[dm-devel] kcryptd, copy/remove big file, unresponsive system (GUI)

[Janusz Dziedzic]

Hello,

Tested with 5.4/5.8/5.11-rc4 with same problems - all cores 100% in WA.

Please check this:
https://launchpadlibrarian.net/520192412/5.8_kernel_2021-01-29%2013-44-35.png

nvme0n1 259:0 0 465,8G 0 disk
├─nvme0n1p1 259:1 0 512M 0 part /boot/efi
├─nvme0n1p2 259:2 0 732M 0 part /boot
└─nvme0n1p3 259:3 0 464,6G 0 part
  └─nvme0n1p3_crypt 253:0 0 464,6G 0 crypt
    ├─ubuntu--vg-root 253:1 0 463,6G 0 lvm /
    └─ubuntu--vg-swap_1 253:2 0 980M 0 lvm [SWAP]

Any idea how to tune/workaround this?
When remove/copy big file (~4GB) - no option to use
firefox/teams/slack ... for minute(s).

BR
Janusz