From mboxrd@z Thu Jan  1 00:00:00 1970
From: Richard Guy Briggs <rgb@redhat.com>
Subject: Re: Logging from within kernel
Date: Sun, 25 Nov 2018 12:06:03 -0500
Message-ID: <20181125170603.aoxny4bygvgwtvcz@madcap2.tricolour.ca>
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On 2018-11-24 01:47, Ranran wrote:
> Hello,
> 
> Is it possible to log all messages from within kernel, (without any
> userspace application and daemon) ?

No.  The log messages leave the kernel via the audit netlink socket and
get consumed by a userspace process.

There is no facility to write it directly to disk in the kernel if that
is what you are asking.

> Ran

- RGB

--
Richard Guy Briggs <rgb@redhat.com>
Sr. S/W Engineer, Kernel Security, Base Operating Systems
Remote, Ottawa, Red Hat Canada
IRC: rgb, SunRaycer
Voice: +1.647.777.2635, Internal: (81) 32635