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	#define KSTACK_PAGES 12 /* includes pcb */			#define KSTACK_PAGES 12 /* includes pcb */
	#else			#else
	#define KSTACK_PAGES 4 /* includes pcb */			#define KSTACK_PAGES 4 /* includes pcb */
	#endif			#endif
	#endif			#endif
	#define KSTACK_GUARD_PAGES 1 /* pages of kstack guard; 0 disables */			#define KSTACK_GUARD_PAGES 1 /* pages of kstack guard; 0 disables */
	#define USPACE (kstack_pages * PAGE_SIZE) /* total size of pcb */			#define USPACE (kstack_pages * PAGE_SIZE) /* total size of pcb */

				#define COPYFAULT 0x1
				#define FUSUFAULT 0x2

	/*			/*
	* Mach derived conversion macros			* Mach derived conversion macros
	*/			*/
	#define trunc_page(x) ((x) & ~(PAGE_MASK))			#define trunc_page(x) ((x) & ~(PAGE_MASK))
	#define round_page(x) (((x) + PAGE_MASK) & ~PAGE_MASK)			#define round_page(x) (((x) + PAGE_MASK) & ~PAGE_MASK)
	#define trunc_2mpage(x) ((unsigned long)(x) & ~L3_PAGE_MASK)			#define trunc_2mpage(x) ((unsigned long)(x) & ~L3_PAGE_MASK)
	#define round_2mpage(x) ((((unsigned long)(x)) + L3_PAGE_MASK) & ~L3_PAGE_MASK)			#define round_2mpage(x) ((((unsigned long)(x)) + L3_PAGE_MASK) & ~L3_PAGE_MASK)
	#define trunc_1gpage(x) ((unsigned long)(x) & ~L2_PAGE_MASK)			#define trunc_1gpage(x) ((unsigned long)(x) & ~L2_PAGE_MASK)
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