Disabling CPU C-states in bios seems to solve this issue (however, this
solution has an impact on the battery life).
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https://bugs.launchpad.net/bugs/1930923
Title:
PS:
On 5.08 kernel, the bug appears too, but in different form. Instead of
"whole-kernel-freeze", some processes trying to write on btrfs filesystem hung,
same as some system utilities. The hanged processes sometimes remainded in the
system as zombie (as orphans under systemd init), without
Public bug reported:
If the notebook (DELL 5590) is connected to USB-C dock I-Tec Metal Nano
https://i-tec.pro/en/produkt/c31nanodocklanpd-2/
occasionally (in few hours) the kernel locks itself and hard reset have to be
done.
There are then usually errors in "journalctl" (after some occurences,
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