Each of these wrote a value after resolution so a later reader would find it on
the instance. None of them needed the instance: one write was redundant, and the
two that carry a value the resolved-config readback reports move to
get_context().override, which the readback overlays.
- The SM100 GDN prefill default was written onto ServerArgs and read back one
line later by initialize_linear_attn_config. It is now the return value of
flashinfer_gdn_prefill_default, threaded into initialize_linear_attn_config
(an explicit --linear-attn-prefill-backend still wins) and recorded with
get_context().override so /server_info reports the backend in effect.
- The XGrammar fallback recorded grammar_backend="none" on the instance. No code
reads the field after the factory reads it once, but get_internal_state
reports the whole resolved config, so the fallback now lands there instead:
the readback tells the truth and the seed keeps the requested backend.
- UnifiedRadixCache.init_hicache re-applied the direct-IO layout fixup that
__post_init__ already applies: init_hicache only runs when hierarchical cache
is on, which is exactly when _handle_hicache normalizes page_first to
page_first_direct (pinned by test_hicache_io_backend_and_mem_layout_
compatibility::direct_with_page_first). Three fixtures reached the fixup by
building ServerArgs(model_path="dummy"), whose resolution is skipped, so they
now declare the layout resolution would have produced.
Writer ratchet 34 -> 31.
Cheng Wan
ebb1c88d23