[Radix Cache] Fix PureSWA tail release without insertion (#38349)

2026-09-10 23:55:48 +08:00
parent cc7e43ad22
commit 19b83b4b9d
2 changed files with 59 additions and 2 deletions
@@ -129,8 +129,8 @@ class PureSWARadixCache(RadixCache):
                self.token_to_kv_pool_allocator.free(
                    kv_indices[old_prefix_len:free_end]
                )
-            alive_start = max(swa_evicted_seqlen, old_prefix_len)
-            if swa_evicted_seqlen > 0 and alive_start < keys_len:
+            alive_start = max(swa_evicted_seqlen, free_end)
+            if alive_start < keys_len:
                self.token_to_kv_pool_allocator.free(kv_indices[alive_start:keys_len])

        self.token_to_kv_pool_allocator.free(kv_indices[keys_len:])