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Date: Wed, 11 Apr 2001 22:24:54 +0200 (CEST)
From: Philippe CASIDY <pcasidy@casidy.com>
Reply-To: pcasidy@casidy.com
To: FreeBSD-gnats-submit@freebsd.org
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Subject: kern/26501: Forever loop is isa/sio.c
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>Number:         26501
>Category:       kern
>Synopsis:       Unsuported PCCARD freeze the kernel in isa/sio.c
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Apr 11 13:30:00 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator:     Philippe CASIDY
>Release:        FreeBSD 4.2 i386
>Organization:
>Environment:
System: FreeBSD 4.2-Stable i386


	
>Description:
	If one insert an unsupported modem PCCARD such as 3COM 3056 with
	good entries in pccard.conf, the kernel freeze and the only
	solution is to hard reset the computer.
	There is a while(TRUE) at line 1469 of isa/sio.c
	$FreeBSD: src/sys/isa/sio.c,v 1.291.2.16 2001/03/12 13:47:29 sanpei Exp $
	which is not interruptable. That freezes the kernel if the device is
	not recognized.
>How-To-Repeat:
	Modify the pccard.conf to recognize an unsupported sio card.
	Insert the card with pccardd running.
>Fix:

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

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