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Date: Fri, 1 Jul 2011 06:19:48 GMT
From: Derek Schaeffer <terrawattshock@gmail.com>
To: freebsd-gnats-submit@FreeBSD.org
Subject: ROOT MOUNT ERROR (caused by AHCI module)
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>Number:         158552
>Category:       amd64
>Synopsis:       ROOT MOUNT ERROR (caused by AHCI module)
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-amd64
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Jul 01 06:20:00 UTC 2011
>Closed-Date:    Fri Jul 01 20:50:59 UTC 2011
>Last-Modified:  Fri Jul 01 20:50:59 UTC 2011
>Originator:     Derek Schaeffer
>Release:        8.2-RC1
>Organization:
University Of Louisville
>Environment:
[X@pcbsd-8686 /usr/home/X]$ uname -a
FreeBSD pcbsd-8686 8.2-RC1 FreeBSD 8.2-RC1 #4: Mon Dec 27 12:25:57 PST 2010     root@build8x64.pcbsd.org:/usr/obj/usr/pcbsd-build82/fbsd-source/8.2/sys/PCBSD  amd64

>Description:
FreeBSD gives "ROOT MOUNT ERROR" when the kernel is loading modules at startup.  This is regardless if the installation has been dual-booted or not.  The problem appears to be the AHCI module.

Hardware:
Intel i7 980x processor
MSI Big Bang-XPower motherboard
XFX HD-485X-ZNFC Radeon HD 4850 video card
DDR3 2000 ram (16GB)
>How-To-Repeat:
FreeBSD does not have AHCI enabled by default, however, PCBSD does.  

In the loader.conf file,
 ahci_load="YES"
will cause the problem to occur. 
>Fix:
In the loader.conf file,
 ahci_load="NO"
allows normal startup.  

The problem was addressed in the thread: http://forums.freebsd.org/showthread.php?t=20724

>Release-Note:
>Audit-Trail:

From: Andriy Gapon <avg@FreeBSD.org>
To: bug-followup@FreeBSD.org, terrawattshock@gmail.com
Cc:  
Subject: Re: amd64/158552: ROOT MOUNT ERROR (caused by AHCI module)
Date: Fri, 01 Jul 2011 16:03:50 +0300

 That forum thread is a mess, it starts stating one problem and ends with something
 that looks totally different.  Please clearly state your problem in the PR.
 
 BTW, there was no reason to assign this PR to category amd64, it's a 'kern' problem.
 -- 
 Andriy Gapon
State-Changed-From-To: open->closed 
State-Changed-By: linimon 
State-Changed-When: Fri Jul 1 20:50:38 UTC 2011 
State-Changed-Why:  
see kern/158569. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=158552 
>Unformatted:
