Messages in this thread | | | Date | Thu, 12 May 2022 10:11:55 -0700 | From | Josh Poimboeuf <> | Subject | Re: [ammarfaizi2-block:stable/linux-stable-rc/queue/5.15 146/150] kernel/futex.o: warning: objtool: futex_atomic_op_inuser()+0xb8: unreachable instruction |
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On Thu, May 12, 2022 at 10:17:09AM +0200, Peter Zijlstra wrote: > On Thu, May 12, 2022 at 10:00:33AM +0800, kernel test robot wrote: > > tree: https://github.com/ammarfaizi2/linux-block stable/linux-stable-rc/queue/5.15 > > head: 305e905f70311e1b49cc730931a19c3e364f4d8c > > commit: 45dc9d706619a6814e4063d5431483f94badb5a1 [146/150] x86: Add straight-line-speculation mitigation > > config: x86_64-randconfig-m001-20220509 (https://download.01.org/0day-ci/archive/20220512/202205120956.qLpGQurX-lkp@intel.com/config) > > compiler: gcc-11 (Debian 11.2.0-20) 11.2.0 > > reproduce (this is a W=1 build): > > # https://github.com/ammarfaizi2/linux-block/commit/45dc9d706619a6814e4063d5431483f94badb5a1 > > git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block > > git fetch --no-tags ammarfaizi2-block stable/linux-stable-rc/queue/5.15 > > git checkout 45dc9d706619a6814e4063d5431483f94badb5a1 > > # save the config file > > mkdir build_dir && cp config build_dir/.config > > make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash > > > > If you fix the issue, kindly add following tag as appropriate > > Reported-by: kernel test robot <lkp@intel.com> > > > > All warnings (new ones prefixed by >>): > > > > >> kernel/futex.o: warning: objtool: futex_atomic_op_inuser()+0xb8: unreachable instruction > > -- > > >> mm/madvise.o: warning: objtool: madvise_behavior()+0x69: unreachable instruction > > -- > > >> kernel/bpf/btf.o: warning: objtool: __btf_resolve_size()+0x72: unreachable instruction > > Would it be possible for the robot to include the output of this script: > > https://lkml.kernel.org/r/3eb3f091fd6bd9caba50392ceab98ce756804f3b.1650578171.git.jpoimboe@redhat.com
Ha, I already forgot about that script. I'll drop it into my objtool/core branch (eventually for tip) unless anybody objects.
-- Josh
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