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Date:      Sat, 9 Nov 2002 21:09:39 -0800
From:      Juli Mallett <jmallett@FreeBSD.org>
To:        current@FreeBSD.org
Subject:   Anyone seeing snp(4) problems?
Message-ID:  <20021109210938.A73683@FreeBSD.org>

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I just tried to "sudo watch ttyv1" and ran into the following:

% Fatal trap 12: page fault while in kernel mode
% fault virtual address	= 0x60
% fault code		= supervisor read, page not present
% instruction pointer	= 0x8:0xc1d7f4b8
% stack pointer	        = 0x10:0xca649b18
% frame pointer	        = 0x10:0xca649b20
% code segment		= base 0x0, limit 0xfffff, type 0x1b
% 			= DPL 0, pres 1, def32 1, gran 1
% processor eflags	= interrupt enabled, resume, IOPL = 0
% current process		= 66231 (watch)
% Waiting (max 60 seconds) for system process `vnlru' to stop...stopped
% Waiting (max 60 seconds) for system process `bufdaemon' to stop...stopped
% Waiting (max 60 seconds) for system process `syncer' to stop...stopped
% 
% syncing disks... 40 40 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 36 
% giving up on 36 buffers
% Uptime: 3d17h51m39s
% Rebooting...

Looks like use of a NULL structure, accessing member at offsetof==0x60?

Anyway, I couldn't get a dump, but I'll keep trying...  Also this kernel
is a bit stale, but it'll take a while to get the kernel on this box updated,
so I figured I'd go ahead and post now, and try with a new one when I can.

HTH HAND LMK
juli.
-- 
Juli Mallett <jmallett@FreeBSD.org>       | FreeBSD: The Power To Serve
Will break world for fulltime employment. | finger jmallett@FreeBSD.org
http://people.FreeBSD.org/~jmallett/      | Support my FreeBSD hacking!

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