Re: [GIT PULL] kbuild changes for v4.9-rc1

From	Adam Borowski <kilobyte@angband.pl>
Newsgroups	linux.kernel
Subject	Re: [GIT PULL] kbuild changes for v4.9-rc1
Date	2016-12-17 10:40 +0100
Message-ID	<sPjDc-7R9-15@gated-at.bofh.it> (permalink)
References	(1 earlier) <stadA-j1-5@gated-at.bofh.it> <std1M-26b-23@gated-at.bofh.it> <sP6PE-7WR-1@gated-at.bofh.it> <sP6PE-7WR-9@gated-at.bofh.it> <sPj0t-7mO-1@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Show all headers | View raw

On Sat, Dec 17, 2016 at 09:57:47AM +0100, Jiri Slaby wrote:
> On 12/16/2016, 08:57 PM, Linus Torvalds wrote:
> > On Fri, Dec 16, 2016 at 11:55 AM, Jiri Slaby <jslaby@suse.cz> wrote:
> >>
> >> what happened to this? I had to apply this to fix 4.9-pae kernel here.
> > 
> > Did you actually have to do that?
> 
> Yes, disk drivers won't load:
> [    2.141973] virtio_pci: disagrees about version of symbol mcount
> [    2.144415] virtio_pci: Unknown symbol mcount (err -22)
> and whole machine gets stuck with systemd waiting for /dev/sd*.
> 
> > Because a missing CRC shouldn't be fatal in 4.9.

Most of us get just a scary-looking warning, but whatever the problem is for
you, it's good to hear this patch works around it.

Whatever the long-term solution will be, for 4.10 an updated[1] version of
this fix is on kbuild/kbuild (and kbuild/for-next).  I guess we'll bother
stable@ once it is merged.

Note that it handles only x86, there's a bunch of other architectures
affected, alpha m68k s390 sparc ia64 might still need fixing.

Meow!

[1]. Turns out there was a missing symbol on 486; people build-test those
but don't try to actually boot, and even when they do, they don't read
warnings.
-- 
Autotools hint: to do a zx-spectrum build on a pdp11 host, type:
  ./configure --host=zx-spectrum --build=pdp11

Thread

Re: [GIT PULL] kbuild changes for v4.9-rc1 Jiri Slaby <jslaby@suse.cz> - 2016-12-16 21:00 +0100
  Re: [GIT PULL] kbuild changes for v4.9-rc1 Linus Torvalds <torvalds@linux-foundation.org> - 2016-12-16 21:00 +0100
    Re: [GIT PULL] kbuild changes for v4.9-rc1 Jiri Slaby <jslaby@suse.cz> - 2016-12-17 10:00 +0100
      Re: [GIT PULL] kbuild changes for v4.9-rc1 Adam Borowski <kilobyte@angband.pl> - 2016-12-17 10:40 +0100
      Re: [GIT PULL] kbuild changes for v4.9-rc1 Linus Torvalds <torvalds@linux-foundation.org> - 2016-12-18 01:00 +0100
        Re: [GIT PULL] kbuild changes for v4.9-rc1 Jiri Slaby <jslaby@suse.cz> - 2016-12-18 11:50 +0100
          Re: [GIT PULL] kbuild changes for v4.9-rc1 Arend Van Spriel <arend.vanspriel@broadcom.com> - 2016-12-18 12:10 +0100
            Re: [GIT PULL] kbuild changes for v4.9-rc1 Nikolay Borisov <n.borisov.lkml@gmail.com> - 2016-12-18 14:30 +0100
              Re: [GIT PULL] kbuild changes for v4.9-rc1 Jiri Slaby <jslaby@suse.cz> - 2016-12-18 15:50 +0100
                Re: [GIT PULL] kbuild changes for v4.9-rc1 Nikolay Borisov <n.borisov.lkml@gmail.com> - 2016-12-18 16:00 +0100
                Re: [GIT PULL] kbuild changes for v4.9-rc1 Jiri Slaby <jslaby@suse.cz> - 2016-12-18 16:10 +0100

csiph-web