When increasing the system log level, I would expect no messages lower than the selected level to be visible in the system log.
Here are my logs (excerpt) after a reboot with the selected log level "Critical":
Wed Nov 10 09:37:10 2021 kern.notice kernel: [ 0.000000] Linux version 3.18.44 (app@runner-dscegnrx-project-7-concurrent-0) (gcc version 4.8.3 (OpenWrt/Linaro GCC 4.8-2014.04 unknown) ) #1 Tue Jan 26 10:39:56 UTC 2021
Wed Nov 10 09:37:10 2021 kern.debug kernel: [ 0.000000] MyLoader: sysp=091f5968, boardp=62cce00e, parts=3f4a872d
Wed Nov 10 09:37:10 2021 kern.info kernel: [ 0.000000] bootconsole [early0] enabled
Wed Nov 10 09:37:10 2021 kern.info kernel: [ 0.000000] CPU0 revision is: 00019374 (MIPS 24Kc)
Wed Nov 10 09:37:10 2021 kern.info kernel: [ 0.000000] SoC: Atheros AR9330 rev 1
Wed Nov 10 09:37:10 2021 kern.info kernel: [ 0.000000] Determined physical RAM map:
Wed Nov 10 09:37:10 2021 kern.info kernel: [ 0.000000] memory: 04000000 @ 00000000 (usable)
Wed Nov 10 09:37:10 2021 kern.info kernel: [ 0.000000] Initrd not found or empty - disabling initrd
Wed Nov 10 09:37:10 2021 kern.warn kernel: [ 0.000000] Zone ranges:
Wed Nov 10 09:37:10 2021 kern.warn kernel: [ 0.000000] Normal [mem 0x00000000-0x03ffffff]
Wed Nov 10 09:37:10 2021 kern.warn kernel: [ 0.000000] Movable zone start for each node
Wed Nov 10 09:37:10 2021 kern.warn kernel: [ 0.000000] Early memory node ranges
Wed Nov 10 09:37:10 2021 kern.warn kernel: [ 0.000000] node 0: [mem 0x00000000-0x03ffffff]
Wed Nov 10 09:37:10 2021 kern.info kernel: [ 0.000000] Initmem setup node 0 [mem 0x00000000-0x03ffffff]
Wed Nov 10 09:37:10 2021 kern.debug kernel: [ 0.000000] On node 0 totalpages: 16384
Wed Nov 10 09:37:10 2021 kern.debug kernel: [ 0.000000] free_area_init_node: node 0, pgdat 8037e2b0, node_mem_map 81000000
Wed Nov 10 09:37:10 2021 kern.debug kernel: [ 0.000000] Normal zone: 128 pages used for memmap
Wed Nov 10 09:37:10 2021 kern.debug kernel: [ 0.000000] Normal zone: 0 pages reserved
Wed Nov 10 09:37:10 2021 kern.debug kernel: [ 0.000000] Normal zone: 16384 pages, LIFO batch:3
Wed Nov 10 09:37:10 2021 kern.warn kernel: [ 0.000000] Primary instruction cache 64kB, VIPT, 4-way, linesize 32 bytes.
Wed Nov 10 09:37:10 2021 kern.warn kernel: [ 0.000000] Primary data cache 32kB, 4-way, VIPT, cache aliases, linesize 32 bytes
Wed Nov 10 09:37:10 2021 kern.debug kernel: [ 0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
Wed Nov 10 09:37:10 2021 kern.debug kernel: [ 0.000000] pcpu-alloc: [0] 0
Wed Nov 10 09:37:10 2021 kern.warn kernel: [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 16256
Wed Nov 10 09:37:10 2021 kern.notice kernel: [ 0.000000] Kernel command line: board=TLT-RUT200 console=ttyATH0,115200 rootfstype=squashfs,jffs2 noinitrd
Wed Nov 10 09:37:10 2021 kern.info kernel: [ 0.000000] PID hash table entries: 256 (order: -2, 1024 bytes)
Wed Nov 10 09:37:10 2021 kern.info kernel: [ 0.000000] Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
Wed Nov 10 09:37:10 2021 kern.info kernel: [ 0.000000] Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
Wed Nov 10 09:37:10 2021 kern.info kernel: [ 0.000000] Writing ErrCtl register=00000000
Wed Nov 10 09:37:10 2021 kern.info kernel: [ 0.000000] Readback ErrCtl register=00000000
...
Wed Nov 10 09:37:39 2021 user.notice firewall: Reloading firewall due to ifup of lan (br-lan)
Wed Nov 10 09:37:39 2021 daemon.notice netifd: radio0 (1995): command failed: Numerical result out of range (-34)
Wed Nov 10 09:37:41 2021 local1.notice fwblock[2275]: Started fwblock
Wed Nov 10 09:37:41 2021 local1.notice fwblock[2275]: Applying SSH blocks
Wed Nov 10 09:37:41 2021 local1.notice fwblock[2275]: Applying WebUI blocks
As you can see, the printed log messages include `info`, `notice` and `debug` entries. Is this a known bug or do I need to change other configuration values as well?
Firmware Version: RUT2XX_R_00.01.13.3
