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cuda: name the missing entry point in load_function errors - #10
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sebcrozet merged 1 commit intoSep 30, 2026
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A failed load_function previously surfaced as a bare DriverError with no hint of WHICH kernel was missing — the common cause being a stale prebuilt module or a shader/host build mismatch, where the missing entry's name is exactly the diagnostic you need. Add a LoadFunction error variant carrying the entry-point name.
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A failed
load_functioncurrently surfaces as a bareDriverError(CUDA_ERROR_NOT_FOUND) with no hint of which kernel was missing. The common causes — a stale prebuilt module, or a shader/host build mismatch where the host expects a kernel the module predates — are exactly the situations where the missing entry's name is the diagnostic you need (we've lost real time to this while iterating on nexus shader kernels).This adds a
LoadFunctionvariant toCudaBackendErrorcarrying the entry-point name:No behavior change on the success path;
cargo check -p khalandcargo fmt --checkclean.🤖 Generated with Claude Code
https://claude.ai/code/session_01U2n9RqmxTJb8UG5d1Sjw4W