[kbuild-all] Re: kernel/sched/fair.c:9551:12: warning: stack frame size of 1376 bytes in function 'load_balance'

On Mon, May 17, 2021 at 3:45 PM Vincent Guittot <vincent.guittot(a)linaro.org&gt; wrote: > On Tue, 11 May 2021 at 18:01, kernel test robot <lkp(a)intel.com&gt; wrote: >> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master >> head: 1140ab592e2ebf8153d2b322604031a8868ce7a5 >> commit: 0826530de3cbdc89e60a89e86def94a5f0fc81ca sched/fair: Remove update of blocked load from newidle_balance >> date: 9 weeks ago >> config: mips-randconfig-r022-20210511 (attached as .config) >> compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project a0fed635fe1701470062495a6ffee1c608f3f1bc) >> reproduce (this is a W=1 build): >> wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross >> chmod +x ~/bin/make.cross >> # install mips cross compiling tool for clang build >> # apt-get install binutils-mips-linux-gnu >> # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit... >> git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git >> git fetch --no-tags linus master >> git checkout 0826530de3cbdc89e60a89e86def94a5f0fc81ca >> # save the attached .config to linux build tree >> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=mips > It was a bit difficult to find the warning among the thousand I opened an issue against clang about it: See https://github.com/ClangBuiltLinux/linux/issues/1379

but then found that this is already known. I think it would be best to make the kernel test robot set CONFIG_COMPILE_TEST to avoid issues like this. I have annotated a number of symbols that are known to cause unnecessary false positives in a similar way to get a clean build. Arnd _______________________________________________ kbuild-all mailing list -- kbuild-all(a)lists.01.org To unsubscribe send an email to kbuild-all-leave(a)lists.01.org