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[Bug 1233466] Re: Hot-Add Memory failing for lack of udev rule

 

Maintaining an ever-growing list of vendors is error-prone and TBH quite
silly. Are there any CPUs where we *don't* want hot-add? If not, why
can't the kernel just default to enabling this, instead of userspace
unconditionally turning this on? But if hot-add is supposed to work
everywhere, then for SRUs at least the udev rule could be simplified to
drop the vendor check.

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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

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References