@misc{RamsauerBulwahnLohmannetal., author = {Ramsauer, Ralf and Bulwahn, Lukas and Lohmann, Daniel and Mauerer, Wolfgang}, title = {The Sound of Silence: Mining Security Vulnerabilities from Secret Integration Channels in Open-Source Projects}, series = {MiniDebConf Regensburg (MDC) 2021}, journal = {MiniDebConf Regensburg (MDC) 2021}, address = {Regensburg}, organization = {Ostbayerische Technische Hochschule Regensburg}, language = {en} } @misc{Mauerer, author = {Mauerer, Wolfgang}, title = {Embedded Linux Quality Assurance: How to Not Lie with Statistics}, series = {Embedded Linux Conference North America ; OpenIoTSummit North America}, journal = {Embedded Linux Conference North America ; OpenIoTSummit North America}, abstract = {Embedded Linux drives an every-increasing number of appliances in many domains and applications, some even real-time and/or safety critical. Traditional quality assurance of such systems is based on testing and formal verification, but the huge amount of code and the rapid dynamics of the Linux ecosystem, as well as fundamental limitations of formal methods make these approaches unsatisfactory. Statistical quality assurance for reliability, error rates, maximal latencies etc. is needed. We will discuss current best practises, how to design and run automated statistical tests that capture relevant information, and how to properly evaluate the resulting data. Practical real-world examples and recipes are played through using the open source R language. Most importantly, we identify common mistakes in (over-)interpreting statistical results and predictions that may eventually harm people.}, language = {en} } @misc{RamsauerKiszkaMauerer, author = {Ramsauer, Ralf and Kiszka, Jan and Mauerer, Wolfgang}, title = {Building Mixed Criticality Linux Systems with the Jailhouse Hypervisor}, series = {Embedded Lunux Conference + OpenIoTSummit, Portland, OR, 21.-23.02.2017}, journal = {Embedded Lunux Conference + OpenIoTSummit, Portland, OR, 21.-23.02.2017}, abstract = {The partitioning hypervisor Jaihouse allows us to run safety critical and uncritical applications in parallel on a single SoC. We present our experiences when porting a safety and real-time critical existing application as a Jailhouse guest. It shows a novel and promising approach for implementing mixed-criticality applications with real-time requirement while not loosing the benefits of Linux. This is done by static partitioning of hardware resources; guests do not interfere. We will present a multicopter platform running the real-time critical flight stack in an isolated Jailhouse guest. This proves the practicability of Jailhouse as well as the suitability for real-time safety critical systems by porting an existing application to a Jailhouse cell. We stress its concept and show up current hardware limitations, like undesired behaviour and present possible workarounds and solutions.}, language = {en} } @misc{RamsauerDudaBulwahnetal., author = {Ramsauer, Ralf and Duda, Sebastian and Bulwahn, Lukas and Mauerer, Wolfgang}, title = {The list is our process! An analysis of the kernel's email-based development process}, series = {Embedded Linux Conference Europe, Lyon 28.10.2019}, journal = {Embedded Linux Conference Europe, Lyon 28.10.2019}, language = {en} } @misc{RamsauerDudaMauereretal., author = {Ramsauer, Ralf and Duda, Sebastian and Mauerer, Wolfgang and Bulwahn, Lukas}, title = {The list is our process: An analysis of the kernel's email-based development process}, series = {Linux Plumbers Conference, Lisbon September 9, 2019}, journal = {Linux Plumbers Conference, Lisbon September 9, 2019}, language = {en} } @misc{RamsauerKiszkaLohmannetal., author = {Ramsauer, Ralf and Kiszka, Jan and Lohmann, Daniel and Mauerer, Wolfgang}, title = {Implementierung gemischt kritischer Systeme durch statische Hardwarepartitionierung}, series = {Fr{\"u}hjahrstreffen der Fachgruppen Betriebssysteme, Hannover, 2. M{\"a}rz 2018}, journal = {Fr{\"u}hjahrstreffen der Fachgruppen Betriebssysteme, Hannover, 2. M{\"a}rz 2018}, language = {de} } @misc{Mauerer, author = {Mauerer, Wolfgang}, title = {Safety, Security, Quality: Artificial Intelligence versus Common Sense}, series = {Open Source Summit North America and Embedded Linux Conference North America 2020}, journal = {Open Source Summit North America and Embedded Linux Conference North America 2020}, language = {en} } @misc{RamsauerKiszkaMauerer, author = {Ramsauer, Ralf and Kiszka, Jan and Mauerer, Wolfgang}, title = {Spectre and Meltdown vs. Real-Time: How Much do Mitigations Cost?}, series = {Embedded Linux Conference Europe 2018, October 22 - 24, 2018, Edinburgh, UK}, journal = {Embedded Linux Conference Europe 2018, October 22 - 24, 2018, Edinburgh, UK}, language = {en} } @misc{Mauerer, author = {Mauerer, Wolfgang}, title = {Open Source in Research and Reality}, series = {Open Source Summit North America and Embedded Linux Conference North America 2020}, journal = {Open Source Summit North America and Embedded Linux Conference North America 2020}, language = {en} } @misc{RamsauerLohmannMauerer, author = {Ramsauer, Ralf and Lohmann, Daniel and Mauerer, Wolfgang}, title = {Quantifying Upstream Integration with PaStA}, series = {LTSI Workshop @ ELC17}, journal = {LTSI Workshop @ ELC17}, language = {en} } @misc{Mauerer, author = {Mauerer, Wolfgang}, title = {Approaches to Ultra Long-Term System Maintenance}, series = {Embedded Linux Conference Europe (Berlin), 2016}, journal = {Embedded Linux Conference Europe (Berlin), 2016}, language = {en} } @misc{Mauerer, author = {Mauerer, Wolfgang}, title = {Socio-Technical Aspects of Long Term Embedded Systems Maintenance}, series = {Embedded Linux Conference, April 4-6, 2016, San Diego}, journal = {Embedded Linux Conference, April 4-6, 2016, San Diego}, language = {en} } @misc{MintelRamsauerLohmannetal., author = {Mintel, Mario and Ramsauer, Ralf and Lohmann, Daniel and Scherzinger, Stefanie and Mauerer, Wolfgang}, title = {Fork {\`a} la carte f{\"u}r In-Memory-Datenbanken}, series = {Fr{\"u}hjahrstreffen der Fachgruppen Betriebssysteme, Hamburg, 17. M{\"a}rz 2022}, journal = {Fr{\"u}hjahrstreffen der Fachgruppen Betriebssysteme, Hamburg, 17. M{\"a}rz 2022}, language = {de} }