linux-kernel - Re: [PATCH V5 2/2] rpm-pkg: avoid install/remove the running kernel

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Date: Thu, 18 Jan 2024 15:12:45 +0100
From: Jose Ignacio Tornos Martinez <jtornosm@...hat.com>
To: masahiroy@...nel.org
Cc: dcavalca@...a.com,
	jtornosm@...hat.com,
	linux-kbuild@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	nathan@...nel.org,
	ndesaulniers@...gle.com,
	nicolas@...sle.eu,
	stable@...r.kernel.org
Subject: Re: [PATCH V5 2/2] rpm-pkg: avoid install/remove the running kernel

> What is the problem with this?
In my opinion, it is risky to remove the kernel that is running, that is
the reason why I am trying to protect this.
If you try to remove or update (and the running kernel is removed), if the
kernel and modules are already preloaded in memory, it could not happen
anything but some extra action could be necessary or automatically started,
and even the new kernel could not boot.
Fedora and others are taking this into account with upper tools and declare
the running kernel as protected avoinding this action. But others
(i.e. openSUSE Tumbleweed) allow this behavior.
It may only be a safety measure but it can also be beneficial to avoid
problems, just in case. 
Besides, in this way, all the tested distributions would have the same
behavior.

If it is ok, I will create a following version patch describing the problem
better and using indentation as you suggested for the other patch.

Thanks

Best regards
José Ignacio