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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 3C749CAC5A5 for ; Tue, 23 Sep 2025 22:35:15 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 7C4088E0007; Tue, 23 Sep 2025 18:35:14 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 774688E0001; Tue, 23 Sep 2025 18:35:14 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 68A268E0007; Tue, 23 Sep 2025 18:35:14 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0013.hostedemail.com [216.40.44.13]) by kanga.kvack.org (Postfix) with ESMTP id 5461A8E0001 for ; Tue, 23 Sep 2025 18:35:14 -0400 (EDT) Received: from smtpin03.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay01.hostedemail.com (Postfix) with ESMTP id F35BD1DFEC6 for ; Tue, 23 Sep 2025 22:35:13 +0000 (UTC) X-FDA: 83921972106.03.5A78768 Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by imf10.hostedemail.com (Postfix) with ESMTP id 51928C0002 for ; Tue, 23 Sep 2025 22:35:12 +0000 (UTC) Authentication-Results: imf10.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=NfvKLIEC; spf=pass (imf10.hostedemail.com: domain of kbusch@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=kbusch@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1758666912; h=from:from:sender: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: in-reply-to:in-reply-to:references:references:dkim-signature; bh=K+REPAt7YGROMU060Sut8pDiJmmKCZ4JFkal1RQOmGs=; b=8fG2zNlxCclnrn+InF23r8uuD2A2peWTCOtvVaEERTXbz3PQ3zWmFtQ8efKXYToMpAdt1u TkWktZqR7Dd41t5Odmci51uiACz9pz5WjOS3aSiieeggteXJItVxHFv4NSJqE0FKiRBqno TiK4lWxBPydJQFzfe06Lz0bwtpDyUw8= ARC-Authentication-Results: i=1; imf10.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=NfvKLIEC; spf=pass (imf10.hostedemail.com: domain of kbusch@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=kbusch@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1758666912; a=rsa-sha256; cv=none; b=o819icRHEZ205oMqJfMRAoALe+iv7zP9VUvhmd2Ak52Dn3SQRg7gsUFVIz2dDnfvLMM/D0 BT+4q7aYr66sGIBkQcjaRyE3/zEiqurP+c9oeLcYIqW0orqUCgePwXUiT3SCyxrvKwnSWa sR/ovcBkMY69/kGj7Ov3YKXHIrxWJGI= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 34F4144593; Tue, 23 Sep 2025 22:35:11 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 68E0DC4CEF5; Tue, 23 Sep 2025 22:35:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1758666911; bh=K+REPAt7YGROMU060Sut8pDiJmmKCZ4JFkal1RQOmGs=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=NfvKLIECePVJSfIsLMzuzmM3Lfkth90P9jpbucNQ1bDMKtxnUUxV5JFtKuhdhpmWb Cw3GZEX3eQpIT/PWZ/yXnZMG824R5TCQPjlm98ugF9huAG8DeaThH3gkBcbwr/TZuE vm/De9fznWxi8yL9W3hbwpzVsdSjYKdJINx4sFLGsP2083YAha5J9C5fBwD4MqMtXT ir+xFYNttlpYqZZmrRAZCSLQPAaJ5po2rCCjv7hee+rH9n2nEI6G7JOlhDYZQf0/X1 1DkImokD6CqYRTWU50ZSiWc781Xdx+oofE6BqZqS50/4CeH67G98lYY+2B9ZA6UvmX 2kJmK3McZDdRg== Date: Tue, 23 Sep 2025 16:35:07 -0600 From: Keith Busch To: Jason Gunthorpe Cc: Leon Romanovsky , Marek Szyprowski , Abdiel Janulgue , Alexander Potapenko , Alex Gaynor , Andrew Morton , Christoph Hellwig , Danilo Krummrich , David Hildenbrand , iommu@lists.linux.dev, Jason Wang , Jens Axboe , Joerg Roedel , Jonathan Corbet , Juergen Gross , kasan-dev@googlegroups.com, linux-block@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-nvme@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, linux-trace-kernel@vger.kernel.org, Madhavan Srinivasan , Masami Hiramatsu , Michael Ellerman , "Michael S. Tsirkin" , Miguel Ojeda , Robin Murphy , rust-for-linux@vger.kernel.org, Sagi Grimberg , Stefano Stabellini , Steven Rostedt , virtualization@lists.linux.dev, Will Deacon , xen-devel@lists.xenproject.org Subject: Re: [PATCH v6 00/16] dma-mapping: migrate to physical address-based API Message-ID: References: <0db9bce5-40df-4cf5-85ab-f032c67d5c71@samsung.com> <20250912090327.GU341237@unreal> <20250920155352.GH10800@unreal> <20250923170936.GA2614310@nvidia.com> <20250923222216.GC2617119@nvidia.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250923222216.GC2617119@nvidia.com> X-Rspam-User: X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: 51928C0002 X-Stat-Signature: nyfkq6kbkd5etq8bosin3tbcorbbpy87 X-HE-Tag: 1758666912-392831 X-HE-Meta: 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 37lATKkY iJeJtCSuP8grHlRkeON9nprwHelQ9/YVbd5qwtJdbSgUj0dKQGKch6LnOQ0j1T6tlTfFSnE5EuaOqot76DuoWiEGLSZFcf/9FTSxiKlkWNVJX/omyjYlNPKQmcwDDCawQNflBGsIWsA7A2cdIIiJnps4hCbeEkpiTVRPricnLGNGMLGEJbqfqb5a1h6iR62yuNIrrAxqg4cOfhcKI/B8Tfpd0LkP1OFHd0UUYyDvLGcFpqU9GNpWGGuBGSdArRxJDv5R3yQi3f4jT9SHInlV5aLkQyB0GpTaV7f46yv4zw6V4SCSLvmVCrXY0GvhzOY+xiHoDCvAMKhn/q8O+ufoE9wm4I+kiddijvvNR X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Tue, Sep 23, 2025 at 07:22:16PM -0300, Jason Gunthorpe wrote: > Very rare is a different perspective, I mis-thought it was happening > reproducible all the time.. Yes, sorry for the false alarm. I think we got unlucky and hit it on one of the first boots from testing linux-next, so knee-jerk reaction was to suspect the new code that showed up in the stack.