Hi, On 2/29/20 6:16 PM, kbuild test robot wrote: > Hi Hans, > > I love your patch! Yet something to improve: > > [auto build test ERROR on tip/x86/core] > [also build test ERROR on v5.6-rc3 next-20200228] > [cannot apply to tip/auto-latest] > [if your patch is applied to the wrong git tree, please drop us a note to help > improve the system. BTW, we also suggest to use '--base' option to specify the > base tree in git format-patch, please see https://stackoverflow.com/a/37406982] > > url: https://github.com/0day-ci/linux/commits/Hans-de-Goede/x86-purgatory-Make... > base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 248ed51048c40d36728e70914e38bffd7821da57 > config: x86_64-randconfig-s1-20200229 (attached as .config) > compiler: gcc-4.9 (Debian 4.9.2-10+deb8u1) 4.9.2 > reproduce: > # save the attached .config to linux build tree > make ARCH=x86_64 > > If you fix the issue, kindly add following tag > Reported-by: kbuild test robot <lkp(a)intel.com&gt; > > All errors (new ones prefixed by >>): > > ld: arch/x86/purgatory/purgatory.ro: in function `kstrtoull': > > > (.text+0x2b0e): undefined reference to `ftrace_likely_update' AFAICT this is the patch working as intended and pointing out an actual issue with the purgatory code. Which shows that we really should get this patch merged...