Public bug reported:

I have 517 messages and counting like this:
kernel: [ 2899.006553] audit: type=1326 audit(1460584187.442:1256): 
auid=4294967295 uid=1000 gid=1000 ses=4294967295 pid=18839 
comm="chromium-browse" exe="/usr/lib/chromium-browser/chromium-browser" sig=0 
arch=c000003e syscall=273 compat=0 ip=0x7fa52f21a694 code=0x50000

$ scmp_sys_resolver 273
set_robust_list

It seems that chromium's seccomp sandbox needs to enable this call or
chromium adjusted to not use it.

$ cat /proc/version_signature
Ubuntu 4.4.0-18.34-generic 4.4.6

$ apt-cache policy chromium-browser
$ apt-cache policy chromium-browser
chromium-browser:
  Installed: 49.0.2623.108-0ubuntu1.1233
  Candidate: 49.0.2623.108-0ubuntu1.1233
  Version table:
 *** 49.0.2623.108-0ubuntu1.1233 500
        500 http://us.archive.ubuntu.com/ubuntu xenial/universe amd64 Packages
        100 /var/lib/dpkg/status

** Affects: chromium-browser (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1570111

Title:
  many seccomp denials for set_robust_list in xenial

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