Building dependable COTS microkernel-based systems using MAFALDA

MAFALDA (Microkernel Assessment by Fault injection Analysis and Design Aid) is a generic tool providing quantitative information on COTS microkernels to support their integration into dependable systems. The main originality of MAFALDA relies on the features provided for both the analysis of the failure modes of the target microkernel and the design of error confinement wrappers. The paper illustrates: (i) how MAFALDA is organized and its user interface, and (ii) how it can be used to carry out fault injection campaigns. Finally, we present the experimental context of campaigns carried out on two commercial microkernels and draw the main lessons learnt