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Groups > linux.debian.kernel > #55895

Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm

From Adam Borowski <kilobyte@angband.pl>
Newsgroups linux.debian.kernel, linux.kernel
Subject Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm
Date 2016-11-29 18:10 +0100
Message-ID <sIU4O-2TK-33@gated-at.bofh.it> (permalink)
References <sIQud-v5-3@gated-at.bofh.it> <sIR6V-It-9@gated-at.bofh.it> <sISPo-1Rc-33@gated-at.bofh.it>
Organization linux.* mail to news gateway

Cross-posted to 2 groups.

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On Tue, Nov 29, 2016 at 07:27:12AM -0800, Linus Torvalds wrote:
> On Nov 29, 2016 5:51 AM, "Adam Borowski" <kilobyte@angband.pl> wrote:
> > >
> > >  (a) tested
> >
> > By many people.
> 
> No.
> 
> I've tested the build *without* this, and it works fine.

Michal mentioned "why", let's try "where".

I have no idea what setup is required to trigger the problem, but here's a
simple sufficient one:

Current Debian unstable, amd64.
git reset --hard v4.9-rc7
git revert cd3caefb
make defconfig
CONFIG_MODVERSIONS=y
(in my case) CONFIG_BTRFS_FS=y (so I can boot)
enable a module for testing, I used CONFIG_EXT4_FS=m
make bindeb-pkg
dpkg -i linux-image_XXXXX.deb

modprobe ext4
[   63.779490] jbd2: no symbol version for memcpy
[   63.779492] jbd2: Unknown symbol memcpy (err -22)
[   63.779550] jbd2: no symbol version for phys_base
[   63.779551] jbd2: Unknown symbol phys_base (err -22)
[   63.779561] jbd2: no symbol version for memset
[   63.779562] jbd2: Unknown symbol memset (err -22)

Not sure which piece of toolchain matters here, someone said binutils.
In that case, Fedora ships 2.26.1-1.fc25, they were frozen so couldn't
update.  Debian is at 2.27.51.20161127-1, Gentoo at 2.27, same for Arch,
OpenSUSE; Ubuntu at 2.27.51.20161124-1.

Thus, if it's indeed binutils, you'll see the breakage as soon as Fedora
recovers from the freeze.


Meow!
-- 
The bill declaring Jesus as the King of Poland fails to specify whether
the addition is at the top or end of the list of kings.  What should the
historians do?

