The branch main has been updated by kib:
URL:
https://cgit.FreeBSD.org/src/commit/?id=72a42ec63b4a98f812f5f6164415eeb9a55e1933
commit 72a42ec63b4a98f812f5f6164415eeb9a55e1933
Author: Konstantin Belousov <k...@freebsd.org>
AuthorDate: 2021-04-28 15:50:16 +0000
Commit: Konstantin Belousov <k...@freebsd.org>
CommitDate: 2021-04-30 14:43:45 +0000
amd64: disable LA57 by default for now
A testing on the real hardware uncovered an issue, and since I do not have
access to the machine, disable until the bug can be fixed.
Reported by: "Pieper, Jeffrey E" <jeffrey.e.pie...@intel.com>
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
---
sys/amd64/amd64/pmap.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/sys/amd64/amd64/pmap.c b/sys/amd64/amd64/pmap.c
index 5a6a1cee8b8c..a4046cc1f687 100644
--- a/sys/amd64/amd64/pmap.c
+++ b/sys/amd64/amd64/pmap.c
@@ -2080,8 +2080,7 @@ pmap_bootstrap_la57(void *arg __unused)
if ((cpu_stdext_feature2 & CPUID_STDEXT2_LA57) == 0)
return;
- if (!TUNABLE_INT_FETCH("vm.pmap.la57", &la57))
- la57 = 1;
+ TUNABLE_INT_FETCH("vm.pmap.la57", &la57);
if (!la57)
return;
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