Subject: Re: -current boot over network
To: Gordon W. Ross <gwr@mc.com>
From: Paulo Alexandre Pinto Pires <pappires@vortex.del.ufrj.br>
List: port-sun3
Date: 05/09/1997 15:38:35
Hello, Gordon and all.

> > > > This is my problem.  The machine halts at multiuser boot, with
> > > > the following message:
> > > > 
> > > > 	pmap_fault: kernel_map & va < avail
> 
> It means the kernel took an MMU fault (page not mapped)
> at an address where the kernel does not allows faults.
> [...]
> > Stopped at	_Debugger+0x6: unlk a6
> > db> trace
> > _Debugger(0,8,e553e00,ee87b38,e075c1a) + 6
> > __pmap_fault(e100000,0,1) + 32
> > _trap(8,145,8) + 3ca
> > sun3_mmu_specific(?)
> > _nfs_reply(e528680) + 38
> > _nfs_request(e554d80,e554700,7,0,e525a80,ee87d20,ee87d1c,ee87d18) + 31c
> 
> Are your kernel sources up-to-date with -current?

I really tried to track the problem down, but I lack both time and
experience.  I'd really like to know if anybody else had similar
problems netbooting their Sun 3's with -current, especially the 3/60,
and how he/she solved it.

I know that the project includes many coding areas, but if anyone
has time to spend on this, my results point me to somewhere in a
call to mtod in line 670 of nfs_socket.c (as of Apr 09 1997).  I
don't want to bias any search, however.

---
	Pappires