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 9FD12C05027 for ; Mon, 6 Feb 2023 06:20:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229458AbjBFGUt (ORCPT ); Mon, 6 Feb 2023 01:20:49 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33876 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229493AbjBFGUl (ORCPT ); Mon, 6 Feb 2023 01:20:41 -0500 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DC7DB5599 for ; Sun, 5 Feb 2023 22:20:40 -0800 (PST) Received: by verein.lst.de (Postfix, from userid 2407) id D4A1268C7B; Mon, 6 Feb 2023 07:20:37 +0100 (CET) Date: Mon, 6 Feb 2023 07:20:37 +0100 From: Christoph Hellwig To: Yi Zhang Cc: linux-block , Christoph Hellwig Subject: Re: [bug report] RIP: 0010:blkg_free+0xa/0xe0 observed on latest linux-block/for-next Message-ID: <20230206062037.GA9567@lst.de> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.17 (2007-11-01) Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org On Mon, Feb 06, 2023 at 01:22:23PM +0800, Yi Zhang wrote: > Hello > CKI reported one new issue with the latest linux-block/for-next, pls > help check it, thanks. > > linux-block.git@for-next > commit: 99bd489eac97 > > [ 4407.784047] Running test [R:13334567 T:10 - Storage - block - What actual test is this? > storage fio numa - Kernel: 6.2.0-rc6] > [ 4509.133240] BUG: kernel NULL pointer dereference, address: 0000000000000000 > [ 4509.133654] #PF: supervisor read access in kernel mode > [ 4509.133930] #PF: error_code(0x0000) - not-present page > [ 4509.134206] PGD 0 P4D 0 > [ 4509.134373] Oops: 0000 [#1] PREEMPT SMP PTI > [ 4509.134579] CPU: 2 PID: 965 Comm: auditd Tainted: G I > 6.2.0-rc6 #1 > [ 4509.135384] Hardware name: HP ProLiant DL360p Gen8, BIOS P71 05/24/2019 > [ 4509.135758] RIP: 0010:blkg_free+0xa/0xe0 Can you resolve this to a line using gdb vmlinux l *(blkg_free+0xa/0xe0)