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 lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (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 BE375D3F06D for ; Wed, 28 Jan 2026 14:23:23 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.1215707.1525823 (Exim 4.92) (envelope-from ) id 1vl6Rj-0005az-Rk; Wed, 28 Jan 2026 14:23:03 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 1215707.1525823; Wed, 28 Jan 2026 14:23:03 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1vl6Rj-0005as-Os; Wed, 28 Jan 2026 14:23:03 +0000 Received: by outflank-mailman (input) for mailman id 1215707; Wed, 28 Jan 2026 14:23:02 +0000 Received: from se1-gles-flk1-in.inumbo.com ([94.247.172.50] helo=se1-gles-flk1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1vl6Ri-0005aL-KY for xen-devel@lists.xenproject.org; Wed, 28 Jan 2026 14:23:02 +0000 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) by se1-gles-flk1.inumbo.com (Halon) with ESMTPS id d8dac13a-fc54-11f0-9ccf-f158ae23cfc8; Wed, 28 Jan 2026 15:23:00 +0100 (CET) Received: by verein.lst.de (Postfix, from userid 2407) id B7173227AAC; Wed, 28 Jan 2026 15:22:55 +0100 (CET) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: d8dac13a-fc54-11f0-9ccf-f158ae23cfc8 Date: Wed, 28 Jan 2026 15:22:55 +0100 From: Christoph Hellwig To: Roger Pau =?iso-8859-1?Q?Monn=E9?= Cc: Christoph Hellwig , xen-devel@lists.xenproject.org, Jens Axboe , Keith Busch , "Martin K. Petersen" , linux-nvme@lists.infradead.org, linux-kernel@vger.kernel.org, Sagi Grimberg Subject: Re: [PATCH] nvme-pci: fix parameter order in nvme_free_sgls() call Message-ID: <20260128142255.GA3210@lst.de> References: <20260127195907.34563-1-roger.pau@citrix.com> <20260128084958.GB9373@lst.de> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/1.5.17 (2007-11-01) On Wed, Jan 28, 2026 at 10:10:08AM +0100, Roger Pau Monné wrote: > > > the root device as part of a kernel update is unexpected. Sadly 6.18 > > > already contained this issue, and no-one noticed, so its impact is limited? > > > > This only affects non-IOMMU paths with a non-noop dma_unmap_phys. > > So it is a very common setup, but very severe for those. Because of > > Do you mean a "not very common setup"? Otherwise I can't parse the > sentence. Yes, sorry.