sysdig-kmod-0.27.1 currently does not build when the kernel tree is configured to be built with clang, see $URL for related issues and a solution. Reproducible: Always Steps to Reproduce: 1. configure/build kernel with clang 2. try to build sysdig-kmod 3. error! Actual Results: x86_64-pc-linux-gnu-gcc: error: unrecognized command-line option '-Qunused-arguments' ..since linux-mod.eclass defaults to gcc. I applied the solution from #816024 and it works fine; will file a GH PR to fix. The resulting sysdig-kmod works fine on the clang-built kernel.
Not worth the trouble as most people don't build their kernel with clang and 0.27.x is going aways soon anyway. 0.29.x has this fix already.