previous frame's frame pointer
3 Chromium Framework!__ZN4base11MessageLoop10RunHandlerEv + 0x16b
rbp = 0x000070000099ca80 rsp = 0x000070000099c930
rip = 0x000000010f1568bb
Found by: previous frame's frame pointer
4 Chromium Framework!__ZN4base7RunLoop3RunEv + 0x89
rbp = 0x000070000099cbd0 rsp = 0x000070000099ca90
rip = 0x000000010f18ccc9
Found by: previous frame's frame pointer
5 Chromium Framework!__ZN4base6Thread3RunEPNS_7RunLoopE + 0xcd
rbp = 0x000070000099cd30 rsp = 0x000070000099cbe0
rip = 0x000000010f1d234d
Found by: previous frame's frame pointer
6 Chromium Framework!__ZN4base6Thread10ThreadMainEv + 0x3a2
rbp = 0x000070000099cec0 rsp = 0x000070000099cd40
rip = 0x000000010f1d2902
Found by: previous frame's frame pointer
7 Chromium Framework!__ZN4base12_GLOBAL__N_110ThreadFuncEPv + 0x5f
rbp = 0x000070000099cef0 rsp = 0x000070000099ced0
rip = 0x000000010f1c883f
Found by: previous frame's frame pointer
8 libsystem_pthread.dylib + 0x399d
rbp = 0x000070000099cf10 rsp = 0x000070000099cf00
rip = 0x00007fff926f199d
Found by: previous frame's frame pointer
9 libsystem_pthread.dylib + 0x391a
rbp = 0x000070000099cf50 rsp = 0x000070000099cf20
rip = 0x00007fff926f191a
Found by: previous frame's frame pointer
10 libsystem_pthread.dylib + 0x1351
rbp = 0x000070000099cf78 rsp = 0x000070000099cf60
rip = 0x00007fff926ef351
Found by: previous frame's frame pointer
11 Chromium Framework!__ZN4base14PlatformThread6DetachENS_20PlatformThreadHandleE + 0x70
rsp = 0x000070000099d030 rip = 0x000000010f1c87e0
Found by: stack scanning

