Hello Willy, Le 19/12/2025 à 05:31, Willy Tarreau a écrit :
First, congrats for your in-depth analysis. But as you can see above, this version is long outdated, it has been missing 14 months of fixes in its branch (roughly 548 patches) and that branch was dropped 9 months ago. A quick check shows that 64 patches were applied to the DNS code alone since then, 22 of which were bug fixes. I really don't see the point in trying to cherry-pick random patches to this dead version, it could happen to work around the problem by pure luck or break something else, and in any case nobody will be able to help you set a diagnostic on the resulting observations. Please try to reproduce the issue with a maintained version so that it is possible to analyse what's happening and a fix can be designed if the problem persists.
I can read in Zach's email : I tried with both the version deployed during the issue and latest and was able to reproduce with both.
It seems he tried recent Haproxy releases and was able to reproduce the problem.
-- Best regards, Artur
