The most complete, authoritative technical guide to the FreeBSD
kernel's internal structure has now been extensively updated to
cover all major improvements between Versions 5 and 11.
Approximately one-third of this edition's content is completely
new, and another one-third has been extensively rewritten. Three
long-time FreeBSD project leaders begin with a concise overview of
the FreeBSD kernel's current design and implementation. Next, they
cover the FreeBSD kernel from the system-call level down-from the
interface to the kernel to the hardware. Explaining key design
decisions, they detail the concepts, data structures, and
algorithms used in implementing each significant system facility,
including process management, security, virtual memory, the I/O
system, filesystems, socket IPC, and networking. This Second
Edition * Explains highly scalable and lightweight virtualization
using FreeBSD jails, and virtual-machine acceleration with Xen and
Virtio device paravirtualization * Describes new security features
such as Capsicum sandboxing and GELI cryptographic disk protection
* Fully covers NFSv4 and Open Solaris ZFS support * Introduces
FreeBSD's enhanced volume management and new journaled soft updates
* Explains DTrace's fine-grained process debugging/profiling *
Reflects major improvements to networking, wireless, and USB
support Readers can use this guide as both a working reference and
an in-depth study of a leading contemporary, portable, open source
operating system. Technical and sales support professionals will
discover both FreeBSD's capabilities and its limitations.
Applications developers will learn how to effectively and
efficiently interface with it; system administrators will learn how
to maintain, tune, and configure it; and systems programmers will
learn how to extend, enhance, and interface with it. Marshall Kirk
McKusick writes, consults, and teaches classes on UNIX- and
BSD-related subjects. While at the University of California,
Berkeley, he implemented the 4.2BSD fast filesystem. He was
research computer scientist at the Berkeley Computer Systems
Research Group (CSRG), overseeing development and release of 4.3BSD
and 4.4BSD. He is a FreeBSD Foundation board member and a long-time
FreeBSD committer. Twice president of the Usenix Association, he is
also a member of ACM, IEEE, and AAAS. George V. Neville-Neil hacks,
writes, teaches, and consults on security, networking, and
operating systems. A FreeBSD Foundation board member, he served on
the FreeBSD Core Team for four years. Since 2004, he has written
the "Kode Vicious" column for Queue and Communications of the ACM.
He is vice chair of ACM's Practitioner Board and a member of Usenix
Association, ACM, IEEE, and AAAS. Robert N.M. Watson is a
University Lecturer in systems, security, and architecture in the
Security Research Group at the University of Cambridge Computer
Laboratory. He supervises advanced research in computer
architecture, compilers, program analysis, operating systems,
networking, and security. A FreeBSD Foundation board member, he
served on the Core Team for ten years and has been a committer for
fifteen years. He is a member of Usenix Association and ACM.
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