From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id F2206C433E3 for ; Sun, 23 Aug 2020 10:45:04 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 44FF72074D for ; Sun, 23 Aug 2020 10:45:04 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 44FF72074D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ucw.cz Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id A64AF6B0002; Sun, 23 Aug 2020 06:45:03 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id A157C6B0003; Sun, 23 Aug 2020 06:45:03 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 92B596B0005; Sun, 23 Aug 2020 06:45:03 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0215.hostedemail.com [216.40.44.215]) by kanga.kvack.org (Postfix) with ESMTP id 7AB896B0002 for ; Sun, 23 Aug 2020 06:45:03 -0400 (EDT) Received: from smtpin13.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id 39338362B for ; Sun, 23 Aug 2020 10:45:03 +0000 (UTC) X-FDA: 77181500886.13.comb37_550fb9d27049 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin13.hostedemail.com (Postfix) with ESMTP id 0E31418140B60 for ; Sun, 23 Aug 2020 10:45:03 +0000 (UTC) X-HE-Tag: comb37_550fb9d27049 X-Filterd-Recvd-Size: 2583 Received: from jabberwock.ucw.cz (jabberwock.ucw.cz [46.255.230.98]) by imf21.hostedemail.com (Postfix) with ESMTP for ; Sun, 23 Aug 2020 10:45:02 +0000 (UTC) Received: by jabberwock.ucw.cz (Postfix, from userid 1017) id A4BEA1C0BBB; Sun, 23 Aug 2020 12:44:59 +0200 (CEST) Date: Sun, 23 Aug 2020 12:44:59 +0200 From: Pavel Machek To: Joerg Roedel Cc: Andrew Morton , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Chris Wilson , intel-gfx@lists.freedesktop.org, Linus Torvalds , Dave Airlie , Joonas Lahtinen , Rodrigo Vivi , David Vrabel , Joerg Roedel , stable@vger.kernel.org Subject: Re: [PATCH v2] mm: Track page table modifications in __apply_to_page_range() Message-ID: <20200823104459.untmn33r46wqxi66@duo.ucw.cz> References: <20200821123746.16904-1-joro@8bytes.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="ab2tecr4xsmyxrrm" Content-Disposition: inline In-Reply-To: <20200821123746.16904-1-joro@8bytes.org> User-Agent: NeoMutt/20180716 X-Rspamd-Queue-Id: 0E31418140B60 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam02 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: --ab2tecr4xsmyxrrm Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi! > The __apply_to_page_range() function is also used to change and/or > allocate page-table pages in the vmalloc area of the address space. > Make sure these changes get synchronized to other page-tables in the > system by calling arch_sync_kernel_mappings() when necessary. >=20 > Tested-by: Chris Wilson #x86-32 > Cc: # v5.8+ > Signed-off-by: Joerg Roedel This seems to solve screen blinking problems on Thinkpad X60. (It already survived few unison runs, which would usually kill it.). Tested-by: Pavel Machek Thanks and best regards, Pavel --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --ab2tecr4xsmyxrrm Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iF0EARECAB0WIQRPfPO7r0eAhk010v0w5/Bqldv68gUCX0JIqwAKCRAw5/Bqldv6 8kjIAJoD97mGm2SLYscxJlq2IzZ34vE4vQCcDwXVYWTvZgJt0mtfFG77d0syZ0o= =f1aM -----END PGP SIGNATURE----- --ab2tecr4xsmyxrrm--