chore: add maxCpuCount:1 to avoids OOM kills (MSB4166) - #3166
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Pull request overview
This PR updates the pull request validation workflow to reduce MSBuild parallelism during the dotnet build step in order to lower peak memory usage and avoid OOM-related build failures (e.g., MSB4166) on GitHub-hosted runners.
Changes:
- Update the CI build step to build sequentially by limiting MSBuild’s max CPU count.
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
Ramses Sanchez-Hernandez (ramsessanchez)
approved these changes
Aug 5, 2026
Peter Ombwa (peombwa)
enabled auto-merge (squash)
August 5, 2026 22:38
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This PR adds -maxCpuCount:1 to avoid MSB4166 from the huge generated project building in parallel on the runner.
-maxCpuCount:1forces MSBuild to build projects sequentially in a single node, capping peak memory at the cost of some build time.Microsoft Reviewers: Open in CodeFlow