On 06.11.2018 18:50, kbuild test robot wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git > master > head: 163c8d54a997153ee1a1e07fcac087492ad85b37 > commit: 10e9ae9fabaf96c8e5227c1cd4827d58b3aa406d gcc-plugins: Add STACKLEAK > plugin for tracking the kernel stack > date: 9 weeks ago > config: x86_64-randconfig-u0-11062149 (attached as .config) > compiler: gcc-5 (Debian 5.5.0-3) 5.4.1 20171010 > reproduce: > git checkout 10e9ae9fabaf96c8e5227c1cd4827d58b3aa406d > # save the attached .config to linux build tree > make ARCH=x86_64 > >>> drivers/acpi/acpi_processor.o: warning: objtool: >>> acpi_duplicate_processor_id()+0x49: stack state mismatch: cfa1=7+8 cfa2=6+16
Hello! I have reproduced this problem. It looks like stackleak_cleanup_execute() does something wrong with RTL which is generated by gcc-5. I'm working on this. Best regards, Alexander
