Bug#851481: linux-headers-4.9.0-1-amd64:amd64 not installable with 32bit userland

[Sven Hartge <sven@svenhartge.de>]

Source: linux
Version: 4.9.2-2
Severity: normal

Hi!

I am using a mixed system with 64bit Kernel and 32bit userland.

With linux-headers-4.8-0-2-amd64 this worked fine, I was able to install
the kernel headers and use dkms to compile out-of-tree modules such as
xtables-addons.

With linux-headers-4.9.0-1-amd64 switching its dependencies to
gcc-6:amd64 I am no longer able to do so.

And trying to install a 64bit gcc (and related tools) would effectively
uninstall half of my system.

Is running a 64bit system with 32bit userland no longer supported or did
I miss something obvious?

Grüße,
Sven.

-- System Information:
Debian Release: stretch/sid
  APT prefers unstable-debug
  APT policy: (500, 'unstable-debug'), (500, 'testing-debug'), (500, 'unstable'), (500, 'testing'), (200, 'experimental'), (1, 'experimental-debug')
Architecture: i386 (x86_64)
Foreign Architectures: amd64

Kernel: Linux 4.8.0-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=de_DE.utf8, LC_CTYPE=de_DE.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)