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Date:      Mon, 30 Jul 2001 17:39:49 -0400
From:      Brian Dean <bsd@bsdhome.com>
To:        John Hay <jhay@icomtek.csir.co.za>
Cc:        freebsd-stable@FreeBSD.ORG
Subject:   Re: ata timeouts after debug commits
Message-ID:  <20010730173949.A69298@neutrino.bsdhome.com>
In-Reply-To: <200107302007.f6UK78K54426@zibbi.icomtek.csir.co.za>; from jhay@icomtek.csir.co.za on Mon, Jul 30, 2001 at 10:07:08PM %2B0200
References:  <20010730152647.A68471@neutrino.bsdhome.com> <200107302007.f6UK78K54426@zibbi.icomtek.csir.co.za>

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On Mon, Jul 30, 2001 at 10:07:08PM +0200, John Hay wrote:

> > > At the end I tracked it down to these commits:
> > > 
> > > src/sys/i386/i386/db_trace.c,v 1.35.2.1 2001/07/12 02:57:11 bsd
> > > src/sys/i386/i386/support.s,v 1.67.2.4 2001/07/12 02:57:11 bsd
> > > src/sys/i386/include/cpufunc.h,v 1.96.2.2 2001/07/12 02:57:11 bsd
> > > 
> 
> Maybe it isn't the code itself but just that things moved? I tried the
> snaps on internat and the ones before July 13 worked, but Jul 13 and
> later didn't work. Even a fairly stripped down kernel with later sources
> didn't work until I backed out those 3 files.

I don't know, I suppose that's possible.  But if you didn't have
options DDB in your kernel, the db_trace.c file is not included in the
kernel you built.  And the changes to support.s and cpufunc.h merely
converted a real function to an in-line function, and added a few
previously non-existant in-line functions (which are only used by ddb
at the moment), but otherwise there was no change.  Even the function
that was converted from real to in-line would only called in certain
circumstances during a debugger trace trap, so I'm having a hard time
pinning the problem on the above commits.

If you get access to the machine again, see if you can hook the
machine up to use a serial console or something and capture the bootup
messages, a verbose boot would be good.  Post that out and somebody
may spot something.

Also, you mentioned the date of the 13th, how about a more recent
-stable snapshot?  What was the latest snapshot you tried?

Thanks,
-Brian
-- 
Brian Dean
bsd@FreeBSD.org
bsd@bsdhome.com

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