Comment 0 for bug 1768452

After the test_bpf insert issue for Xenial was fixed in bug 1765698

But it looks like the s390x needs some extra work.
$ sudo modprobe test_bpf
modprobe: ERROR: could not insert 'test_bpf': Invalid argument

4 tests failed here:
  test_bpf: #243 BPF_MAXINSNS: Ctx heavy transformations FAIL to prog_create err=-524 len=4096
  test_bpf: #244 BPF_MAXINSNS: Call heavy transformations FAIL to prog_create err=-524 len=4096
  test_bpf: #249 BPF_MAXINSNS: ld_abs+get_processor_id FAIL to prog_create err=-524 len=4096
  test_bpf: #250 BPF_MAXINSNS: ld_abs+vlan_push/pop FAIL to select_runtime err=-524

Complete test result:
https://pastebin.ubuntu.com/p/zMDwVjwF7X/

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-123-generic 4.4.0-123.147
ProcVersionSignature: Ubuntu 4.4.0-123.147-generic 4.4.128
Uname: Linux 4.4.0-123-generic s390x
NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
AlsaDevices: Error: command ['ls', '-l', '/dev/snd/'] failed with exit code 2: ls: cannot access '/dev/snd/': No such file or directory
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.20.1-0ubuntu2.16
Architecture: s390x
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
Date: Wed May 2 03:45:22 2018
HibernationDevice: RESUME=UUID=f578fa27-1d57-41c9-bb1d-7ff64c1c9345
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
Lsusb: Error: command ['lsusb'] failed with exit code 1:
PciMultimedia:

ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB: Error: [Errno 2] No such file or directory: '/proc/fb'
ProcKernelCmdLine: root=UUID=f26894a2-496d-4891-aa9a-f66344c77779 crashkernel=196M BOOT_IMAGE=0
RelatedPackageVersions:
 linux-restricted-modules-4.4.0-123-generic N/A
 linux-backports-modules-4.4.0-123-generic N/A
 linux-firmware 1.157.17
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)