linux-kernel - Re: 'kbuild' merge before 4.9-rc1 breaks build and boot

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Date:   Mon, 24 Oct 2016 07:21:42 +0200
From:   Oliver Hartkopp <socketcan@...tkopp.net>
To:     Michal Marek <mmarek@...e.com>
Cc:     linux-kernel@...r.kernel.org,
        Arthur Marsh <arthur.marsh@...ernode.on.net>
Subject: Re: 'kbuild' merge before 4.9-rc1 breaks build and boot

Hello Michal,

your latest patch doesn't help on my system:

http://git.kernel.org/cgit/linux/kernel/git/mmarek/kbuild.git/commit/?h=rc-fixes&id=989cea5c14be024e879c0055dc6d033680a52610

Regards,
Oliver



On 10/21/2016 06:23 PM, Oliver Hartkopp wrote:
> Hello Michal,
>
> I waited some days for a fix - but obviously no one else has this
> problem so far ...
>
> This merge
>
> "Merge branch 'kbuild' of
> git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild"
>
> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=84d69848c97faab0c25aa2667b273404d2e2a64a
>
>
> creates a bunch of warnings on my system and the built kernel does not
> boot (it complains about a missing root fs).
>
> In the build process some .ko files are built fine and some don't:
>
> (..)
>   MODPOST 176 modules
>   AS      arch/x86/boot/compressed/efi_thunk_64.o
>   GZIP    arch/x86/boot/compressed/vmlinux.bin.gz
>   CC      arch/x86/boot/compressed/misc.o
> WARNING: "memset" [sound/usb/snd-usbmidi-lib.ko] has no CRC!
> WARNING: "__fentry__" [sound/usb/snd-usbmidi-lib.ko] has no CRC!
> WARNING: "memcpy" [sound/usb/snd-usbmidi-lib.ko] has no CRC!
> WARNING: "__sw_hweight32" [sound/usb/snd-usbmidi-lib.ko] has no CRC!
> WARNING: "_copy_to_user" [sound/usb/snd-usb-audio.ko] has no CRC!
> WARNING: "memset" [sound/usb/snd-usb-audio.ko] has no CRC!
> WARNING: "__put_user_1" [sound/usb/snd-usb-audio.ko] has no CRC!
> WARNING: "__put_user_4" [sound/usb/snd-usb-audio.ko] has no CRC!
> WARNING: "__fentry__" [sound/usb/snd-usb-audio.ko] has no CRC!
> WARNING: "memcpy" [sound/usb/snd-usb-audio.ko] has no CRC!
> WARNING: "__fentry__" [sound/soundcore.ko] has no CRC!
> (..)
> WARNING: "__fentry__" [arch/x86/crypto/crc32c-intel.ko] has no CRC!
> WARNING: "__fentry__" [arch/x86/crypto/crc32-pclmul.ko] has no CRC!
> WARNING: "__fentry__" [arch/x86/crypto/aesni-intel.ko] has no CRC!
> WARNING: "__fentry__" [arch/x86/crypto/aes-x86_64.ko] has no CRC!
>   CC      arch/x86/crypto/aes-x86_64.mod.o
>   CC      arch/x86/crypto/aesni-intel.mod.o
>   CC      arch/x86/crypto/crc32-pclmul.mod.o
>   CC      arch/x86/crypto/crc32c-intel.mod.o
> (..)
>
> When reverting the entire pull with
>
> git diff 84d69848c97faab0c25aa2667b273404d2e2a64a
> d4d24d2d0a7ea3b62efd7336bfc2344e29b36bc5 | patch -p1
>
> everything is ok again.
>
> My system is a Debian Stretch.
> gcc version 6.2.0 20161010 (Debian 6.2.0-6)
>
> .config is attached - in the case I have an unusual one from your
> perspective.
>
> Regards,
> Oliver