DeepSeek-V4-Flash Stuck in Doom Loop on llama.cpp Vulkan
KingCpzombie · reddit · 2026-08-04
A developer encountered a 'Doom Loop' issue while trying to locally deploy the DeepSeek-V4-Flash (Q8KXL quantized version) using llama.cpp Vulkan build (10216). The model gets stuck repeatedly outputting meaningless 'Need maybe' tokens before generating actual content.
Hardware & Config:
- Device: Dual 7900XTX GPUs (48GB VRAM) + 9800X3D CPU + 192GB RAM.
- Params: Context size set to 500,000, reasoning effort maxed out, temp 1.0, top-p 0.95.
The user is unsure if building the absolute latest version directly from GitHub is required to fix this.
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