Ubuntu
ubuntu-release-upgrader package

  1. Bug #1863759
  2. Comment #3

Comment 3 for bug 1863759

Revision history for this message
Andrei Belov (defan) wrote :

Which hardware are you on?

I'm seeing exactly the same behavior on Ubuntu 19.10 and KDE Neon on Lenovo Ideapad S340-14API with AMD Ryzen 3200U / Radeon Vega Mobile Gfx on board.

The 5.3.0-28 kernel works just fine, while 5.3.0-40 shows the following effect:
 - on Ubuntu 19.10, booting never ends due to random "BUG: soft lockup - CPU#xx stuck for 23s! [system-udevd:383]" events, thus causing various jobs/services to hang forever;
 - on KDE Neon, I'm seeing failures with amdgpu driver somewhere in amdgpu_mm_rreg with a call trace ending with gfx_v9_0_set_safe_mode() call.

Appreciate any input.