Le mar. 22 sept. 2026 à 02:52, Collin Funk <[email protected]> a écrit : > > Laurent Lyaudet <[email protected]> writes: > > > Le lun. 21 sept. 2026 à 21:38, Pádraig Brady <[email protected]> a écrit : > >> > >> On 21/09/2026 18:33, Laurent Lyaudet wrote: > >> > Le lun. 21 sept. 2026 à 15:16, Pádraig Brady <[email protected]> a > >> > écrit : > >> >> > >> >> I noticed OOMs and swap thrashing with tests/od/big-w.sh > >> >> when preparing the coreutils 9.12 release recently. > >> >> The attached patchset should improve this significantly. > >> >> > >> >> cheers, > >> >> Padraig > >> >> > >> >> > >> > Hello Padraig, > >> > > >> > It seems you forgot to attach the patchset. > >> > >> Oops I mean't the patchset following in the thread. > >> I've now pushed these changes which you can see at: > >> > >> https://github.com/coreutils/coreutils/compare/cecd945aa...6bfc90019 > >> cheers, > >> Padraig > > Ah. I'm glad I made this remark then, > > because I may learn something: > > - I had your first email and the 4 patches email sorted differently in > > distinct parts of my mail box, > > - but I do see here > > https://lists.gnu.org/archive/html/coreutils/2026-09/threads.html > > that all 5 emails are in the same thread, > > - whilst I don't see the common part in the subject or the body of the email > > that makes this "same thread" analysis possible. > > > > Do you know how it is possible that the first email is put in the same > > thread that the 4 after it? > > Which data is used by the thread detection algorithm in this case, please? > > I'm not sure what email client you use, so I can't give specific advice. > However, they all (as far as I can tell) provide a way to see email > headers. If you are using the Gmail web client, it should be a button > with three dots at the top right, followed by "Show source". > > If you look at his first email, the headers will have the following: > > Message-ID: <[email protected]> > > And since it is not a reply, it will be missing the "In-Reply-To" > header. > > If you look at his second email, it will contain the following headers: > > Message-ID: <[email protected]> > In-Reply-To: <[email protected]> > > Note that the "Message-ID" for each of his emails is unique. And each > message sets the "In-Reply-To" header to the previous message in the > thread. That is, "[PATCH 2/4]" sets it's "In-Reply-To" to "[PATCH 1/4]", > "[PATCH 3/4]" sets it's "In-Reply-To" to "[PATCH 3/4]", and so on. > > That is how the lists.gnu.org preserves the ordering. Other mail clients > choose to determine threads by the subject. This doesn't work well on > mailing lists where the subject changes as the discussion moves to > different topics. Or when dealing with patches from 'git-send-email'. > > I notice that Gmail's web UI threads based on the subject and puts them > in a weird order, as mentioned. So I suspect you are using that. I'm not > sure if you can change it there, but I would suggest downloading a > dedicated mail client. You will likely find it easier to track threads > if you subscribe to mailing lists. > > Thunderbird [1] is very popular and seems friendlier than alternatives > that might be in a terminal with hotkeys you are not comfortable with. > E.g., I use Gnus [2], which will likely be confusing unless you already > use Emacs. If you decide to use Thunderbird, you might find this > documentation from the Linux Kernel helpful [3]. It describes how to use > plaintext mail instead of HTML, which some mailing lists will reject. > > Hope that explination helps, and wasn't too long. :) > > Collin > > [1] https://www.thunderbird.net/en-US/ > [2] https://www.gnus.org/ > [3] > https://www.kernel.org/doc/html/v4.14/process/email-clients.html#thunderbird-gui
Hello Collin, Thanks for your nice reply :). Indeed, it is surprising that GMail webmail doesn't use In-Reply-To or References header then. > Note that the "Message-ID" for each of his emails is unique. And each > message sets the "In-Reply-To" header to the previous message in the > thread. That is, "[PATCH 2/4]" sets it's "In-Reply-To" to "[PATCH 1/4]", > "[PATCH 3/4]" sets it's "In-Reply-To" to "[PATCH 3/4]", and so on. I don't see this when I look at the headers in the webmail: All the subsequent emails "[PATCH x/4]" keep the same In-Reply-To and References headers: In-Reply-To: <[email protected]> References: <[email protected]> It means that GMail must use the timestamps to determine the order in the thread. Do you really see In-Reply-To: <[email protected]> In-Reply-To: <[email protected]> ... on your side? It would mean that something strange happens during the email routing with SMTP (on the GMail servers? or somewhere in-between?). Regarding Thunderbird, I used it between 2004 and 2016 or so I think. In 2016, I had a problem with my laptop with all the files in my "Desktop" folder erased, including 6 months of bibliographic work on graph minors. I opened my laptop and physically removed the WifiCard on the laptop PCB/mainboard. And I stopped connecting this laptop to the Internet. And used GMail webmail on the laptop of my mother until I bought another laptop. Since GMail at approximately this time required to "Allow less secure mail clients" because Thunderbird didn't handle all the details of OAuth or something like that, I never switched back to Thunderbird. Spoiler : my 2016 laptop that was always with me without WifiCard and never connected to the Internet still was the place of bizarre regression/sabotage of my scientific articles. I was writing them unconnected, then was burning a CD or DVD with the result to transfer them to other PCs connected on the Internet to put them on my website. It wasn't enough to remove the WifiCard. Because of radiofrequences on the PCB? I saw a POC that you can exchange data between a motherboard and another device using the copper tracks on the motherboard as small antennas. The data rate is low, but clearly enough for mouse data and keyboard data capture, and modifying text documents like LaTeX source file. This kind of facts makes me think that going for the most convenient may be justified, when your efforts just lead to illusion of security as said by Mitnick. Thanks for trying to help me. Clearly in my mind I'm stuck when I try to know what is best between GMail webmail or Thunderbird. Have a nice day, best regards, Laurent
