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[Backport branch/3.6.x] [libcu++] Skip fabric status decoding when a shared_memory_barrier wait has no report - #12228
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…report (#12131) operation_status::get_error_count() and for_each_error() called the device-side fabric status decoder even when the completed wait produced no report. On a GeForce RTX 5070 Ti (sm_120) with driver 617.42 (CUDA 13.4), cudaFabricOpErrorStatusCount() returns cudaErrorNotSupported, so __verify_fabric_status() trapped although there was nothing to decode. Return 0 without calling the decoder when there is no report. Co-authored-by: SUKUNA-AI <180781973+SUKUNA-AI@users.noreply.github.com> Co-authored-by: pciolkosz <pciolkosz@nvidia.com> (cherry picked from commit 4811a1c)
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🥳 CI Workflow Results🟩 Finished in 2h 31m: Pass: 100%/228 | Total: 2d 12h | Max: 1h 29m | Hits: 97%/650213See results here. |
miscco
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Oct 26, 2026
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Description
Backport of #12131 to
branch/3.6.x.