FS#4077 - ERROR level instead of INFO level in syslog messages from BusyBox components (crond)

[openwrt-bot]

salexa74:

The [[https://git.busybox.net/busybox/tree/Config.in?h=1_31_0#n342|FEATURE_SYSLOG_INFO]] option appeared in BusyBox v. 1.31.0. But in OpenWRT this option is disabled by default: [[https://github.com/openwrt/openwrt/blob/master/package/utils/busybox/Config-defaults.in#L82-L84|master]], [[https://github.com/openwrt/openwrt/blob/openwrt-21.02/package/utils/busybox/Config-defaults.in#L82-L84|openwrt-21.02 branch]] (in order to save about 200 bytes?!). As a result, BusyBox components (for example, crond) in syslog write all messages with the ERROR level instead of INFO level, which misleads users:
Sun Oct 10 19:07:35 2021 cron.err crond[8795]: crond (busybox 1.31.0) started, log level 5
Sun Oct 10 19:08:00 2021 cron.err crond[8795]: USER root pid 9035 cmd /usr/bin/test.sh
Sun Oct 10 19:08:00 2021 cron.err crond[8795]: USER root pid 9036 cmd echo "hello"

[openwrt-bot]

chder:

I noticed this as well when it confused me into thinking the cron was somehow failing to run.

I have openwrt forwarding to a syslog server and the logs viewer over there is showing "Severity: Error"

Taking a peek at logread on the router itself I get:

Tue Feb 1 21:45:00 2022 cron.err crond[1636]: USER root pid 22437 cmd flock -n /var/lock/persist.lock /etc/package-list/persist.sh
Tue Feb 1 21:50:00 2022 cron.err crond[1636]: USER root pid 22515 cmd flock -n /var/lock/persist.lock /etc/package-list/persist.sh
Tue Feb 1 21:55:00 2022 cron.err crond[1636]: USER root pid 22586 cmd flock -n /var/lock/persist.lock /etc/package-list/persist.sh
Tue Feb 1 22:00:00 2022 cron.err crond[1636]: USER root pid 22664 cmd flock -n /var/lock/persist.lock /etc/package-list/persist.sh


According to ps crond is running with:

/usr/sbin/crond -f -c /etc/crontabs -l 8


root@ROUTER:~# crond --help + crond --help BusyBox v1.33.2 (2022-01-23 10:30:30 UTC) multi-call binary.

Usage: crond [-fbS] [-l N] [-L LOGFILE] [-c DIR]

    -f      Foreground
    -b      Background (default)
    -S      Log to syslog (default)
    -l N    Set log level. Most verbose 0, default 8
    -L FILE Log to FILE
    -c DIR  Cron dir. Default:/etc/crontabs