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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 0827EC7618A for ; Mon, 20 Mar 2023 15:06:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=5wFxlEvYg3XuK9Hfobj35J656qg9kxC6L0CkESFltog=; b=UBmTqp6tgeYHk4RTPerjwfAxxu xMtFrNUqfHd6rPngjFXXw7vW8/hlQ3/j68I7N7HuMLodQyg7R1o+OV9R3IQ2TpA4tTjeEBAOc+FGx l0Awg/WAIDBTWuTLgc4tEBvqDJxrzijcSdkGea8IsFn7Uvkd8lgB2Uw4ubPheB84KRBYJpfe9Ujs5 rksa2L7HrZuNuO1TiGmMqsm42OcteCxo4DYJuPFIVp2wx/tl+MLpX2ISnFlC54TObSMZ1SOXJSJ4m Wi3ixbRkAskagBtfY5Nw1ALZVYXsV6wRyYXOheaxtUA41RE8jzaJaMoHCjwEoZt4L4XIQadM8DRdL rLZeyS4A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1peH5f-009SpH-1r; Mon, 20 Mar 2023 15:06:27 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1peH5c-009SoS-1o for linux-nvme@lists.infradead.org; Mon, 20 Mar 2023 15:06:25 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id AE9EC61582; Mon, 20 Mar 2023 15:06:23 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1AAB6C4339C; Mon, 20 Mar 2023 15:06:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1679324783; bh=zfiZOAPp5FrfqQPtr7uSanqGFntqU22xr7Kssg7eP9I=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=uY2AKHdqma7uGiSCP1xaJVq/74NF+E4/g6N43TOXO1oOIZqTUM6uFu4sieJz/+i2d bnyMYEvXHol/HN9TBscHdxg+QiwCIf4zSIwd1YpzInaaFX6rVgN8JlzLPECeU4p/j3 Hj3EtKIVHhlzQ8sF/Gu7n1PMQHh2QEB1hqj/8kuTmdrtd4f6giodUA0Mdk1ChhMiIb KvhHpbcvSR44ZlgnwawGbQuRXzlsj9BBCAtbbkN4hpfqf37BHsMf6rwpakpbelFs3I CCTVCVkf8vswGBwhYqRtDbBr8QUkDydd6BdYy/M723QkHc4Lq8f8VJbl/hRc5x7pA5 A6eE1ifYPGEpQ== Date: Mon, 20 Mar 2023 09:06:20 -0600 From: Keith Busch To: Daniel Wagner Cc: Sagi Grimberg , Christoph Hellwig , "linux-nvme@lists.infradead.org" Subject: Re: nvme-tcp poll queue crash Message-ID: References: <20230320141912.avtauwpy5t4x2rvz@carbon.lan> <20230320145113.md6dcyv22yqhppmz@carbon.lan> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230320145113.md6dcyv22yqhppmz@carbon.lan> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230320_080624_661245_9B37FAE0 X-CRM114-Status: GOOD ( 10.93 ) X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org On Mon, Mar 20, 2023 at 03:51:13PM +0100, Daniel Wagner wrote: > On Mon, Mar 20, 2023 at 04:36:58PM +0200, Sagi Grimberg wrote: > > This was reported and is discussed in thread: > > nvme-tcp: kernel NULL pointer dereference, address: 0000000000000034 > > Thanks, I couldn't remember this discussion. It just happened late last week, so no worries. I believe we can get rid of bio and bdev dependency, and I am working on detangling how to get the cookie through without these.