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[gardening] service/break_on_dart_colon_test/dds flakily timing out #53066

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@dcharkes

Description

@dcharkes

There are new test failures on [vm] Separate for-snapshot vs embed-sources bools when compiling to kernel...Extension types. Resolve field initializers and default values..

The tests

service/break_on_dart_colon_test/dds Timeout (expected Pass)

are failing on configurations

vm-linux-release-arm64

Was already flaking.

--- Command "vm" (took 04:02.000377s):
DART_CONFIGURATION=ReleaseXARM64 out/ReleaseXARM64/dart --verbose_debug -DUSE_DDS=true --sound-null-safety -Dtest_runner.configuration=vm-linux-release-arm64 --ignore-unrecognized-flags --packages=/b/s/w/ir/.dart_tool/package_config.json /b/s/w/ir/runtime/observatory/tests/service/break_on_dart_colon_test.dart

exit code:
1

diagnostics:
Process list including children: [5689, 6130]
Trying to capture stack trace for pid 5689
Unable to capture stack traces: ProcessException: No such file or directory
  Command: eu-stack -p 5689
Trying to capture stack trace for pid 6130
Unable to capture stack traces: ProcessException: No such file or directory
  Command: eu-stack -p 6130

stdout:
00:00 �[32m+0�[0m: break_on_dart_colon_test.dart (DDS)�[0m

** Launching SERVICE_TEST_TESTEE=true out/ReleaseXARM64/dart --disable-dart-dev --write-service-info=file:///b/s/w/itoenoqxch/dart_serviceHJAVTO/service_info.json --profiler --verbose_debug -DUSE_DDS=true --sound-null-safety -Dtest_runner.configuration=vm-linux-release-arm64 --ignore-unrecognized-flags --packages=/b/s/w/ir/.dart_tool/package_config.json --enable-vm-service:0 /b/s/w/ir/runtime/observatory/tests/service/break_on_dart_colon_test.dart

>testee>out> The Dart VM service is listening on http://127.0.0.1:35787/280CQ9gLdSM=/

>testee>out> 

>testee>err> HandleSteppingRequest- kStepOut ffff7e300c60

>testee>err> >>> single step break at file:///b/s/w/ir/runtime/observatory/tests/service/break_on_dart_colon_test.dart:17:3 (func testMain token 448 address 0xffffb9e34008 offset 0x88)

** Signaled to run test queries on http://127.0.0.1:34863/NAQdlgSBzQA=/ (DDS)

Loading VM...

Done loading VM

Running break_on_dart_colon_test.dart [1/6]

Paused with PauseBreakpoint

Running break_on_dart_colon_test.dart [2/6]

Running break_on_dart_colon_test.dart [3/6]

>testee>err> Setting code breakpoint at pos 371 pc 0xffffb9e32cf0 offset 0xa0

>testee>err> Resolved code breakpoint for function 'dart:core_::_print' at line 10 col 14

--- Re-run this test:
python3 tools/test.py -n vm-linux-release-arm64 service/break_on_dart_colon_test/dds

https://dart-ci.appspot.com/log/vm-linux-release-arm64/vm-linux-release-arm64/752/service/break_on_dart_colon_test/dds

#52599 (comment) says the previous issues should be solved. So this should be triaged again. Nonthing in the log seems to indicate it's hanging.

cc @bkonyi

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    area-pkgUsed for miscellaneous pkg/ packages not associated with specific area- teams.gardeningpkg-vm-servicevm-serviceThe VM Service Protocol, both the specification and its implementation

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