Boot all yes config kernel with QEMU

[Tobin C. Harding]

On Tue, Oct 23, 2018 at 12:22:44AM -0400, valdis.kletnieks at vt.edu wrote:
> On Tue, 23 Oct 2018 13:56:42 +1100, "Tobin C. Harding" said:
> 
> > I'd like to build and boot an allyesconfig kernel with QEMU.  Building
> > is no problem but when I try to boot it I get problems because the host
> > system does not support features requested by the VM.
> >
> > How does one go about testing an allyesconfig kernel?
> 
> As you have noticed, there's no guarantee that a allyesconfig kernel will boot in
> a VM because the VM doesn't support something.  Note that you're going to have
> the exact same issues booting on real hardware - you'll discover that there's configs
> that won't boot on real hardware either - and even if it boots, you'll probably not have
> the I/O devices to test even a third of the drivers unless you have a really well stocked
> test lab.
> 
> But then, all(yes|mod|no)config aren't intended for actual booting and testing - they're
> pretty much build testing all the options in one build.
> 
> Basically, one of two things happen after building an all-something-config:
> 
> 1) The build completes and you get on with your life
> 
> 2) The build fails, and you get to send an email telling the maintainer that
> their driver for the Frobnozz 1300 Widget won't build in =y in kernel 4.21-rc2,
> or whatever your build died on.

I love this answer :)  thanks Valdis.  If you are taking a walk and feel
like pondering something; any ideas how I could get the most files
possible to show up in /proc and /sys?

thanks,
Tobin.
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