Messages in this thread | | | Date | Mon, 27 Mar 2023 14:17:25 +0800 | From | kernel test robot <> | Subject | vmlinux.o: warning: objtool: xenpv_exc_double_fault+0xd: unreachable instruction |
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Hi Peter,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 197b6b60ae7bc51dd0814953c562833143b292aa commit: 443ed4c302fff6a26af980300463343a7adc9ee8 objtool: mem*() are not uaccess safe date: 6 weeks ago config: x86_64-randconfig-r035-20230327 (https://download.01.org/0day-ci/archive/20230327/202303271446.1FSJkyat-lkp@intel.com/config) compiler: gcc-11 (Debian 11.3.0-8) 11.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=443ed4c302fff6a26af980300463343a7adc9ee8 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 443ed4c302fff6a26af980300463343a7adc9ee8 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=x86_64 olddefconfig make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash
If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@intel.com> | Link: https://lore.kernel.org/oe-kbuild-all/202303271446.1FSJkyat-lkp@intel.com/
All warnings (new ones prefixed by >>):
>> vmlinux.o: warning: objtool: xenpv_exc_double_fault+0xd: unreachable instruction
objdump-func vmlinux.o xenpv_exc_double_fault: 0000 0000000000001680 <xenpv_exc_double_fault>: 0000 1680: f3 0f 1e fa endbr64 0004 1684: 55 push %rbp 0005 1685: 48 89 e5 mov %rsp,%rbp 0008 1688: e8 00 00 00 00 call 168d <xenpv_exc_double_fault+0xd> 1689: R_X86_64_PLT32 exc_double_fault-0x4 000d 168d: 5d pop %rbp 000e 168e: c3 ret 000f 168f: 66 66 2e 0f 1f 84 00 00 00 00 00 data16 cs nopw 0x0(%rax,%rax,1) 001a 169a: 66 66 2e 0f 1f 84 00 00 00 00 00 data16 cs nopw 0x0(%rax,%rax,1) 0025 16a5: 66 66 2e 0f 1f 84 00 00 00 00 00 data16 cs nopw 0x0(%rax,%rax,1) 0030 16b0: 66 66 2e 0f 1f 84 00 00 00 00 00 data16 cs nopw 0x0(%rax,%rax,1) 003b 16bb: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
-- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
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