For those that do see this issue, is it reproducible from update-manager? That is, once it happens, if you cancle/quit update-manager, and then try to use it to update again, does it again hang (e.g., on php7.0-xml as in this bug report).
If so, we might be able to get some more debugging by modifying the postinst locally.
@f-abeni: do you have any local modifications to your php-xml .ini file snippet? Also, if you do re-encounter the hang, does /var/log/apt/history.log contain the "Use of uninitialized value" errors already (before you hit cancel or kill update-manager)?
For those that do see this issue, is it reproducible from update-manager? That is, once it happens, if you cancle/quit update-manager, and then try to use it to update again, does it again hang (e.g., on php7.0-xml as in this bug report).
If so, we might be able to get some more debugging by modifying the postinst locally.
@f-abeni: do you have any local modifications to your php-xml .ini file snippet? Also, if you do re-encounter the hang, does /var/log/ apt/history. log contain the "Use of uninitialized value" errors already (before you hit cancel or kill update-manager)?