From: ebiederm@xmission.com (Eric W. Biederman)
To: kernel test robot <lkp@intel.com>
Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org
Subject: Re: [ebiederm-user-namespace:signal-for-v5.17 4/12] arch/x86/kernel/dumpstack.o: warning: objtool: oops_end() falls through to next function show_opcodes()
Date: Tue, 14 Dec 2021 11:29:05 -0600 [thread overview]
Message-ID: <87k0g7t7ry.fsf@email.froward.int.ebiederm.org> (raw)
In-Reply-To: <202112140949.Uq5sFKR1-lkp@intel.com> (kernel test robot's message of "Tue, 14 Dec 2021 10:03:44 +0800")
kernel test robot <lkp@intel.com> writes:
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace.git signal-for-v5.17
> head: 6b1248798eb6f6d5285db214299996ecc5dc1e6b
> commit: 0e25498f8cd43c1b5aa327f373dd094e9a006da7 [4/12] exit: Add and use make_task_dead.
> config: x86_64-randconfig-a011-20211213 (https://download.01.org/0day-ci/archive/20211214/202112140949.Uq5sFKR1-lkp@intel.com/config)
> compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
> reproduce (this is a W=1 build):
> # https://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace.git/commit/?id=0e25498f8cd43c1b5aa327f373dd094e9a006da7
> git remote add ebiederm-user-namespace https://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace.git
> git fetch --no-tags ebiederm-user-namespace signal-for-v5.17
> git checkout 0e25498f8cd43c1b5aa327f373dd094e9a006da7
> # save the config file to linux build tree
> mkdir build_dir
> make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash arch/x86/kernel/ kernel/ lib/kunit/
>
> 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 >>):
>
>>> lib/kunit/kunit-example-test.o: warning: objtool: .text.unlikely: unexpected end of section
> --
>>> arch/x86/kernel/dumpstack.o: warning: objtool: oops_end() falls through to next function show_opcodes()
I am confused. This change patches objtool to rename
rewind_stack_and_do_exit to rewind_stack_and_make_dead in the list
global_noreturns in tools/objtool/check.c
There is no other change to oops_end other than that renaming.
Did the robot somehow mange to run an old version of objtool while
building and this get this error?
I tried and I am not currently able to reproduce this error. Do you
have any additional pointers on how I might reproduce this?
Eric
next prev parent reply other threads:[~2021-12-14 17:29 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-14 2:03 [ebiederm-user-namespace:signal-for-v5.17 4/12] arch/x86/kernel/dumpstack.o: warning: objtool: oops_end() falls through to next function show_opcodes() kernel test robot
2021-12-14 17:29 ` Eric W. Biederman [this message]
2021-12-15 1:35 ` [kbuild-all] " Rong Chen
2021-12-15 4:48 ` Eric W. Biederman
2021-12-15 5:22 ` Rong Chen
2021-12-15 17:36 ` Eric W. Biederman
2021-12-15 17:38 ` [PATCH] objtool: Add a missing comma to avoid string concatenation Eric W. Biederman
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