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Turn off cache if there's more than one kernel mapping, and one is writable.

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Submitted by:   Mark Tinguely
This commit is contained in:
Olivier Houchard 2010-06-15 22:16:02 +00:00
parent 96c170aa1a
commit 8b1f99cdd4
1 changed files with 1 additions and 1 deletions
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2
sys/arm/arm/pmap.c
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@ -1368,7 +1368,7 @@ pmap_fix_cache(struct vm_page *pg, pmap_t pm, vm_offset_t va)
* check for kernel uncachable conditions
* kernel writable or kernel readable with writable user entry
*/
if ((kwritable && entries) ||
if ((kwritable && (entries || kentries > 1)) ||
(kwritable > 1) ||
((kwritable != writable) && kentries &&
(pv->pv_pmap == pmap_kernel() ||