tree: https://github.com/zen-kernel/zen-kernel 5.8/muqss head: c2af890bfbd6e035c7e82130533ec424fa3c9a7b commit: a7fe15e65f195714f080517f5a81303badc46dd9 [1/21] MultiQueue Skiplist Scheduler v0.202 config: i386-randconfig-a012-20200810 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce (this is a W=1 build): git checkout a7fe15e65f195714f080517f5a81303badc46dd9 # save the attached .config to linux build tree make W=1 ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; Note: the zen-kernel-zen-kernel/5.8/muqss HEAD c2af890bfbd6e035c7e82130533ec424fa3c9a7b builds fine. It only hurts bisectibility. All errors (new ones prefixed by >>): make[2]: *** [scripts/Makefile.headersinst:63: usr/include/linux/sched.h] Error 1 make[2]: Target '__headers' not remade because of errors. make[1]: *** [Makefile:1258: headers] Error 2 make[1]: Target 'prepare' not remade because of errors. make: *** [Makefile:185: __sub-make] Error 2 make: Target 'prepare' not remade because of errors. --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org