kernel-packages team mailing list archive

[Benjamin Drung <bdrung@xxxxxxxxx>]

I fail to come up with a use-case that just wants to add CPU/RAM without
onlining it sooner or later. For virtual environments, you add CPU/RAM
to use it and therefore want to online it once it appears. In a cloud
environment (like ProfitBricks), it makes no sense to add CPU/RAM
without using it, because you have to pay for it.

Hot-add is supposed to work on recent kernels (>= 3.10). Kernel 3.2 had
an issue, but I can't remember if adding CPU/RAM or onlining it causes
the issue.

I would be happy to unconditionally turning hot-add on and SRU the udev
rule back to Ubuntu 14.04.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1233466

Title:
  Hot-Add Memory failing for lack of udev rule

Status in linux package in Ubuntu:
  Confirmed
Status in systemd package in Ubuntu:
  Fix Released

Bug description:
  It appears that the Hot-Add mechanism is not working because of lack
  of a udev rule. The required rule is attached to this bug. Please
  include it.

  Furthermore, please ensure that the following patches are included:

  https://git.kernel.org/cgit/linux/kernel/git/next/linux-
  next.git/commit/drivers/hv?id=20138d6cb838aa01bb1b382dcb5f3d3a119ff2cb

  https://git.kernel.org/cgit/linux/kernel/git/next/linux-
  next.git/commit/drivers/hv?id=c5e2254f8d63a6654149aa32ac5f2b7dd66a976d

  https://git.kernel.org/cgit/linux/kernel/git/next/linux-
  next.git/commit/drivers/hv?id=ed07ec93e83ec471d365ce084e43ad90fd205903

  The above patches should be in but just wanted to ensure that you guys
  got these.

  Thanks again for the great last minute help.
  Abhishek

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1233466/+subscriptions