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Date: Sun, 4 Mar 2001 06:33:20 -0800 (PST)
From: stitzinger_r@fag.de
To: freebsd-gnats-submit@FreeBSD.org
Subject: Laptop with FreeBSD4.2 freezes in battery-use randomly for short time
X-Send-Pr-Version: www-1.0

>Number:         25521
>Category:       i386
>Synopsis:       Laptop with FreeBSD4.2 freezes in battery-use randomly for short time
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Mar 04 06:40:01 PST 2001
>Closed-Date:    Fri Aug 26 09:08:43 GMT 2005
>Last-Modified:  Fri Aug 26 09:08:43 GMT 2005
>Originator:     Rupert Stitzinger
>Release:        4.2
>Organization:
%
>Environment:
FreeBSD fbsd1.my.domain 4.2-RELEASE FreeBSD 4.2-RELEASE #14: Fri Mar  2 21:24:26 CET 2001     root@fbsd1.my.domain:/usr/src/sys/compile/MYKERNEL  i386

>Description:
Laptop with 82371AB powermanagement controller freezes in batteryuse
for a short time while probing floppy and CD-ROM without doing explicit 
access. This behaviour wasn't there in FreeBSD 3.1 and 4.0. Also
harddisk is pwoering down after a few seconds. Problem doesn't occure
in non-battery use except the harddisk seems t be powered down sometimes.
>How-To-Repeat:

>Fix:
compiling in and out of intpm, apm, smbus and pcm didn't help
>Release-Note:
>Audit-Trail:

From: Rupert Stitzinger <stitzinger_rupert@web.de>
To: freebsd-gnats-submit@FreeBSD.org, stitzinger_r@fag.de
Cc:  
Subject: Re: kern/25521: Laptop with FreeBSD4.2 freezes in battery-use randomly for short time
Date: Mon, 29 Apr 2002 10:14:10 +0200

 problem is still existing under FreeBSD 4.5. When CD-ROM is removed 
 (TEAC CD-224E) computer is running without stops.
 Problem also occures with line-power use, but not so often.
 Computer is freezing for 10s
 According to a Linux FAQ this can be due to a not correct electrical 
 implementation of the hardware (timing-problems). Also under DOS and 
 Linux the machine freezes, but only for ca. .5s. There is something 
 called "HeuristicPowerManagement" in the BIOS of this machine.
 
State-Changed-From-To: open->closed 
State-Changed-By: vs 
State-Changed-When: Fri Aug 26 09:07:20 GMT 2005 
State-Changed-Why:  
Closed: Submitter reported that this was a well-known hardware issue. 
While marking this PR as "analysed" or "suspended" might also seem, 
apropriate, I strongly doubt that it will ever be picked up (again). 

http://www.freebsd.org/cgi/query-pr.cgi?pr=25521 
>Unformatted:
