CC: linux-kernel(a)vger.kernel.org
TO: Josh Poimboeuf <jpoimboe(a)redhat.com>
CC: Borislav Petkov <bp(a)suse.de>
CC: Kees Cook <keescook(a)chromium.org>
CC: Miroslav Benes <mbenes(a)suse.cz>
tree:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 7fe10096c1508c7f033d34d0741809f8eecc1ed4
commit: bd841d6154f5f41f8a32d3c1b0bc229e326e640a objtool: Fix CONFIG_UBSAN_TRAP
unreachable warnings
date: 5 months ago
config: x86_64-randconfig-r022-20200909 (attached as .config)
compiler: clang version 12.0.0 (
https://github.com/llvm/llvm-project
8893d0816ccdf8998d2e21b5430e9d6abe7ef465)
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 x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
git checkout bd841d6154f5f41f8a32d3c1b0bc229e326e640a
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
All warnings (new ones prefixed by >>):
> net/netlink/genetlink.o: warning: objtool:
genl_pernet_init()+0xa4: unreachable instruction
--
> drivers/virtio/virtio.o: warning: objtool: init_module()+0x2b:
unreachable instruction
--
> arch/x86/mm/kasan_init_64.o: warning: objtool:
early_alloc()+0x71: unreachable instruction
--
> arch/x86/kernel/cpu/mce/core.o: warning: objtool:
wait_for_panic()+0xbd: unreachable instruction
--
> fs/buffer.o: warning: objtool: __se_sys_bdflush()+0x76:
unreachable instruction
--
> fs/cifs/connect.o: warning: objtool:
cifs_demultiplex_thread()+0x1e9d: unreachable instruction
--
> drivers/xen/events/events_base.o: warning: objtool:
xen_irq_init()+0x1fe: unreachable instruction
--
> drivers/tty/pty.o: warning: objtool: legacy_pty_init()+0x58f:
unreachable instruction
--
> drivers/tty/vt/vt.o: warning: objtool: vty_init()+0x2b9:
unreachable instruction
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org