Hi. I have a question about 'vdso_install'. In my understanding, vdso is embedded in the kernel. In addition, you can run 'make vdso_install' to install an unstripped version of vdso. (Mainly, debugging purpose?) By default, 'make vdso_install' will install it to /lib/modules/$(uname -r)/vdso/. Since that directly is owned by root, 'make vdso_install' could potentially be executed by root, isn't it? Currently, 'vdso_install' depends on vdso, so it may cause recompilation of objects in the source tree. This violates the basic rule: "Installation targets must not modify the source tree". We often miss this point. For example, see commit 19514fc665ffbce624785f76ee7ad0ea6378a527 If this is a problem, I will fix Makefiles to make 'vdso_install' not depend on vdso Thanks. -- Best Regards Masahiro Yamada