Bug 18285

Summary: the system froze when use scon -s 50
Product: Base System Reporter: jocke__ <jocke__>
Component: kernAssignee: Ceri Davies <ceri>
Status: Closed FIXED    
Severity: Affects Only Me    
Priority: Normal    
Version: Unspecified   
Hardware: Any   
OS: Any   

Description jocke__ 2000-04-28 23:20:02 UTC 
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 rx0, 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.
Comment 1 Johan Karlsson freebsd_committer freebsd_triage 2002-05-11 20:46:09 UTC 
State Changed
From-To: open->feedback

Is this still a problem in more recent releases? 

Did you compile your kernel with sc0 or vt0 
as console driver?
Comment 2 Ceri Davies freebsd_committer freebsd_triage 2003-06-08 19:00:49 UTC 
State Changed
From-To: feedback->closed

Feedback timeout (6 months or more). 
I will handle any feedback that this closure generates.
Comment 3 Ceri Davies freebsd_committer freebsd_triage 2003-06-08 19:00:49 UTC 
Responsible Changed
From-To: freebsd-bugs->ceri

Feedback timeout (6 months or more). 
I will handle any feedback that this closure generates.