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Date: Fri, 9 Sep 2011 15:59:34 GMT
From: Ighor Poteryakhin <ighor@ighor.ru>
To: freebsd-gnats-submit@FreeBSD.org
Subject: Boot on zfs root with degraded raidz2
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>Number:         160591
>Category:       kern
>Synopsis:       [zfs] Fail to boot on zfs root with degraded raidz2 [regression]
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-fs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Sep 09 16:00:23 UTC 2011
>Closed-Date:    
>Last-Modified:  Wed Oct  5 10:50:07 UTC 2011
>Originator:     Ighor Poteryakhin
>Release:        8.2-STABLE
>Organization:
>Environment:
FreeBSD real-big-one.office.furgon-center.ru 8.2-STABLE FreeBSD 8.2-STABLE #0: Fri Sep  2 11:02:24 MSD 2011     ighor@real-big-one.office.furgon-center.ru:/usr/obj/usr/src/sys/CUSTOM  amd64

>Description:
System was updated to 8.2-STABLE from 8.2-RELEASE and has ZFS RAIDZ2
with 6 hdds (500Gb each). Total capacity was (6-2)*500, approx 2T. Each
hdd is conencted to one the same ICH10 controller, visible to BIOS and
works stable. When one(any) HDD is removed system fails to boot from
degraded ZFS RAIDZ2.
>How-To-Repeat:
Remove one of 6 HDDs from RAIDZ2 on 8.2-STABLE - system will not boot
from degraded RAIDZ2.
>Fix:
8.2-RELEASE works fine

>Release-Note:
>Audit-Trail:
Responsible-Changed-From-To: freebsd-bugs->freebsd-fs 
Responsible-Changed-By: linimon 
Responsible-Changed-When: Mon Sep 12 01:31:33 UTC 2011 
Responsible-Changed-Why:  
reclassify and assign. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=160591 

From: Edho Arief <edho@myconan.net>
To: bug-followup@freebsd.org, ighor@ighor.ru
Cc:  
Subject: Re: kern/160591: [zfs] Fail to boot on zfs root with degraded raidz2 [regression]
Date: Wed, 5 Oct 2011 17:10:25 +0700

 Also fail on 9.0-BETA3, including when using bootloader set (pmbr,
 gptzfsboot, and zfsloader) from 9.0-BETA3 on 8.2-RELEASE. I had to use
 9.0-BETA3 set since my root pool is 4K but it doesn't boot anymore
 when one of the disk failed (at least after waiting the spinning
 cursor for one hour and still spinning).
>Unformatted:
