From patchwork Fri Oct 5 00:29:43 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paul Mackerras X-Patchwork-Id: 10627099 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 12F3514BD for ; Fri, 5 Oct 2018 00:29:58 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0000E29329 for ; Fri, 5 Oct 2018 00:29:57 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E59F329333; Fri, 5 Oct 2018 00:29:57 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 598F429329 for ; Fri, 5 Oct 2018 00:29:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726844AbeJEHZy (ORCPT ); Fri, 5 Oct 2018 03:25:54 -0400 Received: from ozlabs.org ([203.11.71.1]:55739 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726073AbeJEHZy (ORCPT ); Fri, 5 Oct 2018 03:25:54 -0400 Received: by ozlabs.org (Postfix, from userid 1003) id 42R9cr5vp5z9s8T; Fri, 5 Oct 2018 10:29:48 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ozlabs.org; s=201707; t=1538699388; bh=ZD4TFexGy8OjrsY4iXfc/shcZr9u/yyjFkn6efKJBqE=; h=Date:From:To:Cc:Subject:From; b=V63rljhW3WGEOyOcqCnAccWcjOZsmk3K6ES1OADF9UJRkUEi+QYErBJ7VTfCyesFg 0a9f53dR41SjQcBG1DT5FtrnK/kvCBirzb0g5XDuRa96PI4+k1FL5RyICj5iVM1rwB ftX+6sAHb+YqnI6bNlUl7kaDh8AzC3wOWrVbNVG/yfPab/R5SKofY/qrEQl2w6VaRS B7+tBDh/1JuMqFIdoU/CQ9pMJ7pdTiPKrdW5f4vY5v2p3pniU3I2OQRsFV4WQblYma qjkpwvmwx84tFxV4yFOC7sjiQCmFlN0EWrKdFruE005b7aFcZEW5xdfpKe3guiwXp6 wLQxTAabTSbxQ== Date: Fri, 5 Oct 2018 10:29:43 +1000 From: Paul Mackerras To: Paolo Bonzini , Radim =?utf-8?b?S3LEjW3DocWZ?= , kvm@vger.kernel.org Cc: David Gibson , kvm-ppc@vger.kernel.org Subject: [GIT PULL] Please pull my kvm-ppc-fixes-4.19-3 tag Message-ID: <20181005002943.GA18101@fergus> MIME-Version: 1.0 Content-Disposition: inline User-Agent: Mutt/1.5.24 (2015-08-30) Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Paolo or Radim, Please do a pull from my kvm-ppc-fixes-4.19-3 tag to get one commit that fixes a host crash that I have seen when a page fault on a radix guest on POWER9 happens concurrently with a THP collapse operation. The bug is only in 4.19-rc and hence the fix does not need to be backported to any stable kernel tree. Thanks, Paul. The following changes since commit 71d29f43b6332badc5598c656616a62575e83342: KVM: PPC: Book3S HV: Don't use compound_order to determine host mapping size (2018-09-12 08:50:50 +1000) are available in the git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc tags/kvm-ppc-fixes-4.19-3 for you to fetch changes up to 6579804c431712d56956a63b1a01509441cc6800: KVM: PPC: Book3S HV: Avoid crash from THP collapse during radix page fault (2018-10-04 14:51:11 +1000) ---------------------------------------------------------------- Third set of PPC KVM fixes for 4.19 One patch here, fixing a potential host crash introduced (or at least exacerbated) by a previous fix for corruption relating to radix guest page faults and THP operations. ---------------------------------------------------------------- Paul Mackerras (1): KVM: PPC: Book3S HV: Avoid crash from THP collapse during radix page fault arch/powerpc/kvm/book3s_64_mmu_radix.c | 10 ++++++++++ 1 file changed, 10 insertions(+)