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Add e2e test for CUDA Minor Version Compatibility#1791

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cdesiniotis wants to merge 3 commits intoNVIDIA:mainfrom
cdesiniotis:e2e-add-mvc-test
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Add e2e test for CUDA Minor Version Compatibility#1791
cdesiniotis wants to merge 3 commits intoNVIDIA:mainfrom
cdesiniotis:e2e-add-mvc-test

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@cdesiniotis cdesiniotis commented Apr 21, 2026

Depends on #1784

The holodeck failures should be fixed by NVIDIA/holodeck#782

…ilable

This commit reverts  NVIDIA@08bf583
which made it so that the libcuda.so ELF header was only ever inspected
on certain Tegra systems, like Orin. We now leverage the libcuda.so
ELF header in all cases (if available) to determine if the CUDA compat
libraries bundled in the container should be used in favor of the host
driver libraries. This allows us to support CUDA minor version compatibility.

Signed-off-by: Christopher Desiniotis <cdesiniotis@nvidia.com>
…n version strings

Any version string passed as an argument to semver.Compare() must be a valid semantic
version. It is common for NVIDIA driver versions to have leading zeros in the MINOR or
PATCH portion of a version string, e.g. 575.57.08. As a result, a call to
semver.Compare("575.57.08", "575.10.10") would incorrectly return -1 because the first
argument is not a valid semantic version.

And from https://pkg.go.dev/golang.org/x/mod/semver#Compare:

'''
An invalid semantic version string is considered less than a valid one.
All invalid semantic version strings compare equal to each other.
'''

Signed-off-by: Christopher Desiniotis <cdesiniotis@nvidia.com>
Signed-off-by: Christopher Desiniotis <cdesiniotis@nvidia.com>
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Coverage Report for CI Build 24749042545

Coverage increased (+0.2%) to 43.481%

Details

  • Coverage increased (+0.2%) from the base build.
  • Patch coverage: 3 uncovered changes across 1 file (31 of 34 lines covered, 91.18%).
  • No coverage regressions found.

Uncovered Changes

File Changed Covered %
cmd/nvidia-cdi-hook/cudacompat/cuda-elf-header.go 26 23 88.46%

Coverage Regressions

No coverage regressions found.


Coverage Stats

Coverage Status
Relevant Lines: 14880
Covered Lines: 6470
Line Coverage: 43.48%
Coverage Strength: 0.48 hits per line

💛 - Coveralls

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2 participants