Bear – a Resilient Core for Distributed Systems

  title={Bear – a Resilient Core for Distributed Systems},
  author={Colin Nichols and Stephen Chairman and Stuart Hamilton Taylor and G. C. Eddie Member and Cybenko and Andrew Member and Richard William Campbell and Kull}
This paper describes Bear, a clean-slate, resilient operating system design intended to support military applications on scalable multi-processors. The system combines a minimalist micro-kernel with an associated hypervisor, and presents only a 120Kbyte attack surface on 64-bit x86 blade servers. MULTICS-like protections are strictly enforced through extended page tables and Intel VT-x extensions. The design utilizes multiple, overlapping, non-deterministic techniques to continually re… CONTINUE READING


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