amdgpu crashes with simd exception in mode_support_and_system_configuration

Brief summary of the problem:

Display freezes during normal desktop use. SSH access from another computer still works. dmesg shows "simd exception" and a backtrace with dcn_bw_ceil2 and mode_support_and_system_configuration.

Hardware description:

• CPU: AMD Ryzen 3 3200G
• GPU: Integrated Radeon Vega 8
• System Memory: 32 GB
• Display(s): 2560x1440
• Type of Diplay Connection: DP

System infomration:

• Distro name and Version: Ubuntu 20.04
• Kernel version: 5.4.0-31
• Custom kernel: Ubuntu default from package linux-image-5.4.0-31-generic
• AMD package version: xserver-xorg-video-amdgpu 19.1.0-1

How to reproduce the issue:

Reproduction steps are not yet known, issue is very random and for me only occurs once every few weeks.

Attached files:

• Dmesg log dmesg.txt
• Decoded backtrace decoded_trace.txt

Related bug reports:

• https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1881134
• https://bugzilla.kernel.org/show_bug.cgi?id=206987 (contains reports with a more recent kernel version)