Open rmacnak-google opened 1 month ago
Thanks @rmacnak-google.
Relevant logs:
stderr:
==27580==WARNING: MemorySanitizer: use-of-uninitialized-value
/b/s/w/ir/cache/builder/sdk/buildtools/linux-arm64/clang/bin/llvm-symbolizer: error: '[anon:dart-code]': No such file or directory
#0 0xffffe74df9b0 in PassStructStruct16BytesMixed3x10 out/ReleaseMSANARM64/../../runtime/bin/ffi_test/ffi_test_functions_generated.cc:3808:25
#1 0xfffff7587024 ([anon:dart-code]+0x7024)
#2 0xffffe73bafe0 ([anon:dart-code]+0x3afe0)
stderr:
==27376==WARNING: MemorySanitizer: use-of-uninitialized-value
/b/s/w/ir/cache/builder/sdk/buildtools/linux-arm64/clang/bin/llvm-symbolizer: error: '[anon:dart-code]': No such file or directory
#0 0xffffe7ffd9e4 in ReturnStructNestedIntStructAlignmentInt32 out/ReleaseMSANARM64/../../runtime/bin/ffi_test/ffi_test_functions_generated.cc:6238:13
#1 0xfffff7587e04 ([anon:dart-code]+0x7e04)
#2 0xfffff50e6858 ([anon:dart-code]+0x66858)
stderr:
==725132==WARNING: MemorySanitizer: use-of-uninitialized-value
#0 0x7fd3d1c5003e in ReturnStructArgumentStructStruct32BytesHomogeneous out/ReleaseMSANX64/../../runtime/bin/ffi_test/ffi_test_functions_generated.cc:5962:36
#1 0x7fd3e1486e3a (<unknown module>)
#2 0x7fd3de94448e (<unknown module>)
stderr:
==725150==WARNING: MemorySanitizer: use-of-uninitialized-value
#0 0x7f47351510f0 in ReturnStructNestedIntStructAlignmentInt32 out/ReleaseMSANX64/../../runtime/bin/ffi_test/ffi_test_functions_generated.cc:6238:13
#1 0x7f4744185f79 (<unknown module>)
#2 0x7f474185dbdd (<unknown module>)
#3 0x7f474185d6cf (<unknown module>)
stderr:
==15165==WARNING: MemorySanitizer: use-of-uninitialized-value
#0 0x7f4191c765e2 in PassStruct8BytesInlineArrayIntx4 out/ReleaseMSANX64/../../runtime/bin/ffi_test/ffi_test_functions_generated.cc:3412:13
#1 0x7f41a1e85f79 (<unknown module>)
#2 0x7f4192699cc2 (<unknown module>)
Seems to happen with multiple combinations of vm flags.
And it's all when std:cout
ing parameters.
(And as opposed to earlier issues with std::cout
(https://github.com/dart-lang/sdk/issues/43075), this is not failing inside the std lib, but on the actual parameters.)
Link to flakes on dashboard: https://dart-current-results.web.app/#/filter=ffi/function_structs_by_value&flaky
Link to flakiness dashboard: msan and ffi.
Some more similar existing failures:
stderr:
==572662==WARNING: MemorySanitizer: use-of-uninitialized-value
#0 0x7fd6ca648b0c in PassUnion9BytesNestedIntx10 out/ReleaseMSANX64/../../runtime/bin/ffi_test/ffi_test_functions_generated.cc:4425:57
#1 0x7fd6da385f79 (<unknown module>)
#2 0x7fd6caf3df24 (<unknown module>)
stderr:
==311022==WARNING: MemorySanitizer: use-of-uninitialized-value
#0 0x7f537f8c944e in PassUint8Struct32BytesInlineArrayMultiDimensionalI out/ReleaseMSANX64/../../runtime/bin/ffi_test/ffi_test_functions_generated.cc:3918:13
#1 0x7f538f286e3a (<unknown module>)
This has been happing for a while, going as far back as 2023-05-xx.
ffi/function_structs_by_value_generated_args_native_test log ffi/function_structs_by_value_generated_ret_arg_native_test log ffi/function_structs_by_value_generated_args_test log
are flaky failing for both X64 and ARM64.
@dcharkes