Hi Sergei,
First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: a27648c742104a833a01c54becc24429898d85bf
commit: 82880283d7fcd0a1d20964a56d6d1a5cc0df0713 objtool: Fix truncated string warning
date: 1 year, 4 months ago
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce:
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=82880283d7fcd0a1d20964a56d6d1a5cc0df0713
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 82880283d7fcd0a1d20964a56d6d1a5cc0df0713
make W=1 O=/tmp/kselftest headers
make W=1 O=/tmp/kselftest -C tools/testing/selftests
make W=1 O=/tmp/kselftest -C tools/testing/selftests/bpf
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <[email protected]>
| Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
All error/warnings (new ones prefixed by >>):
>> tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:19:1: warning: no previous prototype for 'bpf_testmod_test_mod_kfunc' [-Wmissing-prototypes]
19 | bpf_testmod_test_mod_kfunc(int i)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
>> tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:24:14: warning: no previous prototype for 'bpf_testmod_loop_test' [-Wmissing-prototypes]
24 | noinline int bpf_testmod_loop_test(int n)
| ^~~~~~~~~~~~~~~~~~~~~
>> tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:36:30: warning: no previous prototype for 'bpf_testmod_return_ptr' [-Wmissing-prototypes]
36 | __weak noinline struct file *bpf_testmod_return_ptr(int arg)
| ^~~~~~~~~~~~~~~~~~~~~~
tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:53:1: warning: no previous prototype for 'bpf_testmod_test_read' [-Wmissing-prototypes]
53 | bpf_testmod_test_read(struct file *file, struct kobject *kobj,
| ^~~~~~~~~~~~~~~~~~~~~
tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:89:1: warning: no previous prototype for 'bpf_testmod_test_write' [-Wmissing-prototypes]
89 | bpf_testmod_test_write(struct file *file, struct kobject *kobj,
| ^~~~~~~~~~~~~~~~~~~~~~
--
>> make[5]: *** No rule to make target 'scripts/module.lds', needed by 'tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.ko'.
make[5]: Target '__modfinal' not remade because of errors.
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
On Thu, 8 Jun 2023 05:24:07 +0800
kernel test robot <[email protected]> wrote:
> Hi Sergei,
>
> First bad commit (maybe != root cause):
>
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head: a27648c742104a833a01c54becc24429898d85bf
> commit: 82880283d7fcd0a1d20964a56d6d1a5cc0df0713 objtool: Fix truncated string warning
> date: 1 year, 4 months ago
> compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
> reproduce:
> # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=82880283d7fcd0a1d20964a56d6d1a5cc0df0713
> git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> git fetch --no-tags linus master
> git checkout 82880283d7fcd0a1d20964a56d6d1a5cc0df0713
> make W=1 O=/tmp/kselftest headers
> make W=1 O=/tmp/kselftest -C tools/testing/selftests
> make W=1 O=/tmp/kselftest -C tools/testing/selftests/bpf
>
> If you fix the issue in a separate patch/commit (i.e. not just a new version of
> the same patch/commit), kindly add following tags
> | Reported-by: kernel test robot <[email protected]>
> | Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
>
> All error/warnings (new ones prefixed by >>):
>
> >> tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:19:1: warning: no previous prototype for 'bpf_testmod_test_mod_kfunc' [-Wmissing-prototypes]
> 19 | bpf_testmod_test_mod_kfunc(int i)
> | ^~~~~~~~~~~~~~~~~~~~~~~~~~
> >> tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:24:14: warning: no previous prototype for 'bpf_testmod_loop_test' [-Wmissing-prototypes]
> 24 | noinline int bpf_testmod_loop_test(int n)
> | ^~~~~~~~~~~~~~~~~~~~~
> >> tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:36:30: warning: no previous prototype for 'bpf_testmod_return_ptr' [-Wmissing-prototypes]
> 36 | __weak noinline struct file *bpf_testmod_return_ptr(int arg)
> | ^~~~~~~~~~~~~~~~~~~~~~
> tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:53:1: warning: no previous prototype for 'bpf_testmod_test_read' [-Wmissing-prototypes]
> 53 | bpf_testmod_test_read(struct file *file, struct kobject *kobj,
> | ^~~~~~~~~~~~~~~~~~~~~
> tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:89:1: warning: no previous prototype for 'bpf_testmod_test_write' [-Wmissing-prototypes]
> 89 | bpf_testmod_test_write(struct file *file, struct kobject *kobj,
> | ^~~~~~~~~~~~~~~~~~~~~~
> --
> >> make[5]: *** No rule to make target 'scripts/module.lds', needed by 'tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.ko'.
