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Wed, 04 Nov 2026 21:08:06 +0100 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Date: Wed, 04 Nov 2026 17:08:06 -0300 From: Mauricio Faria de Oliveira To: Jens Axboe Cc: Keith Busch , Christoph Hellwig , Sagi Grimberg , Chao Shi , kernel-dev@igalia.com, linux-nvme@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] nvme: reject completions for requests that are not in flight In-Reply-To: <641c7c0d-0455-490a-8811-e6eda728a7e7@kernel.dk> References: <20261103-nvme-double-cmpl-uaf-blk-mq-v1-1-b10fea474423@igalia.com> <352cfcec6865cbf636a22442511f16b1@igalia.com> <65414ea51d23fdbeb5d8b7bb4bd9d535@igalia.com> <641c7c0d-0455-490a-8811-e6eda728a7e7@kernel.dk> Message-ID: X-Sender: mfo@igalia.com Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Spam-Report: NO, Score=-4.9, Tests=ALL_TRUSTED=-3,BAYES_00=-1.9,KAM_DMARC_STATUS=0.007 X-Spam-Score: -48 X-Spam-Bar: ---- X-Rspamd-Score: -1.6 X-Rspamd-Action: no action X-Rspamd-Bar: - On 2026-11-04 17:01, Jens Axboe wrote: >> I agree that a device in this state can't be used successfully, but the >> kernel should, IMHO. >> Say, in case the device hits this due to firmware which needs an update, >> the kernel crash might prevent the user from applying it, in the first >> place. > > OK, now we're really reaching... If the device is so buggy that it can't > even do basic operations without violating protocol and crashing the > kernel, then there's nothing the kernel can (or should) do to try and > prevent that. We don't cater to severely broken firmware or devices. > > Please stop all of this nonsense. Ok; thanks for the feedback and clarifications. -- Mauricio