Hey there, ok problem seems to be solved. I changed all website-configs to get handled by php7.0-fpm instead of php5-fpm and removed all php5* packages.
After configuring apache with the following commands and restarting it the inventory works just fine as it should: a2enmod proxy_fcgi setenvif a2enconf php7.0-fpm systemctl restart apache2 So it seems this is no kernel bug as we all thought before. Sorry for the fuss. Regards codiflow Otto Kekäläinen <o...@debian.org> schrieb am Wed, 15 May 2019 08:35:04 +0300: > Hello! > > > Downgrading the package is not working anymore - it was a dirty > > workaround for about two months: > > apt-get install libmariadbclient18=10.1.26-0+deb9u1 > > apt-mark hold libmariadbclient18 > > Maybe because the problem is not in that package, but some other > binary in the chain of what Apache/Nginx/PHP uses or has been built > with? > > > Removing of libmysqlclient18 would also remove php5-mysql* which is > > not what I want. > > Do you have some custom PHP installation? > > I don't see any such package in Stretch: > > root@d6b6aa0e9494:/build# cat /etc/os-release > PRETTY_NAME="Debian GNU/Linux 9 (stretch)" > > root@d6b6aa0e9494:/build# apt-get install php5-mysql > Package php5-mysql is not available, but is referred to by another > package. This may mean that the package is missing, has been > obsoleted, or is only available from another source > E: Package 'php5-mysql' has no installation candidate > > > > Please provide me with some steps on how to reproduce the bug. > The steps can for example start with: > docker run -it debian:stretch bash > apt-get update > apt-get instal ....