Dear Lisandro, almost all my problems were solved by removing/purging all packages from unstable (only 47 - one of these have to have caused the problem). The segfaults did not appear again after removing those packages if they do I'll write again until then that topic is solved on my side. In case you are still interested I can attach the list with the 47 unstable packages.
These unstable packages were unwillingly installed although I used the following Pinning options as suggested in the Debian Wiki: > Package: * > Pin: release a=testing > Pin-Priority: 900 > > Package: * > Pin: release o=Debian > Pin-Priority: -10 This should have prevented installing unstable packages unless explicitly told but when a package was removed from testing the unstable equivalent was automatically installed without explicit notice. Thanks for your work and help! Maria
