Sending in my report now. My issue *maybe* is related to cgroups/docker.
I don't think I saw this issue until I started trying to request
hugepages from a docker container.
But from what I can see, some processes just... do not give up the pages
after they exit. At least not in a way that the kernel can pick up on.
Instead I end up with pages that are not available, I cannot free them,
and I can find no evidence of them in /dev/hugepages, ipcs, or
/proc/*/numa_maps. They are just ghosts!
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1651609
Title:
Missing hugepages in xenial on 4.4.0-36-generic
Status in linux package in Ubuntu:
Confirmed
Bug description:
When spawning multiple VMs and then shutting then down there are
hugepages that are unaccounted for, they don't show up in "ipcs -m" or
on in /dev/hugepages/
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