Hi David,

On Fri, Oct 7, 2016 at 5:26 AM, David Sterba <dste...@suse.com> wrote:
> Hi,
>
> another pre-release, just in case.  I did a lot of build tests [1] and
> automated a few things so the build failures should not happen again.
>
> ETA for the release is on Sunday (2016-10-09).  Please test and report any new
> problems.
>
> Changes since 4.8:
> - 32bit build works

This is falling over on my 32-bit ARM platform.  Using stock Debian
Jessie armel or armhf, it builds now, but the send ioctl is unhappy:

# btrfs send -p /data/test/.snapshots/1/snapshot/
/data/test/.snapshots/2/snapshot/ > /dev/null
At subvol /data/test/.snapshots/2/snapshot/
ERROR: send ioctl failed with -25: Inappropriate ioctl for device

If I remove the packed attribute from the btrfs_ioctl_send_args struct
and change the BUILD_ASSERT to expect a 72-byte structure, it all
starts working again.  I'm using a 4.1 kernel built with the standard
armhf toolchain from Wheezy (gcc 4.7.2).

-Justin
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