linux-kernel - Re: 100 ms boot time increase regression in acpi_init()/acpi_scan

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Message-ID: <20220131221644.GA516851@bhelgaas>
Date:   Mon, 31 Jan 2022 16:16:44 -0600
From:   Bjorn Helgaas <helgaas@...nel.org>
To:     Paul Menzel <pmenzel@...gen.mpg.de>
Cc:     "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>, linux-pci@...r.kernel.org,
        regressions@...ts.linux.dev
Subject: Re: 100 ms boot time increase regression in
 acpi_init()/acpi_scan_bus()

On Mon, Jan 10, 2022 at 12:29:44PM +0100, Paul Menzel wrote:
> PS: Do you know of GNU/Linux live systems that are available for all Linux
> kernel releases and have an initrd, that just stores/uploads the output of
> `dmesg`?

That would be pretty slick.

There is a collection of dmesg logs at https://github.com/linuxhw/Dmesg,
mentioned earlier:
https://lore.kernel.org/r/82035130-d810-9f0b-259e-61280de1d81f@redhat.com