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From:   Matthew Garrett <mjg59@google.com>
Date:   Thu, 05 Apr 2018 00:22:02 +0000
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Subject: Re: An actual suggestion (Re: [GIT PULL] Kernel lockdown for secure boot)
To:     jmorris@namei.org
Cc:     David Howells <dhowells@redhat.com>, luto@kernel.org,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
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On Wed, Apr 4, 2018 at 4:25 PM James Morris <jmorris@namei.org> wrote:
> It's surely reasonable to allow an already secure-booted system to be
> debugged without needing to be rebooted.

alt-sysrq-x from a physical console will do that.