kernel - Turn off machdep.pmap_mmu_optimize by default

* Turn off machdep.pmap_mmu_optimize by default.  There are some bugs that
  need to be resolved which are messing up both apache and rtorrent.

* (this feature is already turned off by default on RELEASE).

diff --git a/sys/platform/pc64/x86_64/pmap.c b/sys/platform/pc64/x86_64/pmap.c
index 441b365..9746be4 100644 (file)
--- a/sys/platform/pc64/x86_64/pmap.c
+++ b/sys/platform/pc64/x86_64/pmap.c
@@ -211,7 +211,7 @@ static caddr_t crashdumpmap;
 static int pmap_yield_count = 64;
 SYSCTL_INT(_machdep, OID_AUTO, pmap_yield_count, CTLFLAG_RW,
     &pmap_yield_count, 0, "Yield during init_pt/release");
-static int pmap_mmu_optimize = 1;
+static int pmap_mmu_optimize = 0;
 SYSCTL_INT(_machdep, OID_AUTO, pmap_mmu_optimize, CTLFLAG_RW,
     &pmap_mmu_optimize, 0, "Share page table pages when possible");