Author: mjg
Date: Tue Oct 22 22:54:41 2019
New Revision: 353905
URL: https://svnweb.freebsd.org/changeset/base/353905
Log:
amd64 pmap: fixup invlgen lookup for fictitious mappings
Similarly to r353438, use dummy entry.
Reported and tested by: Neel Chauhan
Sponsored by: The FreeBSD Foundation
Modified:
head/sys/amd64/amd64/pmap.c
Modified: head/sys/amd64/amd64/pmap.c
==============================================================================
--- head/sys/amd64/amd64/pmap.c Tue Oct 22 22:52:53 2019 (r353904)
+++ head/sys/amd64/amd64/pmap.c Tue Oct 22 22:54:41 2019 (r353905)
@@ -951,8 +951,16 @@ SYSCTL_LONG(_vm_pmap, OID_AUTO, invl_wait_slow, CTLFLA
static u_long *
pmap_delayed_invl_genp(vm_page_t m)
{
+ vm_paddr_t pa;
+ u_long *gen;
- return (&pa_to_pmdp(VM_PAGE_TO_PHYS(m))->pv_invl_gen);
+ pa = VM_PAGE_TO_PHYS(m);
+ if (__predict_false((pa) > pmap_last_pa))
+ gen = &pv_dummy_large.pv_invl_gen;
+ else
+ gen = &(pa_to_pmdp(pa)->pv_invl_gen);
+
+ return (gen);
}
#else
static u_long *
_______________________________________________
svn-src-head@freebsd.org mailing list
https://lists.freebsd.org/mailman/listinfo/svn-src-head
To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
