Bsd Now

This week on BSDNow, Allan is currently at EuroBSDCon! However due to the magic of video (or time travel), you still get a new episode. (You’re Welcome!). Stay tuned This episode was brought to you by Headlines Performance Improvements for FreeBSD Kernel Debugging (http://backtrace.io/blog/blog/2016/08/25/improving-freebsd-kernel-debugging/) “We previously explored FreeBSD userspace coredumps (http://backtrace.io/blog/blog/2015/10/03/whats-a-coredump). Backtrace’s debugging platform supports FreeBSD kernel coredumps too, and their traces share many features. They are constructed somewhat differently, and in the process of adding support for them, we found a way to improve performance for automated programs accessing them.” “A kernel core is typically only generated in exceptional circumstances. Unlike userspace processes, kernel routines cannot fault without sacrificing the machine’s availability. This means things like page faults and illegal instructions inside the kernel stop the machine, instead of just