On Tue, 22 Nov 2022 09:12:28 -0600 (CST) Dan Mack <m...@macktronics.com> wrote:
> It seems like dmesg content ages out over time. Is there a way to > leave the contents based on a fixed memory size instead? > > Dan > I think this is how it works: the kernel message bugger is of fixed size and kernel and syslog sequences (dmesg -a) share it. The other syslog users eventually puts enough content in there to displace all of kernel messages. If the kernel stays quiet, 'dmesg' then returns nothing, as by default it filters syslog entries that do not KERN facility out, see sbin/dmesg/dmesg.c. -- Alexander Kabaev
pgpERzqAOoi9r.pgp
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