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[Bug 1593293] Re: brd module compiled as built-in



I never used brd on Trusty, all my previous experience with it was on
Debian/Centos (they both have brd as 'm').

I've checked - even precise have it as 'y' - this make Ubuntu very
different compare to all other distributions.

Main problem is that 'y' makes brd 'OS only' because it size fixed. And
it makes impossible to free used by ramdisk memory by unloading module.

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  brd module compiled as built-in

Status in linux package in Ubuntu:

Bug description:
  Block RAM disk module (brd, CONFIG_BLK_DEV_RAM) compiled as 'y', that
  means it is 'built-in' and can not be unloaded or loaded with
  different parameters. This render module completely useless because
  user can not anymore change it size.

  Please change it back to 'm' (module) to allow users use this module.

  Affected kernels (so far): Xenial, Yakkety (4.4).

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