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Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Ben Hutchings <ben@decadent.org.uk> - 2016-11-29 02:20 +0100
  Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Nicholas Piggin <npiggin@gmail.com> - 2016-11-29 03:40 +0100
    Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Michal Marek <mmarek@suse.com> - 2016-11-29 10:20 +0100
  Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Linus Torvalds <torvalds@linux-foundation.org> - 2016-11-29 05:10 +0100
    Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Adam Borowski <kilobyte@angband.pl> - 2016-11-29 14:20 +0100
      Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Ingo Molnar <mingo@kernel.org> - 2016-11-29 14:40 +0100
        Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Adam Borowski <kilobyte@angband.pl> - 2016-11-29 15:30 +0100
      [PATCH] x86/kbuild: enable modversions for symbols exported from asm Adam Borowski <kilobyte@angband.pl> - 2016-11-29 15:00 +0100
        Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Linus Torvalds <torvalds@linux-foundation.org> - 2016-11-29 16:50 +0100
          Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Michal Marek <mmarek@suse.com> - 2016-11-29 17:20 +0100
            Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Linus Torvalds <torvalds@linux-foundation.org> - 2016-11-29 17:40 +0100
              Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Ben Hutchings <ben@decadent.org.uk> - 2016-11-29 21:00 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Linus Torvalds <torvalds@linux-foundation.org> - 2016-11-29 22:00 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Linus Torvalds <torvalds@linux-foundation.org> - 2016-11-30 20:00 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Ben Hutchings <ben@decadent.org.uk> - 2016-11-30 22:40 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-01 03:20 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Ben Hutchings <ben@decadent.org.uk> - 2016-12-01 03:40 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-01 05:00 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Michal Marek <mmarek@suse.com> - 2016-12-01 17:40 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Hannes Frederic Sowa <hannes@stressinduktion.org> - 2016-12-02 16:00 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-09 05:00 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Ian Campbell <ijc@hellion.org.uk> - 2016-12-09 16:30 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-09 17:40 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-12-10 14:00 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-12 05:10 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Ian Campbell <ijc@hellion.org.uk> - 2016-12-12 10:10 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Don Zickus <dzickus@redhat.com> - 2016-12-14 19:20 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Stanislav Kozina <skozina@redhat.com> - 2016-12-13 02:30 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Michal Marek <mmarek@suse.com> - 2016-12-14 00:10 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Dodji Seketeli <dodji@seketeli.org> - 2016-12-14 10:20 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Michal Marek <mmarek@suse.com> - 2016-12-14 10:40 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Michal Marek <mmarek@suse.com> - 2016-12-14 11:00 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Dodji Seketeli <dodji@seketeli.org> - 2016-12-14 11:00 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Michal Marek <mmarek@suse.com> - 2016-12-14 11:10 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Dodji Seketeli <dodji@seketeli.org> - 2016-12-14 11:20 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Michal Marek <mmarek@suse.com> - 2016-12-14 11:40 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Dodji Seketeli <dodji@seketeli.org> - 2016-12-14 11:20 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Don Zickus <dzickus@redhat.com> - 2016-12-01 05:50 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-01 05:50 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Don Zickus <dzickus@redhat.com> - 2016-12-01 16:40 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Don Zickus <dzickus@redhat.com> - 2016-12-01 17:00 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-12-01 17:40 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Don Zickus <dzickus@redhat.com> - 2016-12-01 20:10 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Christoph Hellwig <hch@infradead.org> - 2016-12-01 17:10 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-09 05:10 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Stanislav Kozina <skozina@redhat.com> - 2016-12-09 09:20 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-09 09:40 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Stanislav Kozina <skozina@redhat.com> - 2016-12-09 16:00 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-09 17:20 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-12-09 17:30 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Stanislav Kozina <skozina@redhat.com> - 2016-12-12 11:10 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-13 08:50 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Hannes Frederic Sowa <hannes@redhat.com> - 2016-12-14 15:40 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-15 03:30 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Hannes Frederic Sowa <hannes@redhat.com> - 2016-12-15 12:40 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-15 13:30 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Hannes Frederic Sowa <hannes@redhat.com> - 2016-12-15 14:40 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-15 15:40 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Hannes Frederic Sowa <hannes@redhat.com> - 2016-12-15 16:40 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Stanislav Kozina <skozina@redhat.com> - 2016-12-15 15:00 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Don Zickus <dzickus@redhat.com> - 2016-12-09 17:40 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Stanislav Kozina <skozina@redhat.com> - 2016-12-01 12:20 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-01 12:30 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Stanislav Kozina <skozina@redhat.com> - 2016-12-01 13:00 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-01 14:00 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Dodji Seketeli <dodji@seketeli.org> - 2016-12-01 16:50 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Michal Marek <mmarek@suse.com> - 2016-12-01 17:40 +0100
          Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Adam Borowski <kilobyte@angband.pl> - 2016-11-29 18:10 +0100
            Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Linus Torvalds <torvalds@linux-foundation.org> - 2016-11-29 18:30 +0100
              Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Linus Torvalds <torvalds@linux-foundation.org> - 2016-11-29 18:40 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Arnd Bergmann <arnd@arndb.de> - 2016-12-01 15:20 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Michal Marek <mmarek@suse.com> - 2016-12-01 17:40 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Linus Torvalds <torvalds@linux-foundation.org> - 2016-12-01 19:50 +0100
                Re: [RFC, PATCH, v3.9] default exported asm symbols to zero Geert Uytterhoeven <geert@linux-m68k.org> - 2016-12-02 14:00 +0100
                Re: [RFC, PATCH, v3.9] default exported asm symbols to zero Arnd Bergmann <arnd@arndb.de> - 2016-12-02 16:10 +0100
                Re: [RFC, PATCH, v3.9] default exported asm symbols to zero Adam Borowski <kilobyte@angband.pl> - 2016-12-02 16:40 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Linus Torvalds <torvalds@linux-foundation.org> - 2016-12-02 18:30 +0100
                Re: [RFC, PATCH, v3.9] default exported asm symbols to zero Ben Hutchings <ben@decadent.org.uk> - 2016-12-03 05:40 +0100
                Re: [RFC, PATCH, v3.9] default exported asm symbols to zero Arnd Bergmann <arnd@arndb.de> - 2016-12-03 12:10 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Alan Modra <amodra@gmail.com> - 2016-12-04 09:20 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Linus Torvalds <torvalds@linux-foundation.org> - 2016-12-04 22:10 +0100
              Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Michal Marek <mmarek@suse.com> - 2016-11-29 22:50 +0100
        Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Ben Hutchings <ben@decadent.org.uk> - 2016-12-02 03:10 +0100
          Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Adam Borowski <kilobyte@angband.pl> - 2016-12-02 12:30 +0100
            Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Ben Hutchings <ben@decadent.org.uk> - 2016-12-02 16:10 +0100

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