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 2C141C433EF for ; Wed, 13 Jul 2022 10:19:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231154AbiGMKTR (ORCPT ); Wed, 13 Jul 2022 06:19:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43916 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235830AbiGMKTO (ORCPT ); Wed, 13 Jul 2022 06:19:14 -0400 Received: from mx0b-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F4076DAB97; Wed, 13 Jul 2022 03:19:12 -0700 (PDT) Received: from pps.filterd (m0098421.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 26DA3XtV028289; Wed, 13 Jul 2022 10:19:12 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=message-id : date : mime-version : subject : to : cc : references : from : in-reply-to : content-type : content-transfer-encoding; s=pp1; bh=Y1cPLcA+CAb0DvNvtaiSf/xYHkYzUGwDbYkQ06zl5tc=; b=Q5Xaly10bjsug/92EIOV8ieO0KS8UxBIwePvQKPr4SHTEM2JbHfipGvfYganTK1JPCS5 RxNHWZ4b8lw9wHSNmH33K+wU+ZPNU8l4CjNEtnmb+cdDztcp8fAsf7cx3WIOOt97hqON BGdost3NBpti388hrRRQgVpSZdkJC36+ko+QCC7SzMQoAiaQFjXdRqZL5h9syptvElTb n/IFpybb2iRvZ3pJP8ZoaBaRwayz0TX374R46IaDhj19ISiip3mW1pO/oRIbCJFtLYQd Yy0zkxq5JlKgEDXLB2w5Ka0PEcnrWPYGFicK7dBuQb8mCLgjS4p0mM7+BWq3L9XnXvW+ eg== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3h9uycr84a-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 13 Jul 2022 10:19:11 +0000 Received: from m0098421.ppops.net (m0098421.ppops.net [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 26DADgau003657; Wed, 13 Jul 2022 10:19:11 GMT Received: from ppma04wdc.us.ibm.com (1a.90.2fa9.ip4.static.sl-reverse.com [169.47.144.26]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3h9uycr83y-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 13 Jul 2022 10:19:11 +0000 Received: from pps.filterd (ppma04wdc.us.ibm.com [127.0.0.1]) by ppma04wdc.us.ibm.com (8.16.1.2/8.16.1.2) with SMTP id 26DA869x021417; Wed, 13 Jul 2022 10:19:10 GMT Received: from b01cxnp23032.gho.pok.ibm.com (b01cxnp23032.gho.pok.ibm.com [9.57.198.27]) by ppma04wdc.us.ibm.com with ESMTP id 3h71a9kdrp-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 13 Jul 2022 10:19:10 +0000 Received: from b01ledav001.gho.pok.ibm.com (b01ledav001.gho.pok.ibm.com [9.57.199.106]) by b01cxnp23032.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 26DAJAQc57409850 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 13 Jul 2022 10:19:10 GMT Received: from b01ledav001.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 512442805A; Wed, 13 Jul 2022 10:19:10 +0000 (GMT) Received: from b01ledav001.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 3F67428059; Wed, 13 Jul 2022 10:19:07 +0000 (GMT) Received: from [9.43.25.232] (unknown [9.43.25.232]) by b01ledav001.gho.pok.ibm.com (Postfix) with ESMTP; Wed, 13 Jul 2022 10:19:06 +0000 (GMT) Message-ID: Date: Wed, 13 Jul 2022 15:49:05 +0530 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.8.0 Subject: Re: [linux-next] [5.19.0-rc1] kernel crashes while performing driver bind/unbind test with SLUB_DEBUG enabled Content-Language: en-US To: Ming Lei Cc: linux-block@vger.kernel.org, linux-scsi@vger.kernel.org, abdhalee@linux.vnet.ibm.com, sachinp@linux.vnet.com, mputtash@linux.vnet.com References: From: Tasmiya Nalatwad In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: 7i5Vot_3XKQBJOcASeCB9jNJN_Vu-dJg X-Proofpoint-ORIG-GUID: yKqqSMp6TJZ95UOMHgpIm_MVli3WRpKY X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.883,Hydra:6.0.517,FMLib:17.11.122.1 definitions=2022-07-12_14,2022-07-13_02,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 mlxlogscore=999 bulkscore=0 phishscore=0 malwarescore=0 mlxscore=0 lowpriorityscore=0 impostorscore=0 clxscore=1011 priorityscore=1501 adultscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2206140000 definitions=main-2207130041 Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org Greetings, While running plain bind/unbind test on scsi I had enabled slub_debug System has FC adapter with multipath enabled. Step 1 : Added slub_debug in /etc/default/grub saved the configuration and rebooted the machine. Step 2 : Performed normal driver bind/unbind test. On 6/15/22 06:20, Ming Lei wrote: > Hello Tasmiya, > > On Tue, Jun 14, 2022 at 03:27:37PM +0530, Tasmiya Nalatwad wrote: >> Greetings, >> >> [linux-next] [5.19.0-rc1-next-20220610] kernel crashes while performing >> driver bind/unbind test with SLUB_DEBUG enabled >> >> Traces : > > I just run plain unbind/bind on scsi_debug, and can't trigger the issue. > > Can you share your exact reproduction steps? Is dm-mpath involved? > > > Thanks, > Ming > -- Regards, Tasmiya Nalatwad IBM Linux Technology Center