This appendix has been partially adapted from a paper delivered by Steve Whitehouse at Linux Symposium 2009, which can be found at http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=blob;f=Documentation/filesystems/gfs2-glocks.txt;h=04 94f78d87e40c225eb1dc1a1489acd891210761;hb=HEAD.

For information on glock internal locking rules, see http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=blob;f=Documentation/filesystems/gfs2-glocks.txt;h=0494f78d87e40c225eb1dc1a1489acd891210761;hb=HEAD.

For information on event tracing, see http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=blob;f=Documentation/trace/events.txt;h=09bd8e9029892e4e1d48078de4d076e24eff3dd2;hb=HEAD.

For information on the trace-cmd utility, see http://lwn.net/Articles/341902/.