From owner-freebsd-hackers  Tue Mar 12  0:31:10 2002
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Date: Tue, 12 Mar 2002 00:30:16 -0800
From: Terry Lambert <tlambert2@mindspring.com>
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To: Mike Makonnen <mike_makonnen@yahoo.com>
Cc: "Clark C . Evans" <cce@clarkevans.com>,
	freebsd-hackers@freebsd.org
Subject: Re: panic: pmap_enter
References: <20020311210332.A38510@doublegemini.com> <1015919910.4901.5.camel@blackbox.pacbell.net>
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Mike Makonnen wrote:
> On Mon, 2002-03-11 at 18:03, Clark C . Evans wrote:
> >    panic: pmap_enter: attempted pmap_enter on 4MB page
> >
> > trace:
> >    Debugger
> >    panic
> >    pmap_enter
> >    vm_fault
> >    trap_pfault
> >    trap
> >    calltrap
> >
> 
> It seems to me that you are showing only the last part of the trace,
> which shows where a second panic occurred. While that may also be an
> issue the real reason for the panic occurred earlier. Please post the
> complete trace.

You faulted on a 4M page mapping for which backing store was
not assigned.

You are not permitted to create 4M pages without assigned
backing store (basically, you can't page them in and out).

Probably you are doing something incredibly weird that you
are not allowed to do, but don't want to tell us about...

-- Terry

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