I have been getting relatively consistent kernel panics on some call to find_css_set and sometimes a stack trace that mentions cgroups.
On 5.4.0 I don't get this same crash and I added blocking of auto-loading nvidia under the ramdisk just in case that's the issue, as I was sometimes getting a similar crash on 5.4.0. /etc/default/grub: GRUB_PRELOAD_MODULES=lvm GRUB_CMDLINE_LINUX="init=/usr/lib/systemd/systemd systemd.legacy_systemd_cgroup_controller=yes rd.driver.blacklist=nvidia rd.driver.blacklist=nvidia_modeset rd.driver.blacklist=nvidia_drm" GRUB_GFXPAYLOAD_LINUX="keep" The reason the legacy argument is there is because Docker won't work under the new cgroups, for now. I have a couple of modules, but the one that sticks out most is nvidia. This is the one I see in the stack trace. I have not seen a bug report on Gentoo or Nvidia's end. For now I've masked >5.4.0 gentoo-sources. Anyone else getting a similar issue? Thanks Andrew
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