$sudo sysctl -w kernel.dmesg_restrict=0
kernel.dmesg_restrict = 0
$dmesg -l emerg
$dmesg -l alert
$dmesg -l crit
$dmesg -l err
[    1.270092] nvidiafb: unknown NV_ARCH
[    5.531992] cgroup: cgroup2: unknown option "memory_recursiveprot"
$dmesg -l warn
[    0.017384] ACPI BIOS Warning (bug): Optional FADT field Pm2ControlBlock has valid Length but zero Address: 0x0000000000000000/0x1 (20180810/tbfadt-615)
[    1.270040] nvidiafb_setup START
[    1.270047] nvidiafb_probe START
[   12.329696] nvidia: loading out-of-tree module taints kernel.
[   12.329710] nvidia: module license 'NVIDIA' taints kernel.
[   12.329711] Disabling lock debugging due to kernel taint
[   12.486289] NVRM: loading NVIDIA UNIX x86_64 Kernel Module  470.103.01  Thu Jan  6 12:10:04 UTC 2022
[   31.547073] resource sanity check: requesting [mem 0x000c0000-0x000fffff], which spans more than PCI Bus 0000:00 [mem 0x000c0000-0x000dffff window]
[   31.547483] caller _nv000722rm+0x1ad/0x200 [nvidia] mapping multiple BARs
[   40.099402] kauditd_printk_skb: 11 callbacks suppressed
$