From owner-freebsd-bugs@freebsd.org Wed Dec 4 17:30:09 2019 Return-Path: <owner-freebsd-bugs@freebsd.org> Delivered-To: freebsd-bugs@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 D00A51A9413 for <freebsd-bugs@mailman.nyi.freebsd.org>; Wed, 4 Dec 2019 17:30:09 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.nyi.freebsd.org (mailman.nyi.freebsd.org [IPv6:2610:1c1:1:606c::50:13]) by mx1.freebsd.org (Postfix) with ESMTP id 47Sm812l6Tz4729 for <freebsd-bugs@freebsd.org>; Wed, 4 Dec 2019 17:30:09 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.nyi.freebsd.org (Postfix) id 5DDB91A9412; Wed, 4 Dec 2019 17:30:09 +0000 (UTC) Delivered-To: bugs@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 5D92E1A9411 for <bugs@mailman.nyi.freebsd.org>; Wed, 4 Dec 2019 17:30:09 +0000 (UTC) (envelope-from bugzilla-noreply@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) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 47Sm811k7Tz4728 for <bugs@FreeBSD.org>; Wed, 4 Dec 2019 17:30:09 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 1F2F9398B for <bugs@FreeBSD.org>; Wed, 4 Dec 2019 17:30:09 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id xB4HU9dK043928 for <bugs@FreeBSD.org>; Wed, 4 Dec 2019 17:30:09 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id xB4HU9dP043927 for bugs@FreeBSD.org; Wed, 4 Dec 2019 17:30:09 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 242427] pmap_remove() sometimes is very slow causing 10+ minutes long reboots Date: Wed, 04 Dec 2019 17:30:09 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 11.3-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: kib@FreeBSD.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: <bug-242427-227-c5Q8XJDmSZ@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-242427-227@https.bugs.freebsd.org/bugzilla/> References: <bug-242427-227@https.bugs.freebsd.org/bugzilla/> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Bug reports <freebsd-bugs.freebsd.org> List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-bugs>, <mailto:freebsd-bugs-request@freebsd.org?subject=unsubscribe> List-Archive: <http://lists.freebsd.org/pipermail/freebsd-bugs/> List-Post: <mailto:freebsd-bugs@freebsd.org> List-Help: <mailto:freebsd-bugs-request@freebsd.org?subject=help> List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-bugs>, <mailto:freebsd-bugs-request@freebsd.org?subject=subscribe> X-List-Received-Date: Wed, 04 Dec 2019 17:30:09 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D242427 --- Comment #5 from Konstantin Belousov <kib@FreeBSD.org> --- I am sure that you are detecting the edge of second and not the actual slee= ping place. It probably something that happens once in second (some callout) wh= ich allows the system to make the progress. Use precise timing functions like getnanouptime() to find the slow calls. --=20 You are receiving this mail because: You are the assignee for the bug.=