Repository navigation
Crash in dpctl test suite run on opencl::cpu using SYCL nightly compiler and runtime #2156
Description
The os-llvm workflow has been failing with crash due to assertion failure during execution of test_usm_ndarray_indexing.py.
I was able to reproduce this crash locally:
$ OCL_ICD_FILENAMES=~/sycl-builds/oclcpuexp/x64/libintelocl.so \
OCL_ICD_VENDORS=. \
CL_CONFIG_CPU_VECTORIZER_MODE=8 \
ONEAPI_DEVICE_SELECTOR=opencl:cpu \
python -m pytest -s dpctl/tests
<snipped>
........................................python: /__w/llvm/llvm/src/sycl/source/detail/device_kernel_info.cpp:67: void sycl::_V1::detail::DeviceKernelInfo::setCompileTimeInfoIfNeeded(const sycl::_V1::detail::compile_time_kernel_info_v1::CompileTimeKernelInfoTy&): Assertion `Info == *this' failed.
Fatal Python error: Aborted
Current thread 0x00007ff581274740 (most recent call first):
File "/home/sycloid/repos/dpctl/dpctl/tensor/_copy_utils.py", line 795 in _extract_impl
File "/home/sycloid/repos/dpctl/dpctl/tests/test_usm_ndarray_indexing.py", line 1473 in test_nonzero_large
File "/home/sycloid/miniforge/envs/dev_dpctl/lib/python3.13/site-packages/_pytest/python.py", line 157 in pytest_pyfunc_call
File "/home/sycloid/miniforge/envs/dev_dpctl/lib/python3.13/site-packages/pluggy/_callers.py", line 121 in _multicall
The crash is not reproducible if just that test file is file is run instead of entire test suite.
This issue is to investigate the crash.
Activity
sycloid commentedon Sep 19, 2025
The crash with SYCL bundle is reproducible with GPU device as well: intel/llvm#20132 (comment)
In order to resolve IntelPythongh-2156 move definition of the mask_po…
In order to resolve IntelPythongh-2156 move definition of the mask_po…
sycloid commentedon Sep 26, 2025
See intel/llvm#20132 (comment) for minimal Python reproducer.
See intel/llvm#20132 (comment) for a work-around implemented in #2157
sycloid commentedon Sep 29, 2025
The segmentation fault is no longer reproducible with compiler built from current top of tree