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Date:      Fri, 28 Apr 2000 15:13:20 -0700 (PDT)
From:      jocke__@linuxmail.org
To:        freebsd-gnats-submit@FreeBSD.org
Subject:   kern/18285: the system froze when use scon -s 50
Message-ID:  <200004282213.PAA04986@freefall.freebsd.org>

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>Number:         18285
>Category:       kern
>Synopsis:       the system froze when use scon -s 50
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Apr 28 15:20:02 PDT 2000
>Closed-Date:
>Last-Modified:
>Originator:     Jocke
>Release:        4.0 RELEASE
>Organization:
>Environment:
FreeBSD 192.168.0.1 4.0-RELEASE #10: Sat Apr 15 13:34:13 GMT 2000
root@FreeBSD.domain:/usr/src/sys/compile/Jockes i386
>Description:
When changes the console font, and how many lines to use. The system frozen
some times :( I type this, and sometimes the system frozen....

loadfont -c0 -f /usr/share/misc/pcvtfonts/vt220l.808
scon -s 50

And some times... the system frozen, and this msg is outputed by the kernel:

Fatal trap 12:	Page Fault while in kernel mode
Fault Virtual address	=	0xc0d0a000
Fault Code		=	Supervisor read, Page not present
Instruction Pointer	=	0x8:0xc02221ae
Stack Pointer		=	0x10:0xcaa60cf8
Frame Pointer		=	0x10:0xcaa60d20
Code Segment		=	base 0x0, limit 0xfffff, type 0x1b
				DPL 0, pres1, def32 1, gran 1
Processor eflags	=	interrupt enabled, resume, IOPL=0
Current Process		=	532(scon)
Trap number		=	12
Panic: Page fault
Syncing disks... 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16
giving up on 16 buffers
Uptime 37m11s

>How-To-Repeat:
run the command:
loadfont -c0 -f /usr/share/misc/pcvtfonts/vt220l.808
and the command:
scon -s 50

run the last command many times, and try different tty:s and some times
the problem occur.


>Fix:


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


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