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Date: Tue, 20 Feb 2001 10:32:00 -0800 (PST)
From: is92518@e.cc.titech.ac.jp
To: freebsd-gnats-submit@FreeBSD.org
Subject: OS Hungs up when using with a Battery of Laptop PC(Dynabook 2520JA).
X-Send-Pr-Version: www-1.0

>Number:         25235
>Category:       kern
>Synopsis:       OS Hungs up when using with a Battery of Laptop PC(Dynabook 2520JA).
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Feb 20 10:40:01 PST 2001
>Closed-Date:    Thu Aug 29 13:43:40 PDT 2002
>Last-Modified:  Thu Aug 29 13:43:40 PDT 2002
>Originator:     Yoshisato YANAGISAWA
>Release:        4.2-STABLE("cvsup"ed at Feb. 18th,2001.)
>Organization:
Tokyo Institute of Technology. Dept. of Information Science.
>Environment:
FreeBSD shi-sanmei.pcc-software.org 4.2-STABLE FreeBSD 4.2-STABLE #0: Mon Feb 19 11:36:30 JST 2001     root@shi-sanmei.pcc-software.org:/usr/src/sys/compile/MYKERN  i386

>Description:
Whole system hungs up(symptons are such...no reaction to mouse moving and keybord typing,and no displaying of a screen) when running the machine with its battery on the kernel including ata(4) which is standard at 4.x-Releases and after.
I made sure this on "TOSHIBA Dynabook Satellite 2520CDSA".
It seems that if "CPU Sleep MODE(Battery setting of the machine's BIOS)" is Enabled,ata(4) doesn't work correctly.
>How-To-Repeat:
Enables "CPU Sleep MODE" at BIOS setting,and make the machine to work with its battery.
>Fix:
I found 2 solutions following...
1.
At BIOS setting,set "Battery Save Mode" to "User Setting" and Disables "CPU Sleep Mode".

2.
Use wdc(4) instead of ata(4).
!!Notice!!: wdc(4) doesn't exist at 5.x and after.
>Release-Note:
>Audit-Trail:
State-Changed-From-To: open->feedback 
State-Changed-By: iedowse 
State-Changed-When: Sun Nov 18 17:57:05 PST 2001 
State-Changed-Why:  

Does this still occur with a more recent stable? 

http://www.FreeBSD.org/cgi/query-pr.cgi?pr=25235 

From: Ian Dowse <iedowse@maths.tcd.ie>
To: freebsd-gnats-submit@freebsd.org
Cc:  
Subject: Re: kern/25235: OS Hungs up when using with a Battery of Laptop PC(Dynabook 2520JA). 
Date: Sun, 13 Jan 2002 18:09:55 +0000

 Adding a message I forgot about to the audit trail.
 
 In message <20011121222630G.is92518@e.cc.titech.ac.jp>, Yanagisawa Yoshisato wr
 ites:
 >
 >I am sorry to write to you late.
 >Well,It seems that the probrem occurs yet at 
 >the RELENG_4 stable of Nov. 21th.
 >System halt when boot without pluging in it's code to outlet.
 >
 >-------------------------------------------------
 >Yoshisato YANAGISAWA<is92518@e.cc.titech.ac.jp>
 >Dept. of Information Science.Tokyo Insitute of Technology.
 >-------------------------------------------------
 >
 >To Unsubscribe: send mail to majordomo@FreeBSD.org
 >with "unsubscribe freebsd-bugs" in the body of the message
State-Changed-From-To: feedback->closed 
State-Changed-By: ceri 
State-Changed-When: Thu Aug 29 13:43:19 PDT 2002 
State-Changed-Why:  
Feedback timeout. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=25235 
>Unformatted:
