reproduce (this is a W=1 build): # https://github.com/intel-lab-lkp/linux/commit/559daa35a1b4293cef83dcdc547cd724bf4fee5c git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review tao/mm-rmap-introduce-anon_rmap-APIs-for-anonymous-folios/20260527-191029 git checkout 559daa35a1b4293cef83dcdc547cd724bf4fee5c # apt-get install llvm-dev # save the config file make W=1 ARCH=i386 olddefconfig make W=1 ARCH=i386 make W=1 headers_install make W=1 -C tools/testing/selftests