http://lwn.net/Articles/536363/ Sasha Levin put together a userland LD_PRELOAD wrapper around the Linux kernel lockdep. Colin's Locksmith is also linked from the comments. It's been a while since I looked at locksmith, but I seem to remember thinking that there was something that ceph's lockdep does that wasn't captured (class-based instead of instance-based graph?). In any case, if anyone is interested in this stuff, it may be possible to use one of these libraries and rip out our kludgey lockdep implementation. That would be nice! sage -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html