>Number:         443
>Category:       kern
>Synopsis:       Printer on Parallel Port can cause OS to crash ...
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    gnats-admin (Kernel Bug People)
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Aug 29 19:50:04 1994
>Originator:     Andrew Cagney
>Organization:
>Release:        NetBSD-1.0_BETA 1st Aug
>Environment:
	host - TP 486DX2, with 16mb RAM and GMIO-470 card
	printer - Lexmark 4039 10R
	from dmesg - lpt0 at isa0 port 0x378-0x37f irq 7
System: NetBSD bunyip 1.0_BETA NetBSD 1.0_BETA (GENERICAHA) #3: Mon Aug 1 16:48:16 PDT 1994 cgd@sun-lamp.cs.berkeley.edu:/usr/src/sys/arch/i386/compile/GENERICAHA i386


>Description:

Depending on how a remote Lexmark printer is configured, the PC may RESET(?).
The table below lists the different cases ...

	Parallel Protocol/Honor Init
	STANDARD/ON - RESET
	STANDARD/OFF - RESET
	FASTBYTES/ON - cp: /dev/lpt0: Operation not permitted
	FASTBYTES/OFF - Prints ok!

I'll call the effect on the pc a reset as the behavour is the same as someone
pressing the reset button on the front.

The problem could be either the OS or the Parallel Printer Card.


>How-To-Repeat:
	o	configure printer as per above
	o	# cp file /dev/lpt0
>Fix:
	Configure Lexmark printer as `FASTBYTES/OFF'.  NB: The default config
	is `FASTBYTES/ON'
>Audit-Trail:
>Unformatted:


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