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Add some debug code.

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This commit is contained in:
Doug Rabson 1998-07-15 20:07:33 +00:00
parent a6481f0baf
commit 718c0cbefb
1 changed files with 16 additions and 3 deletions
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19
sys/alpha/alpha/pmap.c
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@ -43,7 +43,7 @@
* from: @(#)pmap.c 7.7 (Berkeley) 5/12/91
* from: i386 Id: pmap.c,v 1.193 1998/04/19 15:22:48 bde Exp
* with some ideas from NetBSD's alpha pmap
* $Id: pmap.c,v 1.2 1998/07/05 11:58:35 dfr Exp $
* $Id: pmap.c,v 1.3 1998/07/12 16:13:54 dfr Exp $
*/
/*
@ -185,6 +185,7 @@
#define MINPV 2048
#define PMAP_DIAGNOSTIC
#define PMAP_DEBUG
#if !defined(PMAP_DIAGNOSTIC)
#define PMAP_INLINE __inline
@ -195,7 +196,7 @@
#if 1
static void
pmap_break()
pmap_break(void)
{
}
@ -1213,7 +1214,7 @@ pmap_release_free_page(pmap_t pmap, vm_page_t p)
*pte = 0;
pmap->pm_stats.resident_count--;
#if !defined(MAX_PERF)
#ifdef PMAP_DEBUG
if (p->hold_count) {
panic("pmap_release: freeing held page table page");
}
@ -1228,6 +1229,16 @@ pmap_release_free_page(pmap_t pmap, vm_page_t p)
if (pmap->pm_ptphint && (pmap->pm_ptphint->pindex == p->pindex))
pmap->pm_ptphint = NULL;
#ifdef PMAP_DEBUG
{
u_long *lp = (u_long*) ALPHA_PHYS_TO_K0SEG(VM_PAGE_TO_PHYS(p));
u_long *ep = (u_long*) ((char*) lp + PAGE_SIZE);
for (; lp < ep; lp++)
if (*lp != 0)
panic("pmap_release_free_page: page not zero");
}
#endif
vm_page_free_zero(p);
return 1;
}
@ -1429,6 +1440,8 @@ pmap_growkernel(vm_offset_t addr)
s = splhigh();
printf("pmap_growkernel: growing to %lx\n", addr);
if (kernel_vm_end == 0) {
kernel_vm_end = VM_MIN_KERNEL_ADDRESS;;