On Mon, 2023-09-25 at 10:04 +0800, kernel test robot wrote: > Hi, > > kernel test robot noticed the following build errors: > > [auto build test ERROR on akpm-mm/mm-everything] > [also build test ERROR on linus/master v6.6-rc3 next-20230921] > [If your patch is applied to the wrong git tree, kindly drop us a > note. > And when submitting patch, we suggest to use '--base' as documented > in > https://git-scm.com/docs/git-format-patch#_base_tree_information] OK, so I have a fix for patch 3/3 that gets rid of the compile error, but the libhugetlbfs test cases show that patch 3/3 opens up a condition where resv_hugepages underflows. I have not figured out the cause of that yet, but patches 1 & 2 seem to survive all tests fine. -- All Rights Reversed.