On Tue, 4 Jan 2022 09:16:54 +0100, Christoph Hellwig wrote: > On Tue, Jan 04, 2022 at 05:07:20PM +0900, Akira Yokosawa wrote: >>> Current linux-next. But I've also seen it with mainline from a few days >>> ago. >>> >> >> Still can't reproduce with sphinx-build 4.3.2 on Debian bullseye. >> >> What version of Sphinx are you using? > > The one that comes from Debian: > > hch@brick:~/work/linux-next$ sphinx-build --version > sphinx-build 3.4.3 > Ah, I'm not able to test distro Python packages at the moment. At least I tried Sphinx 3.4.3 installed in a venv, but I could not reproduce the error you encountered. Hmm??