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Date:      Tue, 15 Aug 2000 18:15:41 -0500 (CDT)
From:      Visigoth <visigoth@telemere.net>
To:        current@freebsd.org
Subject:   Kernel explosion in -stable
Message-ID:  <Pine.BSF.4.21.0008151645440.66538-200000@mail.telemere.net>

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--0-863820600-966381341=:66538
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	Ok, first off I'm going to say that I know how weird the
configuration that I am working with is, but hear me out, it is actually a
useful config for what I am doing (if anyone knows any better ways to do
this sort of thing, tell me ;)

<explaination of config>
	I have a dual homed 4.1-STABLE box being used as a shell server
with NFS mounted mail spools and home dir's and NIS authentication all
from a backside network.  The problem is I don't want
our (few) shell users to be able to even ping the NFS backnetwork so I am
attempting to implement jail(8), but still need nis....
</explaination of config>

<explosion>
if I set the NON-jail-env (NJE) as an NIS server on the backnetwork, and
and ypbind to localhost in the jail-env (JE) or in the NJE if I log into
the JE as a local user and su to root I can successfully id users from the
NIS databases (yea!) , if, as a normal user I try to id anybody, or if I
try to log in to the JE as a user from the NIS database, the kernel dies
with:

Fatal trap 12:	page fault while in kernel mode
fault virtual address 	= 0x0
fault code 		= supervisor write, page not present
instruction pointer	= 0x8:0xc01af381
stack pointer		= 0x10:0xd5732dd4
frame pointer		= 0x10:0xd5732dd8
code segment		= base 0x0, limit 0xfff, type 0xb1, DPL 0
			= pres 1, def32 1, gran1
processor eflags	= interupt enable, resume, DOPL 0
current process 	= 12

panic			= page fault

I would include a dump but there it doesn't make one...  I attached a
dmesg if that helps but I doubt it.  I would like to at least fix this,
even if it means my functionality doesn't work, I just thought a huge
kernel fault like this should be taken care of.  I would look into it, but
I am only a junior wizard ;)

I would be happy to do a bunch of the work if anyone is willing to point
me in the right direction.... ;)



Damieon Stark
Sr. Unix Systems Administrator
visigoth@telemere.net

PGP Public Key: www.telemere.net/~visigoth/visigoth.asc

____________________________________________________________________________
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M$ -Where do you want to go today?	|
Linux -Where do you want to go tomorrow?|   FreeBSD - The POWER to serve
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