From owner-dev-commits-src-all@freebsd.org Fri Apr 30 14:45:38 2021 Return-Path: Delivered-To: dev-commits-src-all@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id C08FF62148D; Fri, 30 Apr 2021 14:45:38 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4FWwCQ4yhyz4pft; Fri, 30 Apr 2021 14:45:38 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 9BCC52DD44; Fri, 30 Apr 2021 14:45:38 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.16.1/8.16.1) with ESMTP id 13UEjcRa065888; Fri, 30 Apr 2021 14:45:38 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 13UEjcgg065887; Fri, 30 Apr 2021 14:45:38 GMT (envelope-from git) Date: Fri, 30 Apr 2021 14:45:38 GMT Message-Id: <202104301445.13UEjcgg065887@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Konstantin Belousov Subject: git: 72a42ec63b4a - main - amd64: disable LA57 by default for now MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: kib X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 72a42ec63b4a98f812f5f6164415eeb9a55e1933 Auto-Submitted: auto-generated X-BeenThere: dev-commits-src-all@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Commit messages for all branches of the src repository List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 30 Apr 2021 14:45:38 -0000 The branch main has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=72a42ec63b4a98f812f5f6164415eeb9a55e1933 commit 72a42ec63b4a98f812f5f6164415eeb9a55e1933 Author: Konstantin Belousov AuthorDate: 2021-04-28 15:50:16 +0000 Commit: Konstantin Belousov 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" 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;