In a stress run (two rugnux on one 16 GB card) the indexer's cufftPlanMany failed three times with
CUFFT_INTERNAL_ERROR (5), not CUFFT_ALLOC_FAILED, so the message carried neither the free memory
nor the remedy. Every plan failure is now reported like a failed allocation: free memory on the
card, the two usual causes and the CPU remedy.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>