Per comment #74, I've now also added af8e15cc85a253155fdcea707588bf6ddfc0be2e ("oom, oom_reaper: do not enqueue task if it is on the oom_reaper_list head") to the test kernel and source branch.
Xenial (4.4.0-32.51~lp1573062.1) ppc64el test kernel:
http://people.canonical.com/~kamal/lp1573062/lp1573062.1/
https://git.launchpad.net/~kamalmostafa/ubuntu/+source/linux/+git/xenial/log/?h=lp1573062
Per comment #74, I've now also added af8e15cc85a2531 55fdcea707588bf 6ddfc0be2e ("oom, oom_reaper: do not enqueue task if it is on the oom_reaper_list head") to the test kernel and source branch.
Xenial (4.4.0- 32.51~lp1573062 .1) ppc64el test kernel:
http:// people. canonical. com/~kamal/ lp1573062/ lp1573062. 1/
https:/ /git.launchpad. net/~kamalmosta fa/ubuntu/ +source/ linux/+ git/xenial/ log/?h= lp1573062