seccomp in ubuntu_stress_smoke_test failed on ARM64/Power8 Trusty

SRU Request [Cosmic]

== Justification ==

When running stress-ng with the seccomp stressor on kernels that do not support seccomp will fail with prctl PR_SET_SECCOMP failed, errno=22 (Invalid argument) error.

== Fix ==

Upstream commit http://kernel.ubuntu.com/git/cking/stress-ng.git/commit/?id=5a26fac6bfa000960aca295fc2772abb38d7f9fa

== Testing ==

Run:

sudo stress-ng --seccomp 1

With out the fix, the test will error out with errno=22 EINVAL. With the fix the stress test will be gracefully skipped.

== Regression Potential ==

Minimal, this fix affects just the seccomp stress-ng stressor on systems that do not support seccomp prctl PR_SET_SECCOMP.

----------

Didn't see this on amd64 / i386, but it can be reproduced on power8 and ARM64

  seccomp STARTING
  seccomp RETURNED 2
  seccomp FAILED
  stress-ng: debug: [7528] 8 processors online, 8 processors configured
  stress-ng: info: [7528] dispatching hogs: 4 seccomp
  stress-ng: debug: [7528] /sys/devices/system/cpu/cpu0/cache does not exist
  stress-ng: info: [7528] cache allocate: using built-in defaults as unable to determine cache details
  stress-ng: debug: [7528] cache allocate: default cache size: 2048K
  stress-ng: debug: [7528] starting stressors
  stress-ng: debug: [7529] stress-ng-seccomp: started [7529] (instance 0)
  stress-ng: debug: [7528] 4 stressors spawned
  stress-ng: debug: [7530] stress-ng-seccomp: started [7530] (instance 1)
  stress-ng: fail: [7533] stress-ng-seccomp: prctl PR_SET_SECCOMP failed, errno=22 (Invalid argument)
  stress-ng: fail: [7534] stress-ng-seccomp: prctl PR_SET_SECCOMP failed, errno=22 (Invalid argument)
  stress-ng: debug: [7531] stress-ng-seccomp: started [7531] (instance 2)
  stress-ng: fail: [7530] stress-ng-seccomp: aborting because of unexpected failure in child process
  stress-ng: debug: [7530] stress-ng-seccomp: exited [7530] (instance 1)
  stress-ng: fail: [7529] stress-ng-seccomp: aborting because of unexpected failure in child process
  stress-ng: debug: [7529] stress-ng-seccomp: exited [7529] (instance 0)
  stress-ng: debug: [7532] stress-ng-seccomp: started [7532] (instance 3)
  stress-ng: error: [7528] process 7529 (stress-ng-seccomp) terminated with an error, exit status=1 (stress-ng core failure)
  stress-ng: debug: [7528] process [7529] terminated
  stress-ng: error: [7528] process 7530 (stress-ng-seccomp) terminated with an error, exit status=1 (stress-ng core failure)
  stress-ng: debug: [7528] process [7530] terminated
  stress-ng: fail: [7535] stress-ng-seccomp: prctl PR_SET_SECCOMP failed, errno=22 (Invalid argument)
  stress-ng: fail: [7536] stress-ng-seccomp: prctl PR_SET_SECCOMP failed, errno=22 (Invalid argument)
  stress-ng: fail: [7532] stress-ng-seccomp: aborting because of unexpected failure in child process
  stress-ng: debug: [7531] stress-ng-seccomp: exited [7531] (instance 2)
  stress-ng: error: [7528] process 7531 (stress-ng-seccomp) terminated with an error, exit status=1 (stress-ng core failure)
  stress-ng: debug: [7528] process [7531] terminated
  stress-ng: error: [7528] process 7532 (stress-ng-seccomp) terminated with an error, exit status=1 (stress-ng core failure)
  stress-ng: debug: [7528] process [7532] terminated
  stress-ng: info: [7528] unsuccessful run completed in 0.00s

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-161-generic 3.13.0-161.211
ProcVersionSignature: User Name 3.13.0-161.211-generic 3.13.11-ckt39
Uname: Linux 3.13.0-161-generic aarch64
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: 2.14.1-0ubuntu3.29
Architecture: arm64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
CRDA: Error: [Errno 2] No such file or directory: 'iw'
CurrentDmesg:

Date: Tue Nov 6 06:23:27 2018
IwConfig:
 lo no wireless extensions.

 enp1s0 no wireless extensions.

 enp1s0d1 no wireless extensions.
Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize libusb: -99
PciMultimedia:

ProcFB:

ProcKernelCmdLine: console=ttyS0,9600n8r ro
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-161-generic N/A
 linux-backports-modules-3.13.0-161-generic N/A
 linux-firmware 1.127.24
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)