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Miller" , Eric Dumazet , Paolo Abeni , Simon Horman , Andrew Lunn , Gerd Hoffmann , Vivek Kasireddy , Sumit Semwal , Christian =?iso-8859-1?Q?K=F6nig?= , Shuah Khan , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-media@vger.kernel.org, linaro-mm-sig@lists.linaro.org, linux-kselftest@vger.kernel.org, sdf@fomichev.me, razor@blackwall.org, daniel@iogearbox.net, almasrymina@google.com, matttbe@kernel.org, skhawaja@google.com, dw@davidwei.uk, Joe Damato , Bobby Eshleman Subject: Re: [PATCH net-next v5 3/3] selftests/net: devmem.py: add check_rx_large_niov Message-ID: References: <20260708-tcpdm-large-niovs-v5-0-34bf6fac941b@meta.com> <20260708-tcpdm-large-niovs-v5-3-34bf6fac941b@meta.com> <20260721110903.34840531@kernel.org> <20260724143001.5afa8631@kernel.org> <20260724150716.07c49ad8@kernel.org> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260724150716.07c49ad8@kernel.org> On Fri, Jul 24, 2026 at 03:07:16PM -0700, Jakub Kicinski wrote: > On Fri, 24 Jul 2026 14:41:47 -0700 Stanislav Fomichev wrote: > > > > Talked to Stan and he mentioned the original idea was not necessarily > > > > just for link down, but any test that could be considered disruptive to > > > > other tests, with the idea to eventually introduce some scheduling > > > > (postpone disruptive until the end). > > > > > > Perhaps have such conversations on the list? IDK what Stan has in mind. > > > > I don't have much to add so I didn't post on the list. In my mind, disruptive > > started as "anything that can lead to a soft reset". But since the > > sockets tend to survive these well, I do agree that your definition > > of "link goes down" is a better fit. > > My recollection was basically that the test is not safe to run over > SSH (without tmux). Hence the link down concern. If we say soft reset > that'd cover 95% of the tests so it's not very useful. > > The existing doc and README already document the link down AFAICT. Indeed, so I'll just test and confirm if devmem's existing ksft_disruptive tests do or can cause link down, and submit a patch removing for those that don't.