Florian Klink: > The error message also appears when both "aufs" and "loop" are compiled > as a module.
Hmm... I am afraid we should consider all combinations of these. - aufs (is/is not) a module - the source files are from (aufs3-linux/aufs3-standalone).git + the system when you build aufs3-standalone.git is running the (host/target) kernel - loop (is/is not) a module The current implementation (indirect "loop_backing_file" call via symbol_get()) is a solutin for the case, - aufs is a module - the source files are from aufs3-standalone.git + the system when you build aufs3-standalone.git is running the host kernel - loop is a module In this case, the direct "loop_backing_file" call caused an error, and I switched to the indirect call. And, yes you are right, "loop" module has to be loaded. I thought symbol_get() would load the necessary module on demand, but I may be wrong. I will check the module dependency as soon as possible. Thanks for reporting J. R. Okajima ------------------------------------------------------------------------------ October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register > http://pubads.g.doubleclick.net/gampad/clk?id=60133471&iu=/4140/ostg.clktrk