Messages in this thread | | | Subject | Re: [kbuild-all] Re: ld.lld: error: inline assembly requires more registers than available at line 523 | From | "Chen, Rong A" <> | Date | Fri, 6 May 2022 16:18:19 +0800 |
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On 5/5/2022 1:48 AM, Nathan Chancellor wrote: > On Mon, May 02, 2022 at 06:29:38AM +0800, kernel test robot wrote: >> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master >> head: 672c0c5173427e6b3e2a9bbb7be51ceeec78093a >> commit: ba1f77c546966c12d86220d078e5838dcaeab348 x86/kvm: Fix compilation warning in non-x86_64 builds >> date: 2 months ago >> config: i386-randconfig-a012-20220502 (https://download.01.org/0day-ci/archive/20220502/202205020637.JVJo3blw-lkp@intel.com/config) >> compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 09325d36061e42b495d1f4c7e933e260eac260ed) >> 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 >> # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ba1f77c546966c12d86220d078e5838dcaeab348 >> git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git >> git fetch --no-tags linus master >> git checkout ba1f77c546966c12d86220d078e5838dcaeab348 >> # save the config file >> mkdir build_dir && cp config build_dir/.config >> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash >> >> If you fix the issue, kindly add following tag as appropriate >> Reported-by: kernel test robot <lkp@intel.com> >> >> All errors (new ones prefixed by >>): >> >>>> ld.lld: error: inline assembly requires more registers than available at line 523 >>>> ld.lld: error: inline assembly requires more registers than available at line 523 >> > > I don't think this bisection result is correct; this error is visible at > v5.17-rc3, which this commit is based on. This is likely the same root > cause as https://github.com/ClangBuiltLinux/linux/issues/1589, just with > LTO. I'll reduce something down and comment there if it turns out to be > different. > > Cheers, > Nathan
Hi Nathan,
Thanks for your detailed explanation, we have added the error to the ignore list.
Best Regards, Rong Chen
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