gerrit account merge

As mentioned before I'm the admin of coreboot's code review system which uses the fine Gerrit tool. One recurring issue is that its user registration is automatic, so when you login with some OpenID provider (like Yahoo, Google, or your own) that you haven't used before, you get a new…

eduroam für Fernstudenten

Viele deutsche Universitäten arbeiten über das deutsche Forschungsnetz an Infrastruktur zusammen. Eine dieser Infrastrukturen heißt eduroam. Es handelt sich um eine Möglichkeit, sich in fremden Uninetzen - zum Beispiel dem WLAN - mit seinen Zugangsdaten der Heimatuni sicher anzumelden. Leider gibt es einige Details in der Konfiguration, die mich eine…

Random Hack: Identify services that use outdated libraries on Linux

With the GnuTLS bugfixes recently, I faced the issue to restart services that depended on it: After updating the library, daemons still run the old version until restarted. I think I've seen this automated in some distribution, but it's nice to know where those tools fetch their data. I also…

Random Hack: Calculations in GNU make

I built an efficient algorithm for decimal addition in GNU make last year. While I won't vouch for its production quality (on the other hand: why not?), it's too cute a hack to hide from the world. Unlike other implementations, this isn't using unary encoding, and as such doesn't suffer…

Adventures with Intel VT-d (IOMMU)

After spending a couple of weeks of implementing VT-d support in the Muen Kernel, it finally worked today: A device was passed through to a Linux guest while undesired accesses (initiated by the UEFI firmware's USB driver during hand-over) were blocked and reported. The last issue, which took a week…

Wahlrecht

Das deutsche Wahlrecht hat so seine Besonderheiten, zum Beispiel die 5%-Hürde. Diese "gute" Tradition wurde auch bei der Europawahl in Deutschland eingeführt, vom Bundesverfassungsgericht für diese Wahl für ungültig erklärt, um mit einer 3%-Hürde ersetzt zu werden, die dem Bundesverfassungsgericht wieder nicht gefallen hat. Das Urteil ist leider…