Ubuntu
linux-aws package

  1. Xenial (16.04)
  2. Bug #1668129
  3. Comment #35

Comment 35 for bug 1668129

Revision history for this message
Dan Streetman (ddstreet) wrote :

> Excellent. Sanity check here: This also means that trusty is not affected because the udev
> rules don't match.
...
> in xenial...
> and includes ATTR{[dmi/id]sys_vendor}=="Xen", GOTO="vm_hotadd_apply" which does trigger the bug.

that's correct, on 14.04 the Xen balloon memory is not switched online because the rule doesn't match on Xen systems, as you pointed out. In an AWS instance, commenting out the memory hotadd udev rule in 16.04 changes its behavior (re: memory hotadd) to match 14.04, which works around the bug.