From patchwork Mon Jul 29 11:19:18 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Colin Ian King X-Patchwork-Id: 1138316 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=lists.ubuntu.com (client-ip=91.189.94.19; helo=huckleberry.canonical.com; envelope-from=kernel-team-bounces@lists.ubuntu.com; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=canonical.com Received: from huckleberry.canonical.com (huckleberry.canonical.com [91.189.94.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 45xxzP2sghz9sMQ; Mon, 29 Jul 2019 21:19:29 +1000 (AEST) Received: from localhost ([127.0.0.1] helo=huckleberry.canonical.com) by huckleberry.canonical.com with esmtp (Exim 4.86_2) (envelope-from ) id 1hs3ga-0001tR-7v; Mon, 29 Jul 2019 11:19:24 +0000 Received: from youngberry.canonical.com ([91.189.89.112]) by huckleberry.canonical.com with esmtps (TLS1.0:DHE_RSA_AES_128_CBC_SHA1:128) (Exim 4.86_2) (envelope-from ) id 1hs3gZ-0001t8-0N for kernel-team@lists.ubuntu.com; Mon, 29 Jul 2019 11:19:23 +0000 Received: from 1.general.cking.uk.vpn ([10.172.193.212] helo=localhost) by youngberry.canonical.com with esmtpsa (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.76) (envelope-from ) id 1hs3gY-0000V0-JV; Mon, 29 Jul 2019 11:19:22 +0000 From: Colin King To: kernel-team@lists.ubuntu.com Subject: [PATCH 0/4][SRU][B-HWE][D][V3] fix i386 boot crashes, LP: #1838115 Date: Mon, 29 Jul 2019 12:19:18 +0100 Message-Id: <20190729111922.8611-1-colin.king@canonical.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-BeenThere: kernel-team@lists.ubuntu.com X-Mailman-Version: 2.1.20 Precedence: list List-Id: Kernel team discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: kernel-team-bounces@lists.ubuntu.com Sender: "kernel-team" From: Colin Ian King BugLink: https://bugs.launchpad.net/bugs/1838115 Fix i386 boot crashes and i915 graphics corruption. Upstream fix 3f8fd02b1bf1d7b (" mm/vmalloc: Sync unmappings in __purge_vmap_area_lazy()") fixes the core issue, and pull in 3 other prerequesits to allow patch to apply cleanly w/o any backporting. Tested on Ubuntu Bionic i386 and amd64 with some stress-testing with stress-ng --vm 4 --brk 1 for 5 minutes. Joerg Roedel (3): x86/mm: Check for pfn instead of page in vmalloc_sync_one() x86/mm: Sync also unmappings in vmalloc_sync_all() mm/vmalloc: Sync unmappings in __purge_vmap_area_lazy() Uladzislau Rezki (Sony) (1): mm/vmalloc.c: add priority threshold to __purge_vmap_area_lazy() arch/x86/mm/fault.c | 15 ++++++--------- mm/vmalloc.c | 27 +++++++++++++++++++++------ 2 files changed, 27 insertions(+), 15 deletions(-) Acked-by: Stefan Bader