Sanitizers Nightly · consan-lds-dispatch

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Case pass

Run2026-08-31T125804-33391758880Commitc57a1e4b0720e483ffeba1d680111a717e6f3d6aDate2026-08-31 12:58:04 UTCTargetgfx950Reciperecipes/sanitizers/daily-consan-lds-dispatch.yamlExecutioncompleteFindings0Containerrocm/pytorch:rocm7.2.4_ubuntu24.04_py3.12_pytorch_release_2.10.0@sha256:4449f856653602317e4101a76fce599c7fcd58ccec2e539951fce5f73083179erocjitsu bundle97c1640b2f6529ef59a6dcf1068243107e190d09

Reproduce

aorta sweep run --recipe recipes/sanitizers/daily-consan-lds-dispatch.yaml

Set ROCJITSU_PREBUILT (unpacked rocjitsu bundle supplying rj_waitcheck and the ConSan hook) before running. aorta sets HSA_TOOLS_LIB, HSA_TOOLS_DISABLE_REGISTER, RJ_CONSAN_MODE, RJ_CONSAN_POLICY for you from the recipe's policy block.

Rebuild the fixtures

fixtures/isa/lds.hsaco

a gfx code object built from fixtures/kernels/lds_reduce.hip

export PATH="$(python -c "from aorta.instrumentation.rocm_paths import resolve_rocm_roots; print(resolve_rocm_roots().llvm_bin_dir)"):${PATH}"
mkdir -p recipes/sanitizers/fixtures/isa
hipcc --genco --offload-arch=gfx950 recipes/sanitizers/fixtures/kernels/lds_reduce.hip -o tmp.o
if head -c 24 tmp.o | grep -qF __CLANG_OFFLOAD_BUNDLE__; then clang-offload-bundler --type=o --unbundle --input=tmp.o --targets=hipv4-amdgcn-amd-amdhsa--gfx950 --output=recipes/sanitizers/fixtures/isa/lds.hsaco; else cp tmp.o recipes/sanitizers/fixtures/isa/lds.hsaco; fi && rm -f tmp.o

The conditional matters: --genco emits a raw code object on some ROCm builds and a clang-offload bundle on others, and the recorded digest is of the unbundled object.

fixtures/bin/lds_dispatch

a host repro binary built from fixtures/kernels/lds_dispatch.hip

export PATH="$(python -c "from aorta.instrumentation.rocm_paths import resolve_rocm_roots; print(resolve_rocm_roots().llvm_bin_dir)"):${PATH}"
mkdir -p recipes/sanitizers/fixtures/bin
hipcc --offload-arch=gfx950 -DLDS_HSACO="\"$(pwd)/recipes/sanitizers/fixtures/isa/lds.hsaco\"" recipes/sanitizers/fixtures/kernels/lds_dispatch.hip -o recipes/sanitizers/fixtures/bin/lds_dispatch

The -DLDS_HSACO define is required: it is how the binary learns which code object to load.

The exact invocations the nightly used are in .github/workflows/sanitizers-nightly.yml.

Artifacts not published

Path	SHA-256
fixtures/isa/lds.hsaco	6fca835a6ffe427d7f9c2ac21cd0b88e879152bc46bcf99926d3b3942d54abcd
fixtures/bin/lds_dispatch	aa1dd66638cc40ce635e79f89d946134607a034098a724d18ba25845b1d973d7

Recorded digests

Key	Value
code_object:lds.hsaco	6fca835a6ffe427d7f9c2ac21cd0b88e879152bc46bcf99926d3b3942d54abcd
command	/workspace/aorta/recipes/sanitizers/fixtures/bin/lds_dispatch
command_sha256	aa1dd66638cc40ce635e79f89d946134607a034098a724d18ba25845b1d973d7
hook	/workspace/aorta/.sanitizer-nightly/rocjitsu-prebuilt/lib/librocjitsu_dbi_hooks.so
hook_sha256	fac74fad3fd8f0eef4058d15dd5a9fe326e50119d87605b49e284582572b1d68
selected_identity_sha256	7295c9ce64c46b5efed63bf03e6bf706e14d3496948518894e36e92fcef12a5e
selected_kernel	lds_reduce

Files

Every file published for this case. Logs are gzipped. It is not the whole recipe: 2 required inputs are CI-built and excluded by design, listed under artifacts not published with their SHA-256s.

File	Size
REPRODUCE.md	4.2 KB
consan/consan.log.gz	7.8 KB
env.json	4.2 KB
inputs/fixtures/kernels/lds_dispatch.hip	2.3 KB
inputs/fixtures/kernels/lds_reduce.hip	719 B
recipe.yaml	1.1 KB
sanitizer_report.json	5.8 KB