Greeting,

FYI, we noticed perf-sanity-tests.perf.make.fail due to commit (built with gcc-11):

commit: a980755beb5aca9002e1c95ba519b83a44242b5b ("perf build: Make BUILD_BPF_SKEL default, rename to NO_BPF_SKEL")
https://git.kernel.org/cgit/linux/kernel/git/acme/linux.git tmp.perf-tools-next

in testcase: perf-sanity-tests
version: perf-x86_64-e8d018dd0257-1_20230320
with following parameters:

	perf_compiler: clang



on test machine: 4 threads Intel(R) Core(TM) i5-6500 CPU @ 3.20GHz (Skylake) with 32G memory

caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):




If you fix the issue, kindly add following tag
| Reported-by: kernel test robot <oliver.sang@intel.com>
| Link: https://lore.kernel.org/oe-lkp/202303222158.8975b36d-oliver.sang@intel.com


[   89.510180][  T246]   LINK    /usr/src/perf_selftests-x86_64-rhel-8.3-func-a980755beb5aca9002e1c95ba519b83a44242b5b/tools/perf/util/bpf_skel/.tmp/boo
tstrap/bpftool
[   89.510191][  T246]
[   89.801665][  T246]   GEN     /usr/src/perf_selftests-x86_64-rhel-8.3-func-a980755beb5aca9002e1c95ba519b83a44242b5b/tools/perf/util/bpf_skel/vmlinux.
h
[   89.801677][  T246]
[   91.387572][  T248] libbpf: failed to find '.BTF' ELF section in /usr/src/perf_selftests-x86_64-rhel-8.3-func-a980755beb5aca9002e1c95ba519b83a44242b5
b/tools/perf/util/bpf_skel/.tmp/bootstrap/bpftool
[   91.387584][  T248]
[   91.601268][  T248] Error: failed to load BTF from /usr/src/perf_selftests-x86_64-rhel-8.3-func-a980755beb5aca9002e1c95ba519b83a44242b5b/tools/perf/u
til/bpf_skel/.tmp/bootstrap/bpftool: No data available
[   91.601281][  T248]
[   91.626292][  T248] make[2]: *** [Makefile.perf:1075: /usr/src/perf_selftests-x86_64-rhel-8.3-func-a980755beb5aca9002e1c95ba519b83a44242b5b/tools/per
f/util/bpf_skel/vmlinux.h] Error 195
[   91.626303][  T248]
[   91.648913][  T248] make[2]: *** Deleting file '/usr/src/perf_selftests-x86_64-rhel-8.3-func-a980755beb5aca9002e1c95ba519b83a44242b5b/tools/perf/util
/bpf_skel/vmlinux.h'
[   91.648922][  T248]
[   91.667624][  T248] make[2]: *** Waiting for unfinished jobs....
[   91.667631][  T248]
[   98.262749][  T248] make[1]: *** [Makefile.perf:236: sub-make] Error 2
[   98.262761][  T248]
[   98.266203][  T246] make: Leaving directory '/usr/src/perf_selftests-x86_64-rhel-8.3-func-a980755beb5aca9002e1c95ba519b83a44242b5b/tools/perf'
[   98.270224][  T248] make: *** [Makefile:70: all] Error 2
[   98.272060][  T246]
[   98.284492][  T248]
[   98.290078][  T246] make perf failed


To reproduce:

        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        sudo bin/lkp install job.yaml           # job file is attached in this email
        bin/lkp split-job --compatible job.yaml # generate the yaml file for lkp run
        sudo bin/lkp run generated-yaml-file

        # if come across any failure that blocks the test,
        # please remove ~/.lkp and /lkp dir to run from a clean state.



-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests