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

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Date:   Sat, 17 Dec 2016 09:57:47 +0100
From:   Jiri Slaby <jslaby@...e.cz>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     Adam Borowski <kilobyte@...band.pl>,
        Nicholas Piggin <npiggin@...il.com>,
        Omar Sandoval <osandov@...ndov.com>,
        Michal Marek <mmarek@...e.com>,
        Alexey Dobriyan <adobriyan@...il.com>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        Al Viro <viro@...iv.linux.org.uk>,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "linux-arch@...r.kernel.org" <linux-arch@...r.kernel.org>
Subject: Re: [GIT PULL] kbuild changes for v4.9-rc1

On 12/16/2016, 08:57 PM, Linus Torvalds wrote:
> On Fri, Dec 16, 2016 at 11:55 AM, Jiri Slaby <jslaby@...e.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)
[    2.164547] virtio_pci: disagrees about version of symbol mcount
[    2.166309] virtio_pci: Unknown symbol mcount (err -22)
[    2.180651] virtio_pci: disagrees about version of symbol mcount
[    2.182823] virtio_pci: Unknown symbol mcount (err -22)
[    2.210943] virtio_pci: disagrees about version of symbol mcount
[    2.220097] virtio_pci: Unknown symbol mcount (err -22)
[    2.220173] ata_piix: disagrees about version of symbol mcount
[    2.220174] ata_piix: 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.
> 
> What was the failure mode?

I am not sure what you mean? The kernel is rpm-ized 4.9 vanilla and this
is the config:
http://kernel.suse.com/cgit/kernel-source/tree/config/i386/default?h=stable

thanks,
-- 
js
suse labs