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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id EF7F7EB64D9 for ; Mon, 19 Jun 2023 08:28:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229489AbjFSI2Y (ORCPT ); Mon, 19 Jun 2023 04:28:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34858 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229462AbjFSI2X (ORCPT ); Mon, 19 Jun 2023 04:28:23 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C0C1AA8 for ; Mon, 19 Jun 2023 01:28:22 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 541AB60B6A for ; Mon, 19 Jun 2023 08:28:22 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id CB75CC433C0; Mon, 19 Jun 2023 08:28:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1687163301; bh=6mC7CP2PSK5GVYu0NULvIVfC/QcCHB5Iom/xqR44lCw=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=JHqWIJHU6Or0qXpG2rsDfMBnBH8ZSbGwdOSOswqP8kRxc7kB/k1ml4YnzXGfG/36n JB3aAmxB8Chs0t5cg/XN6TaOeqc7L3UPdoO+VnVfVBGaGoUDTUvu4mJR1sj5RDamvx 5b2Gx4hM6zbVeChvXXrwgmXbYp3zqiZhRjizlAKk= Date: Mon, 19 Jun 2023 10:28:17 +0200 From: Greg KH To: Jane Chu Cc: stable@vger.kernel.org, tony.luck@intel.com, dan.j.williams@intel.com, naoya.horiguchi@nec.com, linmiaohe@huawei.com, glider@google.com Subject: Re: [5.15-stable PATCH 0/2] Copy-on-write hwpoison recovery Message-ID: <2023061926-copied-glowworm-8cee@gregkh> References: <20230615015255.1260473-1-jane.chu@oracle.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230615015255.1260473-1-jane.chu@oracle.com> Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org On Wed, Jun 14, 2023 at 07:52:53PM -0600, Jane Chu wrote: > I was able to reproduce crash on 5.15.y kernel during COW, and > when the grandchild process attempts a write to a private page > inherited from the child process and the private page contains > a memory uncorrectable error. The way to reproduce is described > in Tony's patch, using his ras-tools/einj_mem_uc. > And the patch series fixed the panic issue in 5.15.y. But you are skipping 6.1.y, which is not ok as it would cause regressions when you upgrade. I'll drop this from my review queue now, please provide working backports for this and newer releases, and I'll be glad to take them. thanks, greg k-h