Author: markj
Date: Sat Nov 17 20:55:11 2018
New Revision: 340522
URL: https://svnweb.freebsd.org/changeset/base/340522
Log:
MFC r339490:
Add an assertion to pmap_enter().
Modified:
stable/12/sys/amd64/amd64/pmap.c
stable/12/sys/i386/i386/pmap.c
Directory Properties:
stable/12/ (props changed)
Modified: stable/12/sys/amd64/amd64/pmap.c
==============================================================================
--- stable/12/sys/amd64/amd64/pmap.c Sat Nov 17 20:54:24 2018
(r340521)
+++ stable/12/sys/amd64/amd64/pmap.c Sat Nov 17 20:55:11 2018
(r340522)
@@ -5141,6 +5141,8 @@ retry:
vm_page_aflag_set(om, PGA_REFERENCED);
CHANGE_PV_LIST_LOCK_TO_PHYS(&lock, opa);
pv = pmap_pvh_remove(&om->md, pmap, va);
+ KASSERT(pv != NULL,
+ ("pmap_enter: no PV entry for %#lx", va));
if ((newpte & PG_MANAGED) == 0)
free_pv_entry(pmap, pv);
if ((om->aflags & PGA_WRITEABLE) != 0 &&
Modified: stable/12/sys/i386/i386/pmap.c
==============================================================================
--- stable/12/sys/i386/i386/pmap.c Sat Nov 17 20:54:24 2018
(r340521)
+++ stable/12/sys/i386/i386/pmap.c Sat Nov 17 20:55:11 2018
(r340522)
@@ -3820,6 +3820,8 @@ pmap_enter(pmap_t pmap, vm_offset_t va, vm_page_t m, v
if ((origpte & PG_A) != 0)
vm_page_aflag_set(om, PGA_REFERENCED);
pv = pmap_pvh_remove(&om->md, pmap, va);
+ KASSERT(pv != NULL,
+ ("pmap_enter: no PV entry for %#x", va));
if ((newpte & PG_MANAGED) == 0)
free_pv_entry(pmap, pv);
if ((om->aflags & PGA_WRITEABLE) != 0 &&
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