xenomai 2.6.4+dfsg-1 is marked for autoremoval from testing on 2017-06-15 It (build-)depends on packages with these RC bugs: 848066: kernel-package: build fails due to missing Documentation/Changes with kernel 4.9.0+ 849357: kernel-package: make-kpkg kernel_headers fails for linux 4.10-rc1; missing REPORTING-BUGS 856322: kernel-package: 4.10 kernel - kernel_headers package not building. File changed location