Loaded modules:
0x10ca65000 - 0x10ca65fff Chromium Helper 0.0.0.0 (main)
0x10cc9a000 - 0x1160b3fff Chromium Framework 2958.0.0.0
0x120078000 - 0x1200affff CoreMIDI 73.0.0.0
0x1200d8000 - 0x1200ebfff GameController 1.0.0.0
0x1200fd000 - 0x120116fff libexpat.1.dylib 8.0.0.0
0x1248b5000 - 0x124e0cfff AppleIntelHD5000GraphicsGLDriver 0.0.0.0
0x125008000 - 0x1250bcfff AMDRadeonX4000GLDriver 0.0.0.0
0x1250d4000 - 0x1255affff ATIRadeonX4000SCLib.dylib 1.0.0.0
0x125814000 - 0x1259e5fff AppleIntelHD5000GraphicsVADriver 0.0.0.0
0x125a80000 - 0x125ad9fff AMDRadeonVADriver 0.0.0.0
0x125b74000 - 0x125b76fff AppleIntelHSWVA 0.0.0.0
0x127a85000 - 0x127b87fff AMDMTLBronzeDriver 0.0.0.0
0x127bcc000 - 0x127c32fff AppleIntelHD5000GraphicsMTLDriver 0.0.0.0
0x7fff602e3000 - 0x7fff6031afff dyld 0.0.0.0
0x7fff87f00000 - 0x7fff87f07fff libcompiler_rt.dylib 62.0.0.0
0x7fff87f08000 - 0x7fff87fb8fff Backup 960.5.3.0
0x7fff87fb9000 - 0x7fff87fd4fff ApplePushService 1.0.0.0
0x7fff88772000 - 0x7fff8879bfff libxpc.dylib 765.50.8.0
0x7fff887b7000 - 0x7fff887c2fff DirectoryService 1.0.0.0
0x7fff887ca000 - 0x7fff88801fff LDAP 2.4.0.0
0x7fff88802000 - 0x7fff88851fff OpenCL 1.0.0.0
0x7fff8892b000 - 0x7fff88a1bfff libJP2.dylib 1.0.0.0
0x7fff88a1c000 - 0x7fff88a4bfff DictionaryServices 1.0.0.0
0x7fff88a62000 - 0x7fff88a62fff libkeymgr.dylib 28.0.0.0
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0x7fff91a8c000 - 0x7fff91a94fff libsystem_platform.dylib 74.40.2.0
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0x7fff991fa000 - 0x7fff99670fff CoreFoundation 1258.1.0.0 (WARNING: No symbols, CoreFoundation, 943A1383DA6A3DC0ABCDD9AEB3D0D34D0)
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0x7fff9d117000 - 0x7fff9d128fff libcmph.dylib 1.0.0.0
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0x7fff9d3ed000 - 0x7fff9d3f2fff DiskArbitration 1.0.0.0
0x7fff9d3f3000 - 0x7fff9d40ffff libextension.dylib 1.0.0.0
0x7fff9d410000 - 0x7fff9d41efff ToneLibrary 1.0.0.0
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0x7fff9d427000 - 0x7fff9d433fff OpenDirectory 1.0.0.0
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0x7fff9d521000 - 0x7fff9d545fff MultitouchSupport 304.12.0.0
0x7fff9d546000 - 0x7fff9d54bfff ImageCapture 5.0.0.0
0x7fff9d687000 - 0x7fff9d71dfff ColorSync 4.7.0.0
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0x7fff9e234000 - 0x7fff9e24dfff OpenScripting 1.0.0.0
0x7fff9e365000 - 0x7fff9e3b3fff libcurl.4.dylib 8.0.0.0
0x7fff9e3b4000 - 0x7fff9e3ecfff RemoteViewServices 1.0.0.0
0x7fff9e3f2000 - 0x7fff9e4cbfff CoreMedia 1.0.0.0
0x7fff9e4cc000 - 0x7fff9e4dffff CoreBluetooth 1.0.0.0
0x7fff9e555000 - 0x7fff9e56afff AppContainer 1.0.0.0
0x7fff9e59e000 - 0x7fff9e5a2fff CommonPanels 96.0.0.0
0x7fff9e5a7000 - 0x7fff9e5f7fff Symbolication 58044.0.0.0
0x7fff9e5f8000 - 0x7fff9e621fff libRIP.A.dylib 600.0.0.0
0x7fff9e622000 - 0x7fff9e640fff libsystem_kernel.dylib 3248.60.10.0 (WARNING: No symbols, libsystem_kernel.dylib, C1A6A0B9186936ABB4A2D862EB09A4BE0)
0x7fff9e641000 - 0x7fff9e641fff ApplicationServices 48.0.0.0

Comment 8 by kbr@chromium.org, Dec 20 2016

Blocking: 663601

Comment 9 by kbr@chromium.org, Jan 4 2017 

This is still at the top of my list. In order to confirm the failure I need to manually inject a crash into the GPU process and see whether the resulting crash is symbolized.

Comment 10 by eyaich@chromium.org, Jan 4 2017 

Is this happening on all mac platforms?  

We have a bug out for some outstanding failures on Mac 10.10 o the perf waterfall but crashpad isn't producing any minidumps for us so they are very hard to diagnose. 

https://bugs.chromium.org/p/chromium/issues/detail?id=672855

Comment 11 Deleted

Comment 12 by kbr@chromium.org, Jan 20 2017

Blocking: 682834

Comment 13 by kbr@chromium.org, Jan 24 2017

Status: WontFix (was: Assigned)
I've injected crashes into both the renderer and GPU process and as long as a test fails because of them then the crashes are symbolized properly. I can't find evidence that there's anything wrong in Telemetry's logic for discovering and symbolizing minidumps.
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