From: Greg KH <greg@kroah.com>
To: Jeffrey Walton <noloader@gmail.com>
Cc: kernelnewbies <kernelnewbies@kernelnewbies.org>
Subject: Re: Disable EISA and probes
Date: Sat, 5 Sep 2020 16:52:25 +0200 [thread overview]
Message-ID: <20200905145225.GA101470@kroah.com> (raw)
In-Reply-To: <CAH8yC8=NqhD8KV2Rp0MVkJw8aEV55m9EmsyaO0NDG6X_G30GCg@mail.gmail.com>
On Sat, Sep 05, 2020 at 09:17:43AM -0400, Jeffrey Walton wrote:
> On Sat, Sep 5, 2020 at 7:37 AM Greg KH <greg@kroah.com> wrote:
> >
> > On Sat, Sep 05, 2020 at 07:31:13AM -0400, Jeffrey Walton wrote:
> > > On Sat, Sep 5, 2020 at 2:15 AM Greg KH <greg@kroah.com> wrote:
> > > >
> > > > On Fri, Sep 04, 2020 at 10:57:38PM -0400, Jeffrey Walton wrote:
> > > > > Hi Everyone,
> > > > >
> > > > > I would like to disable EISA and its probes during boot. I found the
> > > > > docs at https://www.kernel.org/doc/html/latest/driver-api/eisa.html,
> > > > > but it does not discuss how to disable EISA or the probes.
> > > > >
> > > > > I also found https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1543919,
> > > > > where folks are wondering why EISA is enabled by default nowadays. And
> > > > > one person asks about a kernel option to disable it (like I am doing).
> > > > >
> > > > > I'd like to add a boot param like eisa=0 or eisa=off, but I suspect
> > > > > it's not that easy. Looking at the three documented kernel parameters,
> > > > > they all enable EISA and probes.
> > > > >
> > > > > How do I disable EISA and the probes?
> > > >
> > > > Build a kernel without EISA in it at all? That's the simplest way as
> > > > you must have some custom hardware that doesn't like this, so a
> > > > custom-configuration seems like the best option.
> > >
> > > Nothing custom. I just have modern hardware.
> > >
> > > What's the purpose of including EISA by default? It has not been used
> > > in 25 years.
> >
> > distro kernels have to support everything. The kernel should still just
> > work just fine with it enabled but not present, right?
>
> Modern distros and their minimum requirements preclude EISA. One
> cannot meet a distros minimum requirements and have EISA.
Then file a bug with your distro to have it removed from their kernel
images.
> > > > Did you try that and it did not work? What is the problem of EISA at
> > > > boot anyway?
> > >
> > > No, I did not build a custom kernel. I was looking for kernel options
> > > to disable it.
> >
> > Again, why? What is breaking because it is enabled in your kernel?
>
> Why do you assume something is broke?
Why would you want to disable it? It's not running on your system, so
how can it affect you?
greg k-h
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next prev parent reply other threads:[~2020-09-05 14:52 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-05 2:57 Disable EISA and probes Jeffrey Walton
2020-09-05 6:15 ` Greg KH
2020-09-05 11:31 ` Jeffrey Walton
2020-09-05 11:37 ` Greg KH
2020-09-05 13:17 ` Jeffrey Walton
2020-09-05 14:52 ` Greg KH [this message]
2020-09-05 15:11 ` Jeffrey Walton
2020-09-05 20:25 ` Valdis Klētnieks
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