Flaky failure in Plugin/level_zero_imm_cmdlist_per_thread.cpp on Windows

[steffenlarsen]

Plugin/level_zero_imm_cmdlist_per_thread.cpp flakily fails on Windows L0 on Gen12 in pre-commit CI.

Output:

FAIL: SYCL :: Plugin/level_zero_imm_cmdlist_per_thread.cpp (1037 of 1306)
******************** TEST 'SYCL :: Plugin/level_zero_imm_cmdlist_per_thread.cpp' FAILED ********************
Script:
--
: 'RUN: at line 3';    .../llvm/llvm/install/bin/clang++.exe   -fsycl -fsycl-targets=spir64  -lze_loader  -I.../llvm/llvm/install\include  ...\llvm\llvm\llvm\sycl\test-e2e\Plugin\level_zero_imm_cmdlist_per_thread.cpp -o ...\llvm\llvm\build-e2e\Plugin\Output\level_zero_imm_cmdlist_per_thread.cpp.tmp.out
: 'RUN: at line 4';   env SYCL_PI_LEVEL_ZERO_USE_IMMEDIATE_COMMANDLISTS=1 ZE_DEBUG=4  env ONEAPI_DEVICE_SELECTOR=ext_oneapi_level_zero:gpu  ...\llvm\llvm\build-e2e\Plugin\Output\level_zero_imm_cmdlist_per_thread.cpp.tmp.out 2>&1 | ...\llvm\llvm\install\bin\filecheck.exe --check-prefixes=CHECK-ONE-CMDLIST ...\llvm\llvm\llvm\sycl\test-e2e\Plugin\level_zero_imm_cmdlist_per_thread.cpp
: 'RUN: at line 5';   env SYCL_PI_LEVEL_ZERO_USE_IMMEDIATE_COMMANDLISTS=2 ZE_DEBUG=4  env ONEAPI_DEVICE_SELECTOR=ext_oneapi_level_zero:gpu  ...\llvm\llvm\build-e2e\Plugin\Output\level_zero_imm_cmdlist_per_thread.cpp.tmp.out 2>&1 | ...\llvm\llvm\install\bin\filecheck.exe --check-prefixes=CHECK-PER-THREAD-CMDLIST ...\llvm\llvm\llvm\sycl\test-e2e\Plugin\level_zero_imm_cmdlist_per_thread.cpp
--
Exit Code: 3221226505

Command Output (stdout):
--
$ ":" "RUN: at line 3"
$ ".../llvm/llvm/install/bin/clang++.exe" "-fsycl" "-fsycl-targets=spir64" "-lze_loader" "-I.../llvm/llvm/install\include" "...\llvm\llvm\llvm\sycl\test-e2e\Plugin\level_zero_imm_cmdlist_per_thread.cpp" "-o" "...\llvm\llvm\build-e2e\Plugin\Output\level_zero_imm_cmdlist_per_thread.cpp.tmp.out"
$ ":" "RUN: at line 4"
$ "env" "SYCL_PI_LEVEL_ZERO_USE_IMMEDIATE_COMMANDLISTS=1" "ZE_DEBUG=4" "env" "ONEAPI_DEVICE_SELECTOR=ext_oneapi_level_zero:gpu" "...\llvm\llvm\build-e2e\Plugin\Output\level_zero_imm_cmdlist_per_thread.cpp.tmp.out"
note: command had no output on stdout or stderr
error: command failed with exit status: 0xc0000409
$ "...\llvm\llvm\install\bin\filecheck.exe" "--check-prefixes=CHECK-ONE-CMDLIST" "...\llvm\llvm\llvm\sycl\test-e2e\Plugin\level_zero_imm_cmdlist_per_thread.cpp"

--

Example PR encountering this: #9072

[sarnex]

I'll make a PR to disable this test and make a separate internal bug tracker to fix the root cause and re-enable it.

[rdeodhar]

Immediate command lists on Windows Gen12 has other issues too. Current plan is to enable immediate command lists on Linux+PVC only. So this test could be disabled on Windows (only) until we enable immediate command lists on Windows.

[sarnex]

Thanks, in my current PR it's disabled on windows && gen12

[rdeodhar]

Oddly, my PR #8982 shows the same fail on Windows Gen12 although the test is supposed to be disabled on that combination. Is the UNSUPPORTED not working as expected?

[sarnex]

@rdeodhar Can you link the failure log? I don't see it in the current CI for your PR