> make[5]: Target '__modfinal' not remade because of errors.
This failure looks unrelated to the commit it points to.
lkp@, can you have a look at your bisection rules in a bit
more of detail? There are at least 2 problems with this report:
1. the commit is 1.5 years old, it's unlikely you care about that old material
2. build failure might be an indication of a flaky build failure (or outright
stale build tree)
Both points have a chance of decreasing signal value from 0-DAY CI.
Thanks!
--
Sergei
Hi Sergei,
On Wed, 2023-06-07 at 22:47 +0100, Sergei Trofimovich wrote:
> On Thu, 8 Jun 2023 05:24:07 +0800
> kernel test robot <[email protected]> wrote:
>
> > Hi Sergei,
> >
> > First bad commit (maybe != root cause):
> >
> > tree:
> > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> > master
> > head: a27648c742104a833a01c54becc24429898d85bf
> > commit: 82880283d7fcd0a1d20964a56d6d1a5cc0df0713 objtool: Fix
> > truncated string warning
> > date: 1 year, 4 months ago
> > compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
> > reproduce:
> > #
> > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=82880283d7fcd0a1d20964a56d6d1a5cc0df0713
> > git remote add linus
> > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> > git fetch --no-tags linus master
> > git checkout 82880283d7fcd0a1d20964a56d6d1a5cc0df0713
> > make W=1 O=/tmp/kselftest headers
> > make W=1 O=/tmp/kselftest -C tools/testing/selftests
> > make W=1 O=/tmp/kselftest -C tools/testing/selftests/bpf
> >
> > If you fix the issue in a separate patch/commit (i.e. not just a
> > new version of
> > the same patch/commit), kindly add following tags
> > > Reported-by: kernel test robot <[email protected]>
> > > Closes:
> > > https://lore.kernel.org/oe-kbuild-all/[email protected]/
> >
> > All error/warnings (new ones prefixed by >>):
> >
> > > > tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:19:1:
> > > > warning: no previous prototype for 'bpf_testmod_test_mod_kfunc'
> > > > [-Wmissing-prototypes]
> > 19 | bpf_testmod_test_mod_kfunc(int i)
> > | ^~~~~~~~~~~~~~~~~~~~~~~~~~
> > > > tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:24:14:
> > > > warning: no previous prototype for 'bpf_testmod_loop_test' [-
> > > > Wmissing-prototypes]
> > 24 | noinline int bpf_testmod_loop_test(int n)
> > | ^~~~~~~~~~~~~~~~~~~~~
> > > > tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:36:30:
> > > > warning: no previous prototype for 'bpf_testmod_return_ptr' [-
> > > > Wmissing-prototypes]
> > 36 | __weak noinline struct file *bpf_testmod_return_ptr(int
> > arg)
> > | ^~~~~~~~~~~~~~~~~~~~~~
> > tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:53:1:
> > warning: no previous prototype for 'bpf_testmod_test_read' [-
> > Wmissing-prototypes]
> > 53 | bpf_testmod_test_read(struct file *file, struct kobject
> > *kobj,
> > | ^~~~~~~~~~~~~~~~~~~~~
> > tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c:89:1:
> > warning: no previous prototype for 'bpf_testmod_test_write' [-
> > Wmissing-prototypes]
> > 89 | bpf_testmod_test_write(struct file *file, struct kobject
> > *kobj,
> > | ^~~~~~~~~~~~~~~~~~~~~~
> > --
> > > > make[5]: *** No rule to make target 'scripts/module.lds',
> > > > needed by
> > > > 'tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.ko'.
> > make[5]: Target '__modfinal' not remade because of errors.
>
> This failure looks unrelated to the commit it points to.
>
> lkp@, can you have a look at your bisection rules in a bit
> more of detail? There are at least 2 problems with this report:
>
> 1. the commit is 1.5 years old, it's unlikely you care about that old
> material
> 2. build failure might be an indication of a flaky build failure (or
> outright
> stale build tree)
>
> Both points have a chance of decreasing signal value from 0-DAY CI.
Really sorry for this false report. There was an environment issue in
the bot and caused a wrong bisection. We are working on fixing it.
Sorry again for the noise.
--
Best Regards,
Yujie