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AsiaBSDCon 2009 Paper Session. The last part of the two. Abstract: The presentation is focused on explaining theoretical approaches and pratical aspect of the locking support in the FreeBSD kernel. The locking KPI as well as underlying mechanisms and interactions with the scheduler will be analized and discussed deeply. Typical locking strategies and some edge cases will also be shown along with a detailed explanation about how to debug locking problems (deadlocks and races primirally …

AsiaBSDCon 2009 Paper Session. The first part of the two. Abstract: The presentation is focused on explaining theoretical approaches and pratical aspect of the locking support in the FreeBSD kernel. The locking KPI as well as underlying mechanisms and interactions with the scheduler will be analized and discussed deeply. Typical locking strategies and some edge cases will also be shown along with a detailed explanation about how to debug locking problems (deadlocks and races primirally …

Rafal Jaworowski, FreeBSD on high performance multi-core embedded PowerPC systems, AsiaBSDCon2009: This paper describes low level design and implementation of the FreeBSD operating system port for the MPC8572 system-on-chip device, a high-end member of the Freescale PowerQUICC III family. The primary focus of this work is describing how the multi-core operation was brought forward and full SMP capabilities achieved, but other major components developed in the course of this project, device …

AsiaBSDCon 2009 Paper Session. Abstract: In this paper we describe usage of FreeBSD operating system for IPv6 Multicast routing platform in SOI-Asia Project. SOI-Asia project is platform to deliver realtime lecture via UniDirectional Link of satellite to several countries in Asia. Because of limited bandwidth in satellite, we use IPv6 multicast to deliver material of lecture and realtime video and audio lecture. We also describe human resources development of operational aspect of the …

M. Warner Losh, An Overview of FreeBSD/mips, AsiaBSDCon2009: Embedded FreeBSD has been expanding its reach over the past few years. While only recently committed to the tree, the FreeBSD/mips port’s history extends back over a decade. FreeBSD has been running on the MIPS architecture since the FreeBSD 3.x time frame (1999!). Numerous efforts over the years have been made to get FreeBSD running on MIPS hardware. These efforts don’t start from scratch but reuse past efforts and code from other …