Hi Santiago! On Tue, Jul 14, 2026 at 04:54:07PM +0200, Santiago Vila wrote: > Package: src:sphinx > Version: 8.1.3-5 > Severity: serious > Tags: trixie > Control: fixed -1 9.1.0-4 > Control: affects -1 src:blender-doc src:cp2k src:flint src:groonga src:kitty > src:openmpi src:python3.13 > > Dear maintainer: > > During a rebuild of all packages in trixie (after the 13.6 point release), > several packages using sphinx FTBFS in this way: > > ------------------------------------ > writing output... > building [html]: targets for 507 source files that are out of date > updating environment: [new config] 507 added, 0 changed, 0 removed > > Exception occurred: > File "/usr/lib/python3.13/multiprocessing/connection.py", line 399, in _recv > raise EOFError > EOFError > ------------------------------------ > > The above example is for python3.13 and a full log is available here: > > https://tests.reproducible-builds.org/debian/rbuild/trixie/amd64/python3.13_3.13.5-2+deb13u3.rbuild.log.gz > > I'm using the affects line for all known affected packages. > > Note: Please keep the bug open until it's fixed in stable (using the > changelog in an upload for trixie is of course ok). I've marked the bug > as fixed in forky/sid because I can't reproduce the issue in forky/sid, > so the bug should not affect sphinx in forky/sid. > > If required I can offer a VM to reproduce.
I created a debian/trixie branch in git and cherry-picked the fix there: https://salsa.debian.org/python-team/packages/sphinx/-/commits/debian/trixie?ref_type=heads Some pipeline jobs failed, because python3.13 interpreter segfaults. This is a different issue, and it looks more like a bug in python3.13, not in sphinx. It may be the same issue as #1142107 (also python3.13, also segfault, also Trixie). I cannot reproduce it in my Trixie chroot (I have just built sphinx without issues 3 times in a row). If you have this segfault in your VM, maybe you can obtain a C stack trace with gdb? Pybuild prints the command it runs, so you just need to replace "python3.13" with "gdb --args python3.13": I: pybuild base:311: cd /build/package/package/.pybuild/cpython3_3.13/build; python3.13 -m pytest --verbose --ignore tests/test_writers/test_api_translator.py My hypothesis is that it broke between python3.13 3.13.5-2+deb13u2 and 3.13.5-2+deb13u3, so if you can test with 3.13.5-2+deb13u2, that would also help. Or give me access and I will test when I have time, if you like that option more. -- Dmitry Shachnev
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