From: Masahiro Yamada <masahiroy@kernel.org>
To: Sedat Dilek <sedat.dilek@gmail.com>
Cc: Linux Kbuild mailing list <linux-kbuild@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Nathan Chancellor <nathan@kernel.org>,
Nick Desaulniers <ndesaulniers@google.com>,
Nicolas Schier <nicolas@fjasle.eu>,
Peter Zijlstra <peterz@infradead.org>,
linux-modules <linux-modules@vger.kernel.org>,
clang-built-linux <llvm@lists.linux.dev>,
Ard Biesheuvel <ardb@kernel.org>,
Sami Tolvanen <samitolvanen@google.com>
Subject: Re: [PATCH v6 00/10] kbuild: yet another series of cleanups (modpost, LTO, MODULE_REL_CRCS, export.h)
Date: Sun, 22 May 2022 15:49:33 +0900 [thread overview]
Message-ID: <CAK7LNATx1QcM6BdqBSascV8J8rD6etRgRZj9PjBno5Qrb=p3Yg@mail.gmail.com> (raw)
In-Reply-To: <CA+icZUUWww3fXvjQcefgFuq=tPO6+FYDbHE2E5PmL-BSJg4+cw@mail.gmail.com>
On Sun, May 22, 2022 at 10:45 AM Sedat Dilek <sedat.dilek@gmail.com> wrote:
>
> On Fri, May 13, 2022 at 4:31 PM Masahiro Yamada <masahiroy@kernel.org> wrote:
> >
> > On Fri, May 13, 2022 at 8:42 PM Masahiro Yamada <masahiroy@kernel.org> wrote:
> > >
> > >
> > > This is the third batch of cleanups in this development cycle.
> > >
> >
> >
> > This series is available at
> > git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild.git
> > lto-cleanup-v6
> >
>
> Hi Masahiro,
>
> I cloned the repository on top of latest Linus Git.
>
> Not able to boot in Quemu - Not able to boot on bare metal.
>
> $ grep module_layout log_quemu-5.18.0-rc7-2-amd64-clang14-lto.txt
> 366:[ 2.173265] floppy: disagrees about version of symbol module_layout
> 367:[ 2.198746] scsi_common: disagrees about version of symbol module_layout
> 368:[ 2.205573] i2c_piix4: disagrees about version of symbol module_layout
> 369:[ 2.210610] psmouse: disagrees about version of symbol module_layout
> 370:[ 2.225138] scsi_common: disagrees about version of symbol module_layout
> 371:[ 2.235536] scsi_common: disagrees about version of symbol module_layout
> 375:Begin: Running /scripts/local-premount ... [ 2.298555]
> crc32c_intel: disagrees about version of symbol module_layout
> 376:[ 2.303335] crc32c_generic: disagrees about version of symbol
> module_layout
> 377:[ 2.306667] libcrc32c: disagrees about version of symbol module_layout
>
> Infos: LLVM-14 + CONFIG_LTO_CLANG_THIN=y
>
> My linux-config and qemu-log are attached.
>
Thanks for your testing.
I was also able to reproduce this issue.
The problematic parts are:
[ 2.298555] crc32c_intel: disagrees about version of symbol module_layout
[ 2.303335] crc32c_generic: disagrees about version of symbol module_layout
[ 2.306667] libcrc32c: disagrees about version of symbol module_layout
When CONFIG_LTO_CLANG_THIN=y,
I cannot see any __crc_* symbols in "nm vmlinux".
Perhaps, LTO might have discarded all the __crc_* symbols
from vmlinux, but I am still checking the details...
--
Best Regards
Masahiro Yamada
next prev parent reply other threads:[~2022-05-22 6:50 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-13 11:39 [PATCH v6 00/10] kbuild: yet another series of cleanups (modpost, LTO, MODULE_REL_CRCS, export.h) Masahiro Yamada
2022-05-13 11:39 ` [PATCH v6 01/10] modpost: extract symbol versions from *.cmd files Masahiro Yamada
2022-05-28 22:47 ` Guenter Roeck
2022-05-29 4:27 ` Masahiro Yamada
2022-05-13 11:39 ` [PATCH v6 02/10] kbuild: link symbol CRCs at final link, removing CONFIG_MODULE_REL_CRCS Masahiro Yamada
2022-08-20 10:02 ` Build/boot problem with 7b4537199a4a (Re: [PATCH v6 02/10] kbuild: link symbol CRCs at final link, removing CONFIG_MODULE_REL_CRCS) Christophe Leroy
2022-08-20 12:05 ` Sedat Dilek
2022-08-20 14:10 ` Christophe Leroy
2022-08-20 12:51 ` Masahiro Yamada
2022-08-20 14:15 ` Christophe Leroy
2022-08-20 17:01 ` Masahiro Yamada
2022-08-20 17:51 ` Christophe Leroy
2022-05-13 11:39 ` [PATCH v6 03/10] kbuild: stop merging *.symversions Masahiro Yamada
2022-05-13 11:39 ` [PATCH v6 04/10] genksyms: adjust the output format to modpost Masahiro Yamada
2022-05-13 11:39 ` [PATCH v6 05/10] kbuild: do not create *.prelink.o for Clang LTO or IBT Masahiro Yamada
2022-05-13 11:39 ` [PATCH v6 06/10] kbuild: check static EXPORT_SYMBOL* by script instead of modpost Masahiro Yamada
2022-05-25 8:31 ` Guenter Roeck
2022-05-25 10:51 ` Masahiro Yamada
2022-06-07 14:22 ` Jon Hunter
2022-06-07 14:25 ` Nathan Chancellor
2022-06-07 14:34 ` Jon Hunter
2022-05-13 11:39 ` [PATCH v6 07/10] kbuild: make built-in.a rule robust against too long argument error Masahiro Yamada
2022-05-13 11:39 ` [PATCH v6 08/10] kbuild: make *.mod " Masahiro Yamada
2022-05-13 11:39 ` [PATCH v6 09/10] kbuild: add cmd_and_savecmd macro Masahiro Yamada
2022-05-13 11:39 ` [PATCH v6 10/10] kbuild: rebuild multi-object modules when objtool is updated Masahiro Yamada
2022-05-13 12:20 ` [PATCH v6 00/10] kbuild: yet another series of cleanups (modpost, LTO, MODULE_REL_CRCS, export.h) Masahiro Yamada
[not found] ` <CA+icZUUWww3fXvjQcefgFuq=tPO6+FYDbHE2E5PmL-BSJg4+cw@mail.gmail.com>
2022-05-22 6:49 ` Masahiro Yamada [this message]
2022-05-22 9:45 ` Sedat Dilek
2022-05-22 14:15 ` Sedat Dilek
2022-05-22 16:09 ` Masahiro Yamada
2022-05-22 16:18 ` Sedat Dilek
2022-05-22 22:34 ` Sedat Dilek
[not found] ` <2c496d24174e63b27ec047f383df6700@matoro.tk>
2022-08-06 7:23 ` Sedat Dilek
2022-08-06 13:12 ` matoro
2022-08-08 5:54 ` Masahiro Yamada
2022-08-08 13:26 ` matoro
2022-08-08 17:36 ` Masahiro Yamada
2022-08-08 18:42 ` matoro
2022-08-09 15:20 ` Masahiro Yamada
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