Source: radicale Source-Version: 3.0.6-2 Severity: important [ Not setting as serious, even though it might be, because I don't think this is a setup directly supported by Debian? Even though upstream seems to. ]
Hi! Just upgraded my server to bullseye, and one of the errors was with radicale, which I've got setup using libapache2-mod-wsgi-py3. This fails now due to some python changes in 3.8. The error was stuff like: ,--- […] [ERROR] An exception occurred during PUT request on '….vcf': preexec_fn not supported within subinterpreters `--- The problem stems from: <https://bugs.python.org/issue34651> which caused this: <https://bugs.python.org/issue37951> but that is deemed expected, and it needs to be fixed in the callers. Such as was done in FreeIPA: <https://github.com/freeipa/freeipa/pull/3769/commits/7ee24413f0945b7d582a33795cdfc7c59471cb69> To ameliorate the situation the following got implemented in 3.9, which we have in bullseye: <https://bugs.python.org/issue36046> In radicale the problem can be found in: /usr/lib/python3/dist-packages/radicale/storage/multifilesystem/lock.py As a workaround, once I commented the conditionals around the preeexec_fn assignment the daemon stopped failing. I guess a proper fix might be to use the new user, group and extra_groups parameters to Popen. Or to avoid setting preexec_fn if there's no need to switch user and groups. Thanks, Guillem
