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 X-Spam-Level: X-Spam-Status: No, score=-7.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 37BD6C433E0 for ; Sun, 7 Feb 2021 04:51:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F309D64E92 for ; Sun, 7 Feb 2021 04:51:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229581AbhBGEvl (ORCPT ); Sat, 6 Feb 2021 23:51:41 -0500 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:39751 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229636AbhBGEvk (ORCPT ); Sat, 6 Feb 2021 23:51:40 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1612673414; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ErY66w4dhgf5LV2CZcSNdVtB+mUOpkXGVfPnBx1/S5o=; b=RzerSZmyFRgzXn6H2ezuWzN6Gj8Qpf2or8MpOpwRDsIQlz+yB53Hn1L+OFEOmLjOi0bvwo tMew8JnOtBFKgnE349v8LbPuF5IDyGitVKAqPscnTbJxfI0TZfaC2Ql2ks4pVdSJWcSUPt 1JNB+i4shOlJzOcNhi94r6KTK97x6tk= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-543-iLvtF_prOHuUHLPmKpmrdQ-1; Sat, 06 Feb 2021 23:50:12 -0500 X-MC-Unique: iLvtF_prOHuUHLPmKpmrdQ-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id C9A4B107ACE6; Sun, 7 Feb 2021 04:50:10 +0000 (UTC) Received: from localhost.localdomain (ovpn-12-23.pek2.redhat.com [10.72.12.23]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 457731C923; Sun, 7 Feb 2021 04:50:03 +0000 (UTC) Subject: Re: kernel null pointer at nvme_tcp_init_iter[nvme_tcp] with blktests nvme-tcp/012 From: Yi Zhang To: linux-nvme@lists.infradead.org, linux-block Cc: axboe@kernel.dk, Rachel Sibley , CKI Project , Sagi Grimberg References: <630237787.11660686.1612580898410.JavaMail.zimbra@redhat.com> Message-ID: <80b7184e-cdfb-cebc-fe07-a228ce57a9e7@redhat.com> Date: Sun, 7 Feb 2021 12:50:01 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.7.0 MIME-Version: 1.0 In-Reply-To: <630237787.11660686.1612580898410.JavaMail.zimbra@redhat.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Content-Language: en-US X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org The issue was introduced after merge the NVMe updates commit 0fd6456fd1f4c8f3ec5a2df6ed7f34458a180409 (HEAD) Merge: 44d10e4b2f2c 0d7389718c32 Author: Jens Axboe Date:   Tue Feb 2 07:12:06 2021 -0700     Merge branch 'for-5.12/drivers' into for-next     * for-5.12/drivers: (22 commits)       nvme-tcp: use cancel tagset helper for tear down       nvme-rdma: use cancel tagset helper for tear down       nvme-tcp: add clean action for failed reconnection       nvme-rdma: add clean action for failed reconnection       nvme-core: add cancel tagset helpers       nvme-core: get rid of the extra space       nvme: add tracing of zns commands       nvme: parse format nvm command details when tracing       nvme: update enumerations for status codes       nvmet: add lba to sect conversion helpers       nvmet: remove extra variable in identify ns       nvmet: remove extra variable in id-desclist       nvmet: remove extra variable in smart log nsid       nvme: refactor ns->ctrl by request       nvme-tcp: pass multipage bvec to request iov_iter       nvme-tcp: get rid of unused helper function       nvme-tcp: fix wrong setting of request iov_iter       nvme: support command retry delay for admin command       nvme: constify static attribute_group structs       nvmet-fc: use RCU proctection for assoc_list On 2/6/21 11:08 AM, Yi Zhang wrote: > blktests nvme-tcp/012