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Date:      Sat, 24 Feb 2007 12:09:24 GMT
From:      Erich Schulman<iylan@bellsouth.net>
To:        freebsd-gnats-submit@FreeBSD.org
Subject:   kern/109486: Kernel panic after floppy boot for 6.0 to 6.2 upgrade
Message-ID:  <200702241209.l1OC9ONi079587@www.freebsd.org>
Resent-Message-ID: <200702241210.l1OCA41Q071438@freefall.freebsd.org>

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>Number:         109486
>Category:       kern
>Synopsis:       Kernel panic after floppy boot for 6.0 to 6.2 upgrade
>Confidential:   no
>Severity:       critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Feb 24 12:10:03 GMT 2007
>Closed-Date:
>Last-Modified:
>Originator:     Erich Schulman
>Release:        6.0
>Organization:
>Environment:
FreeBSD galaxia 6.0-RELEASE FreeBSD 6.0-RELEASE #0: Thu Nov  3 09:36:13 UTC 2005     root@x64.samsco.home:/usr/obj/usr/src/sys/GENERIC  i386

>Description:
I initially installed 6.0 because I got a like problem with 6.1. Now that 6.2 is out, I tried to upgrade to it.

I get the following error:

Fatal trap 12: page fault while in kernel mode
fault virtual address = 0xb5
fault code = supervisor read, page not present
instruction pointer = 0x20:0xc07e2f88
stack pointer = 0x28:0xc1020b8c
frame pointer = 0x28:0xc1020b8c
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 = 0 ()
trap number = 12
panic: page fault
Uptime: 1s

This problem occurs with 6.1 and 6.2 boot floppies (text above from 6.2). The 6.0 boot floppies have always worked ok.
>How-To-Repeat:
Boot from the boot floppy and kern 1-3 floppies. When the menu arrives, allow default choice. Kernel panic occurs.
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:



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