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 09277C4332F for ; Thu, 29 Dec 2022 12:57:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233104AbiL2M5e (ORCPT ); Thu, 29 Dec 2022 07:57:34 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43186 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229611AbiL2M5c (ORCPT ); Thu, 29 Dec 2022 07:57:32 -0500 Received: from mail.holmansrus.com (unknown [143.59.183.90]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B8E5F13D5D for ; Thu, 29 Dec 2022 04:57:30 -0800 (PST) Received: from localhost (localhost.localdomain [127.0.0.1]) by mail.holmansrus.com (Postfix) with ESMTP id B7B62E1D70; Thu, 29 Dec 2022 06:57:29 -0600 (CST) Received: from mail.holmansrus.com ([127.0.0.1]) by localhost (mail.holmansrus.com [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id Za0-y-PG-rg2; Thu, 29 Dec 2022 06:57:29 -0600 (CST) Received: from localhost (localhost.localdomain [127.0.0.1]) by mail.holmansrus.com (Postfix) with ESMTP id 0003CE1CFB; Thu, 29 Dec 2022 06:57:28 -0600 (CST) X-Virus-Scanned: amavisd-new at holmansrus.com Received: from mail.holmansrus.com ([127.0.0.1]) by localhost (mail.holmansrus.com [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id rEt54f3WH5uz; Thu, 29 Dec 2022 06:57:28 -0600 (CST) Received: from mail.holmansrus.com (mail.holmansrus.com [10.90.0.246]) by mail.holmansrus.com (Postfix) with ESMTP id AB6E3E1D01; Thu, 29 Dec 2022 06:57:28 -0600 (CST) Date: Thu, 29 Dec 2022 06:57:28 -0600 (CST) From: Walt Holman To: Greg KH Cc: linux-kernel Message-ID: <255732713.91.1672318648501.JavaMail.zimbra@holmansrus.com> In-Reply-To: References: <933489772.83.1672266579857.JavaMail.zimbra@holmansrus.com> Subject: Re: [PATCH 6.1 0000/1146] 6.1.2-rc1 review MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Originating-IP: [10.90.0.246] X-Mailer: Zimbra 8.8.15_GA_4484 (ZimbraWebClient - GC108 (Linux)/8.8.15_GA_4481) Thread-Topic: 6.1.2-rc1 review Thread-Index: ersqxz6lVnikKAcGC4xoUSRYuHBNOQ== Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org ----- On Dec 29, 2022, at 1:13 AM, Greg KH gregkh@linuxfoundation.org wrote: > On Wed, Dec 28, 2022 at 04:29:39PM -0600, Walt Holman wrote: >> > This is the start of the stable review cycle for the 6.1.2 release. >> > There are 1146 patches in this series, all will be posted as a response >> > to this one. If anyone has any issues with these being applied, please >> > let me know. >> > >> > Responses should be made by Fri, 30 Dec 2022 14:41:29 +0000. >> > Anything received after that time might be too late. >> > >> > The whole patch series can be found in one patch at: >> > [ https://www.kernel.org/pub/linux/kernel/v6.x/stable-review/patch-6.1.2-rc1.gz >> > | https://www.kernel.org/pub/linux/kernel/v6.x/stable-review/patch-6.1.2-rc1.gz >> > ] > or in the git tree and branch at: >> > git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git >> > linux-6.1.y >> > and the diffstat can be found below. >> > >> > thanks, >> > >> > greg k-h >> > >> > ------------- >> >> Hello, >> >> I'm getting a NULL Pointer Dereference when shutting down or rebooting. It >> happens just as it tries to shut down the swap device ( /dev/dm-3 ). This >> happens late in the shutdown process and nothing gets saved in the logs. >> However, I've attached a photo of my screen showing the Oops and stack trace. >> Let me know if there's anything you'd like me to try. > > Does this happen with 6.1.1 also? > > Can you use 'git bisect' to track down the offending change? > > thanks, > > greg k-h This does NOT happen with 6.1.1 I'll get on bisecting here in a bit. I'm wondering about the changes that were made to blk-mq.c That's where the new quiesce code and the null pointer dereference occur. I'll start by rolling back that commit and see what happens before bisecting. -Walt