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Date: Thu, 28 Jul 2005 18:58:24 -0700
From: "Gary W. Swearingen" <garys@opusnet.com>
Reply-To: garys@opusnet.com
To: FreeBSD-gnats-submit@freebsd.org
Subject: ata(4) manpage disagrees with tuning(7) manpage about hw.ata.wc
X-GNATS-Notify:

>Number:         84264
>Category:       docs
>Synopsis:       [patch] ata(4) manpage disagrees with tuning(7) manpage about hw.ata.wc
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    keramida
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          doc-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Jul 29 02:40:12 GMT 2005
>Closed-Date:    Fri Jun 23 18:42:21 GMT 2006
>Last-Modified:  Fri Jun 23 18:42:21 GMT 2006
>Originator:     Gary W. Swearingen
>Release:        FreeBSD 5.4-RELEASE i386
>Organization:
none
>Environment:
n/a
>Description:
Manpage tuning(7) says that write caching can cause data loss on power
failures OR CRASHES, while ata(4) only mentions power failures.

>How-To-Repeat:
n/a

>Fix:
Assume the worst (and trust Dillon, IIRC) and fix ata manpage:

--- /pr/work/ata..orig.4	Wed Jul 27 22:30:35 2005
+++ /pr/work/ata.4	Wed Jul 27 22:30:49 2005
@@ -90,7 +90,7 @@
 .It Va hw.ata.wc
 set to 1 to enable Write Caching, 0 to disable (default is enabled).
 .Em WARNING :
-can cause data loss on power failures.
+can cause data loss on power failures and crashes.
 .El
 .Sh DESCRIPTION
 The
>Release-Note:
>Audit-Trail:
State-Changed-From-To: open->patched 
State-Changed-By: keramida 
State-Changed-When: Fri Jul 29 10:47:50 GMT 2005 
State-Changed-Why:  
Committed.  Thanks.  I'll merge the changes to RELENG_x branches 
in a few days. 


Responsible-Changed-From-To: freebsd-doc->keramida 
Responsible-Changed-By: keramida 
Responsible-Changed-When: Fri Jul 29 10:47:50 GMT 2005 
Responsible-Changed-Why:  
MFC reminder. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=84264 
State-Changed-From-To: patched->closed 
State-Changed-By: keramida 
State-Changed-When: Fri Jun 23 18:41:30 UTC 2006 
State-Changed-Why:  
This has been MFC'd by brueffer in revision 1.52.2.4 of ata.4 

# revision 1.52.2.4 
# date: 2006/01/27 15:58:01;  author: brueffer;  state: Exp;  lines: +5 -3 
# MFC: rev. 1.53, 1.60, 1.61 
#  
# - hw.ata.wc can cause data loss on crashes too.  This brings the 
#   description of the hw.ata.wc in sync with tuning(7) 
# - Via VT8251 support. 
# - Support for Marvell chipsets. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=84264 
>Unformatted:
