[Bug 1903468] Re: Endless "Cache Refresh" on Software Update settings change

[Plamen]

This is the log after `journalctl -b 0` if its still needed.
```
$ journalctl -b 0
-- Logs begin at Wed 2020-11-18 15:14:32 EET, end at Wed 2020-12-30 02:53:25 EET. --
дек 30 02:38:23 desktop kernel: Linux version 5.4.0-58-generic (buildd at lcy01-amd64-004) (gcc version 9.3.0 (Ubuntu 9.3.0-17ubuntu1~20.04)) #64-Ubuntu SMP >
дек 30 02:38:23 desktop kernel: Command line: BOOT_IMAGE=/boot/vmlinuz-5.4.0-58-generic root=UUID=db78bb87-80bc-4175-935a-18f69d5c471d ro quiet splash
дек 30 02:38:23 desktop kernel: KERNEL supported cpus:
дек 30 02:38:23 desktop kernel:   Intel GenuineIntel
дек 30 02:38:23 desktop kernel:   AMD AuthenticAMD
дек 30 02:38:23 desktop kernel:   Hygon HygonGenuine
дек 30 02:38:23 desktop kernel:   Centaur CentaurHauls
дек 30 02:38:23 desktop kernel:   zhaoxin   Shanghai  
дек 30 02:38:23 desktop kernel: x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers'
дек 30 02:38:23 desktop kernel: x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers'
дек 30 02:38:23 desktop kernel: x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers'
дек 30 02:38:23 desktop kernel: x86/fpu: xstate_offset[2]:  576, xstate_sizes[2]:  256
дек 30 02:38:23 desktop kernel: x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'compacted' format.
дек 30 02:38:23 desktop kernel: BIOS-provided physical RAM map:
дек 30 02:38:23 desktop kernel: BIOS-e820: [mem 0x0000000000000000-0x000000000009d3ff] usable
дек 30 02:38:23 desktop kernel: BIOS-e820: [mem 0x000000000009d400-0x000000000009ffff] reserved
дек 30 02:38:23 desktop kernel: BIOS-e820: [mem 0x00000000000e0000-0x00000000000fffff] reserved
дек 30 02:38:23 desktop kernel: BIOS-e820: [mem 0x0000000000100000-0x0000000009d01fff] usable
дек 30 02:38:23 desktop kernel: BIOS-e820: [mem 0x0000000009d02000-0x0000000009ffffff] reserved
дек 30 02:38:23 desktop kernel: BIOS-e820: [mem 0x000000000a000000-0x000000000a1fffff] usable
дек 30 02:38:23 desktop kernel: BIOS-e820: [mem 0x000000000a200000-0x000000000a20bfff] ACPI NVS
дек 30 02:38:23 desktop kernel: BIOS-e820: [mem 0x000000000a20c000-0x00000000da1d6fff] usable
дек 30 02:38:23 desktop kernel: BIOS-e820: [mem 0x00000000da1d7000-0x00000000db6d5fff] reserved
дек 30 02:38:23 desktop kernel: BIOS-e820: [mem 0x00000000db6d6000-0x00000000db857fff] usable
дек 30 02:38:23 desktop kernel: BIOS-e820: [mem 0x00000000db858000-0x00000000dbc6bfff] ACPI NVS
дек 30 02:38:23 desktop kernel: BIOS-e820: [mem 0x00000000dbc6c000-0x00000000dc9defff] reserved
дек 30 02:38:23 desktop kernel: BIOS-e820: [mem 0x00000000dc9df000-0x00000000deffffff] usable
дек 30 02:38:23 desktop kernel: BIOS-e820: [mem 0x00000000df000000-0x00000000dfffffff] reserved
дек 30 02:38:23 desktop kernel: BIOS-e820: [mem 0x00000000f8000000-0x00000000fbffffff] reserved
дек 30 02:38:23 desktop kernel: BIOS-e820: [mem 0x00000000fd000000-0x00000000ffffffff] reserved
дек 30 02:38:23 desktop kernel: BIOS-e820: [mem 0x0000000100000000-0x000000081f37ffff] usable
дек 30 02:38:23 desktop kernel: NX (Execute Disable) protection: active
дек 30 02:38:23 desktop kernel: SMBIOS 3.2.1 present.
дек 30 02:38:23 desktop kernel: DMI: To Be Filled By O.E.M. To Be Filled By O.E.M./X570 Phantom Gaming 4, BIOS P1.30 07/12/2019
дек 30 02:38:23 desktop kernel: tsc: Fast TSC calibration failed
дек 30 02:38:23 desktop kernel: e820: update [mem 0x00000000-0x00000fff] usable ==> reserved

```

-- 
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https://bugs.launchpad.net/bugs/1903468

Title:
  Endless "Cache Refresh" on Software Update settings change

Status in software-properties package in Ubuntu:
  Incomplete

Bug description:
  After reapplying some of the checkboxes under "Software & Updates" ->
  "Other Software" after distro upgrade, a window with title "Cache
  Refresh" pops and never disappears. (check screenshot bellow)

  > lsb_release -rd
  Description:	Ubuntu 20.04.1 LTS
  Release:	20.04

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: software-properties-gtk 0.98.9.2
  ProcVersionSignature: Ubuntu 5.4.0-52.57-generic 5.4.65
  Uname: Linux 5.4.0-52-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.20.11-0ubuntu27.11
  Architecture: amd64
  CasperMD5CheckResult: skip
  CurrentDesktop: GNOME
  Date: Mon Nov  9 01:55:13 2020
  ExecutablePath: /usr/bin/software-properties-gtk
  InstallationDate: Installed on 2015-06-17 (1971 days ago)
  InstallationMedia: Ubuntu-GNOME 15.04 "Vivid Vervet" - Release amd64 (20150422)
  InterpreterPath: /usr/bin/python3.8
  PackageArchitecture: all
  Python3Details: /usr/bin/python3.8, Python 3.8.5, python3-minimal, 3.8.2-0ubuntu2
  PythonDetails: /usr/bin/python2.7, Python 2.7.18, python-is-python2, 2.7.17-4
  SourcePackage: software-properties
  UpgradeStatus: Upgraded to focal on 2020-09-29 (40 days ago)

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