[Pkg-zfsonlinux-devel] Bug#920927: Bug#920927: Bug#920927: zfs-dkms: module FTBFS for i386 kernel

[Aron Xu]

Control: retitile -1 dkms module FTBFS for amd64 kernel + i386 user land
Control: severity -1 important

On Thu, Jan 31, 2019 at 5:09 AM Andreas Beckmann <anbe at debian.org> wrote:
>
> On 2019-01-30 20:12, Petter Reinholdtsen wrote:
> >
> > [Andreas Beckmann]
> >> zfs-dkms does not build a kernel module for e.g. the 4.19.0-2-686 i386
> >> kernel. This happened in a i386 chroot on a amd64 host, but this should
> >> not really be a problem, since this setup works fine for other
> >> packages.
> >
> > Are you sure this isn't intentional?  It is strongly recommended not to
> > use ZFS on 32 bit architectures, if I recall correctly.
>
> "intentional" would have been to fail with a clear error message during
> the configure step (optionally recommending an override option), not
> after successfully compiling tons of source files to fail in some crypto
> code with a dubious error message:
>   #error Assembler code is only available for x86 and AMD64 systems
> I didn't even try it on a non-x86 platform :-)
>
> This looks rather like completely "untested".
>

I think it's "untested" for a setup like 64bit kernel + 32bit user
land, so that I'm downgrading the severity.

These setups are tested to be working on x86 systems:
1) amd64 kernel + amd64 userland (recommended)
2) i686-pae kernel + i386 userland (not recommended and howls a scary
debconf warning when being configured, but it works)

Will take a look on the mixed options but it's definitely not the
recommended way to go so far because the lack of testing. Also I think
this could potentially affect x32 as well because they use an amd64
kernel.

Cheers,
Aron