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In all special cases for spl or page_alloc where kmem_map is check for,

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mb_map (a submap of kmem_map) must also be checked.
Thanks to wcarchive (err...sort of) for demonstrating this bug.
This commit is contained in:
David Greenman 1996-07-07 03:27:41 +00:00
parent 8668b165f8
commit 9579ee641a
1 changed files with 8 additions and 8 deletions
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16
sys/vm/vm_map.c
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@ -61,7 +61,7 @@
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*
* $Id: vm_map.c,v 1.50 1996/06/12 04:03:21 dyson Exp $
* $Id: vm_map.c,v 1.51 1996/06/16 20:37:29 dyson Exp $
*/
/*
@ -371,7 +371,7 @@ vm_map_entry_create(map)
m = vm_page_alloc(kernel_object,
OFF_TO_IDX(mapvm - VM_MIN_KERNEL_ADDRESS),
(map == kmem_map) ? VM_ALLOC_INTERRUPT : VM_ALLOC_NORMAL);
(map == kmem_map || map == mb_map) ? VM_ALLOC_INTERRUPT : VM_ALLOC_NORMAL);
if (m) {
int newentries;
@ -396,7 +396,7 @@ vm_map_entry_create(map)
splx(s);
}
if (map == kernel_map || map == kmem_map || map == pager_map) {
if (map == kernel_map || map == kmem_map || map == mb_map || map == pager_map) {
s = splvm();
entry = kentry_free;
if (entry) {
@ -798,14 +798,14 @@ vm_map_find(map, object, offset, addr, length, find_space, prot, max, cow)
start = *addr;
if (map == kmem_map)
if (map == kmem_map || map == mb_map)
s = splvm();
vm_map_lock(map);
if (find_space) {
if (vm_map_findspace(map, start, length, addr)) {
vm_map_unlock(map);
if (map == kmem_map)
if (map == kmem_map || map == mb_map)
splx(s);
return (KERN_NO_SPACE);
}
@ -815,7 +815,7 @@ vm_map_find(map, object, offset, addr, length, find_space, prot, max, cow)
start, start + length, prot, max, cow);
vm_map_unlock(map);
if (map == kmem_map)
if (map == kmem_map || map == mb_map)
splx(s);
return (result);
@ -1826,7 +1826,7 @@ vm_map_remove(map, start, end)
{
register int result, s = 0;
if (map == kmem_map)
if (map == kmem_map || map == mb_map)
s = splvm();
vm_map_lock(map);
@ -1834,7 +1834,7 @@ vm_map_remove(map, start, end)
result = vm_map_delete(map, start, end);
vm_map_unlock(map);
if (map == kmem_map)
if (map == kmem_map || map == mb_map)
splx(s);
return (result);