Mirror comfy-dev's operator-run allocator A/B result off irv-ml1: drop
--disable-cuda-malloc (ComfyUI keeps CUDA's default async allocator) and
remove PYTORCH_CUDA_ALLOC_CONF=expandable_segments:True (native-allocator-only,
inert under cudaMallocAsync). The native+expandable_segments combo was
fragmenting/over-reserving (~45 GB allocated-but-unused) and OOMing the LTX-2.3
v1.5.0 LoRA stack at Gemma TE load; cudaMallocAsync packs tighter + returns
freed blocks so the job fits (stress test peaks ~82% VRAM, 0 OOM). The
shared-A6000 phantom-OOM that --disable-cuda-malloc guarded is gone since TTS
moved to the 3090 (2026-06-18).
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a5dcad8bd3