Open
Description
https://lab.llvm.org/staging/#/builders/211/builds/419
https://lab.llvm.org/staging/#/builders/211/builds/423
About 25% of test runs fail with the assert in the last line lldbutil.wait_for_file_on_target(self, exit_file_path)
AssertionError: File C:\buildbot\as-builder-10\lldb-x86-64\build\lldb-test-build.noindex\commands\process\detach-resumes\TestDetachResumes.test_detach_resumes\exit_file_1750332982 not found even after 6 attempts.
Note the file exit_file_* is really missing after this test. This issue is easily reproducible locally running
C:/Python312/python.exe D:/llvm-project/lldb\test\API\dotest.py ^
-v -t ^
-u CXXFLAGS -u CFLAGS ^
--env OBJCOPY=D:/build-x64/bin/llvm-objcopy.exe ^
--env STRIP=D:/build-x64/bin/llvm-strip.exe ^
--env LLVM_LIBS_DIR=D:/build-x64/lib ^
--env LLVM_INCLUDE_DIR=D:/build-x64/include ^
--env LLVM_TOOLS_DIR=D:/build-x64/./bin ^
--env ARCHIVER=D:/build-x64/bin/llvm-ar.exe ^
--arch x86_64 ^
--build-dir D:/build-x64/lldb-test-build.noindex ^
--lldb-module-cache-dir D:/build-x64/lldb-test-build.noindex/module-cache-lldb\lldb-api ^
--clang-module-cache-dir D:/build-x64/lldb-test-build.noindex/module-cache-clang\lldb-api ^
--executable D:/build-x64/bin/lldb.exe ^
--make C:/ProgramData/chocolatey/bin/make.exe ^
--compiler D:/build-x64/bin/clang.exe ^
--dsymutil D:/build-x64/bin/dsymutil.exe ^
--llvm-tools-dir D:/build-x64/bin ^
--lldb-obj-root D:/build-x64/tools/lldb ^
--lldb-libs-dir D:/build-x64/lib ^
--cmake-build-type Release ^
D:\llvm-project\lldb\test\API\commands\process\detach-resumes -p TestDetachResumes.py
It seems something is really wrong with the detaching on Windows x86_64 in case of multithreading.