Re: please see PR 59688 (re: [solved] Re: kernel hangs during boot)

----- Original Message -----
From: Doug White <dwhite_at_gumbysoft.com>
Date: Mon, 8 Dec 2003 12:40:36 -0800 (PST)
To: pseniura_at_techie.com
Subject: Re: please see PR 59688 (re: [solved] Re: kernel hangs during boot)

> On Mon, 8 Dec 2003 pseniura_at_techie.com wrote:
> 
> >
> > I filed a PR several weeks ago on this 'device-md'-in-the-kernel bug.
> > The PR has yet to be assigned.
> > Now it's gone out to 5.2-Release, I bet everyone is going to see this bug.
> 
> Enabling MD_ROOT_SIZE specifies that a MDROOT has been compiled into the
> kernel, and gives its size so the volume will be appropriately
> initialized.  So specifying this option in the beginning was a mistake.
> There is absolutely no need for MD_ROOT_SIZE in any production kernel,
> unless you are booting diskless or some other special need.
> 
> I think we have to blame PEBKAC on this although a word of caution in
> NOTES is probably warranted.

Oh I did include MDROOT in my kernel, as the PR's attached files will
show.  I had to take _all_ bits dealing with 'md' out of the kernel
for it to boot-up w/o a panic.
(was hoping to use md as a RAMdisk thing, otherwise it's no loss for me,
but I did want to report it asap before -Release was affected, since
it is included in GENERIC.)
(btw I keep forgetting to include a sig)

  -- Paul Seniura
     System Specialist
     State of Okla. D.O.T.


> > ________
> >
> > On Sun, 7 Dec 2003, Doug White wrote:
> >
> > > On Sat, 6 Dec 2003, Wesley Morgan wrote:
> > >
> > > > > Eh, this is you hitting the gdb key.  how about 'ps'?
> > > >
> > > > Hooray for serial consoles!
> > >
> > > You didn't compile with BREAK_TO_DEBUGGER? you still hit the ddb key :)
> > >
> > > I'm still not seeing anything hanging. Have you tried booting with -v and
> > > seeing if ata is trying anything, for instance?
> >
> > Ok, I've found the culprit:
> >
> > options        MD_ROOT_SIZE=10
> >
> > Removing that from my kernel config allows it to boot (this is
> > some cruft left over from previous experiments). As for WHY it won't boot,
> > I'll leave that to those with much more knowledge than me!
> >
> > --
> > Hi! I'm a .signature virus! Copy me into your ~/.signature to help me spread!
> >
> > ________
> >
> 
> -- 
> Doug White                    |  FreeBSD: The Power to Serve
> dwhite_at_gumbysoft.com          |  www.FreeBSD.org
> 

-- 
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