[Bug 1788321] Re: swapon failed: invalid argument

[Hugh Buntu]

Getting the same error on old bare metal:

4.15.0-88-generic #88-Ubuntu SMP Tue Feb 11 20:11:34 UTC 2020 x86_64
x86_64 x86_64 GNU/Linux

vendor_id	: GenuineIntel
cpu family	: 6
model		: 15
model name	: Intel(R) Pentium(R) Dual  CPU  T3400  @ 2.16GHz
stepping	: 13
microcode	: 0xa4
cpu MHz		: 1290.104
cache size	: 1024 KB

~# swapon -a 
swapon: /swapfile: swapon failed: Invalid argument

Swap partition also does not mount at boot.
I can run gparted, hit "swapon" on the right-click menu for the swap partition, and it mounts.


I don't have this problem on other harware/VMs with same build &
procedures.

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https://bugs.launchpad.net/bugs/1788321

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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