Failures on [vm] Fix deadlock in NativeCallable.listener

[alexmarkov]

There are new test failures on [vm] Fix deadlock in NativeCallable.listener.

The tests

ffi/many_listener_callbacks_test/0 Fail (expected Pass)
ffi/many_listener_callbacks_test/0 Timeout (expected Pass)
ffi/many_listener_callbacks_test/1 Fail (expected Pass)
ffi/many_listener_callbacks_test/1 Timeout (expected Pass)
ffi/many_listener_callbacks_test/2 Fail (expected Pass)
ffi/many_listener_callbacks_test/2 Timeout (expected Pass)
ffi/many_listener_callbacks_test/3 Fail (expected Pass)
ffi/many_listener_callbacks_test/3 Timeout (expected Pass)
ffi/many_listener_callbacks_test/4 Fail (expected Pass)
ffi/many_listener_callbacks_test/4 Timeout (expected Pass)
ffi/many_listener_callbacks_test/5 Fail (expected Pass)
ffi/many_listener_callbacks_test/6 Fail (expected Pass)

are failing on configurations

vm-aot-fuchsia-release-arm64
vm-aot-fuchsia-release-x64
vm-fuchsia-release-arm64
vm-fuchsia-release-x64
vm-reload-linux-debug-x64
vm-reload-linux-release-x64
vm-reload-rollback-linux-debug-x64
vm-reload-rollback-linux-release-x64

This newly added test fails on Fuchsia:

--- Command "vm" (took 03.000902s):
DART_CONFIGURATION=ReleaseFuchsiaX64 FFX_ISOLATE_DIR=/b/s/w/ir/x/t/LHOWDA ./build/fuchsia/with_envs.py ./third_party/fuchsia/test_scripts/test/run_executable_test.py --test-name=fuchsia-pkg://fuchsia.com/dart_test_release#meta/dartvm_test_component.cm --test-realm=/core/testing/system-tests --out-dir=out/ReleaseFuchsiaX64/gen/dart_test_release --package-deps=dart_test_release.far -Dtest_runner.configuration=vm-fuchsia-release-x64 --ignore-unrecognized-flags --packages=pkg/data/.dart_tool/package_config.json --disable-dart-dev pkg/data/tests/ffi/many_listener_callbacks_test.dart

exit code:
1

stdout:
Running test 'fuchsia-pkg://fuchsia.com/dart_test_release#meta/dartvm_test_component.cm'
[RUNNING]	main
[stderr - main]
pkg/data/tests/ffi/many_listener_callbacks_test.dart: Error: Error when reading 'pkg/data/tests/ffi/many_listener_callbacks_test.dart': No such file or directory
[FAILED]	main

Failed tests: main
0 out of 1 tests passed...
fuchsia-pkg://fuchsia.com/dart_test_release#meta/dartvm_test_component.cm completed with result: FAILED
Tests failed.

stderr:
WARNING:root:Process exited with status code 1.

--- Re-run this test:
python3 tools/test.py -n vm-fuchsia-release-x64 ffi/many_listener_callbacks_test/0

and times out on hot-reload bots.

/cc @liamappelbe

[liamappelbe]

Fuchsia issue should be fixed by https://dart-review.googlesource.com/c/sdk/+/445160

Probably should also disable this test on the reload bots. It starts a whole bunch of threads in the background that are managed by Dart code. If we hot reload the Dart code, those threads will be running forever. That might explain why the reload bots are timing out.

[brianquinlan]

@liamappelbe Do you want to mark this as fixed now or wait until the tests are disabled on the reload bots?