linux-kernel - Re: [acme:tmp.perf-tools-next] [perf build] a980755beb: perf-sanity-tests.perf.make.fail

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Date:   Wed, 29 Mar 2023 14:17:09 +0800
From:   Oliver Sang <oliver.sang@...el.com>
To:     Ian Rogers <irogers@...gle.com>
CC:     <oe-lkp@...ts.linux.dev>, <lkp@...el.com>,
        <linux-perf-users@...r.kernel.org>,
        Arnaldo Carvalho de Melo <acme@...hat.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        "Alexander Shishkin" <alexander.shishkin@...ux.intel.com>,
        Andres Freund <andres@...razel.de>,
        Ingo Molnar <mingo@...hat.com>, Jiri Olsa <jolsa@...nel.org>,
        Leo Yan <leo.yan@...aro.org>,
        Mark Rutland <mark.rutland@....com>,
        Martin Liška <mliska@...e.cz>,
        Namhyung Kim <namhyung@...nel.org>,
        Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Pavithra Gurushankar <gpavithrasha@...il.com>,
        Peter Zijlstra <peterz@...radead.org>,
        "Quentin Monnet" <quentin@...valent.com>,
        Roberto Sassu <roberto.sassu@...wei.com>,
        Stephane Eranian <eranian@...gle.com>,
        Tiezhu Yang <yangtiezhu@...ngson.cn>,
        Tom Rix <trix@...hat.com>,
        Yang Jihong <yangjihong1@...wei.com>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [acme:tmp.perf-tools-next] [perf build] a980755beb:
 perf-sanity-tests.perf.make.fail

hi Ian,

On Wed, Mar 22, 2023 at 09:03:28AM -0700, Ian Rogers wrote:
> On Wed, Mar 22, 2023 at 7:20 AM kernel test robot <oliver.sang@...el.com> wrote:
> >
> >
> > 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
> >
> > [   98.290078][  T246] make perf failed
> 
> Hi Oliver,
> 
> Could we add NO_BPF_SKEL=1 to the build flags? The idea with changing
> the default is that is what most users want and so we want the BPF
> skeleton to be opt-out rather than opt-in.

Thanks a lot for guidance!

I added NO_BPF_SKEL=1 then make perf can pass upon this commit.
I also tried to add BUILD_BPF_SKEL=1 while make perf for parent, it will fail.

since you said in commit message
"BPF skeleton support is now key to a number of perf features."
we will start to fix make issue.

Thanks!

> 
> Thanks,
> Ian
> 
> >
> > 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
> >
> >
>