On 2020-02-28 21:29, John David Anglin wrote: > I don't think that's the problem. I tried increasing the sleep time and your > patch but > neither worked. Had to add includes for open with your patch.
John, could you try this one: https://salsa.debian.org/debian/libmodbus/-/blob/debian/buster-backports/debian/patches/Wait-for-unit-test-server.patch It worked for me, but it could be accidental.

