[Bug 1788321] Re: swapon failed: invalid argument

[Phillip Susi]

This doesn't happen on amd64.  Do you also have to re-run mkswap when
switching back to the older, working kernel, or does simply using the
other kernel let you run swapon on the same file that doesn't work with
the newer kernel?


** Changed in: linux (Ubuntu)
       Status: Incomplete => Confirmed

** Changed in: util-linux (Ubuntu)
       Status: Confirmed => Invalid

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Title:
  swapon failed: invalid argument

Status in linux package in Ubuntu:
  Confirmed
Status in util-linux package in Ubuntu:
  Invalid

Bug description:
  Environment:
   - Ubuntu 18.04.1 LTS
   - Linux 4.15.0-32-generic i686

  Description:
  When I try to mount my swap partition or my swap file, I get "swapon failed: invalid argument" .

  Steps to reproduce:
  1) sudo bash
  2) dd if=/dev/zero of=/swapfile bs=1024 count=524288
  3) mkswap /swapfile
  4) chown root:root /swapfile
  5) chmod 0600 /swapfile
  6) swapon /swapfile
  Last execution returns "swapon failed: invalid argument" .

  I'm almost sure it's a bug because I have no problems using Linux
  4.15.0-29-generic instead of Linux 4.15.0-32-generic. Also, no
  problems using Ubuntu 18.04.1 LTS Live CD.

  Regards.

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