just make commit granularity 64 bit; it matches the expected usage pattern in a few spots

src/base/base_arena.c

@@ -52,7 +52,7 @@ arena_alloc_(ArenaParams *params)
   Arena *arena = (Arena *)base;
   arena->current = arena;
   arena->flags = params->flags;
-  arena->cmt_size = safe_cast_u32(params->commit_size);
+  arena->cmt_size = params->commit_size;
   arena->res_size = params->reserve_size;
   arena->base_pos = 0;
   arena->pos = ARENA_HEADER_SIZE;

src/base/base_arena.h

@@ -7,16 +7,12 @@
 ////////////////////////////////
 //~ rjf: Constants
 
-#if ARENA_FREE_LIST
-# define ARENA_HEADER_SIZE 128
-#else
-# define ARENA_HEADER_SIZE 64
-#endif
+#define ARENA_HEADER_SIZE 128
 
 ////////////////////////////////
 //~ rjf: Types
 
-typedef U32 ArenaFlags;
+typedef U64 ArenaFlags;
 enum
 {
   ArenaFlag_NoChain    = (1<<0),
@@ -38,7 +34,7 @@ struct Arena
   Arena *prev;    // previous arena in chain
   Arena *current; // current arena in chain
   ArenaFlags flags;
-  U32 cmt_size;
+  U64 cmt_size;
   U64 res_size;
   U64 base_pos;
   U64 pos;

src/raddbg/raddbg_core.c

@@ -8798,7 +8798,6 @@ EV_VIEW_RULE_EXPR_EXPAND_RANGE_INFO_FUNCTION_DEF(scheduler_machine)
         expr->space    = rd_eval_space_from_ctrl_entity(process, RD_EvalSpaceKind_MetaCtrlEntity);
         expr->mode     = E_Mode_Offset;
         expr->type_key = e_type_key_cons_base(type(CTRL_ProcessMetaEval));;
-        info.row_strings[row_expr_idx] = process->string;
         info.row_exprs[row_expr_idx]   = expr;
         info.row_members[row_expr_idx] = &e_member_nil;
       }