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Get some more data if we hit the pmap_enter() thing.

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This commit is contained in:
Peter Wemm 2003-10-15 00:45:35 +00:00
parent dd12ec5d2f
commit 6f366f87e6
1 changed files with 8 additions and 1 deletions
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9
sys/i386/i386/pmap.c
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@ -1902,8 +1902,15 @@ pmap_enter(pmap_t pmap, vm_offset_t va, vm_page_t m, vm_prot_t prot,
origpte = *pte;
opa = origpte & PG_FRAME;
if (origpte & PG_PS)
if (origpte & PG_PS) {
/*
* Yes, I know this will truncate upper address bits for PAE,
* but I'm actually more interested in the lower bits
*/
printf("pmap_enter: va %p, pte %p, origpte %p\n",
(void *)va, (void *)pte, (void *)(uintptr_t)origpte);
panic("pmap_enter: attempted pmap_enter on 4MB page");
}
/*
* Mapping has not changed, must be protection or wiring change.