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Message-Id: <201304051707.r35H7sjp082717@red.freebsd.org>
Date: Fri, 5 Apr 2013 17:07:54 GMT
From: Jos Garca Juanino <jjuanino@gmail.com>
To: freebsd-gnats-submit@FreeBSD.org
Subject: FreeBSD panics after get full filesystem with ufs snapshot
X-Send-Pr-Version: www-3.1
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>Number:         177658
>Category:       kern
>Synopsis:       [ufs] FreeBSD panics after get full filesystem with ufs snapshot
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-fs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Apr 05 17:10:00 UTC 2013
>Closed-Date:    
>Last-Modified:  Sat Apr 06 23:06:00 UTC 2013
>Originator:     Jos Garca Juanino
>Release:        FreeBSD 9.1 RELEASE
>Organization:
>Environment:
FreeBSD golem.boecillo.eemea.ericsson.se 9.1-RELEASE FreeBSD 9.1-RELEASE #0 r243825: Tue Dec  4 09:23:10 UTC 2012     root@farrell.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  amd64

>Description:
Reproducible panic: FreeBSD panics after get full filesystem with a ufs
snapshot.

kernel and userland is standard, with no tweaks, only in /boot/loader.conf:

geom_concat_load="YES"

(the affected filesystem is gconcated of several partitions).

In sysctl.conf, I have:

kern.ipc.somaxconn=256
kern.maxfiles=25000


>How-To-Repeat:
In a ufs filesystem with soft updates and some snapshot taken previously,
do some heavy write activity.  The snapshot will grow a lot; if that
snapshot fill up the filesystem you will get a panic.  Full backtrace in
http://pastebin.com/MZP2Femp .

This PR is pretty similar to kern/162362.


>Fix:


>Release-Note:
>Audit-Trail:

From: =?ISO-8859-1?Q?Jos=E9_Garc=EDa_Juanino?= <jjuanino@gmail.com>
To: bug-followup@FreeBSD.org, jjuanino@gmail.com
Cc:  
Subject: Re: kern/177658: FreeBSD panics after get full filesystem with ufs snapshot
Date: Fri, 5 Apr 2013 23:22:20 +0200

 --20cf301d3a64aa296104d9a3aeb2
 Content-Type: text/plain; charset=ISO-8859-1
 
 There is a typo  in the link: it should be
 http://pastebin.com/MZP2Femp<http://pastebin.com/MZP2Femp.>
 
 --20cf301d3a64aa296104d9a3aeb2--

From: =?ISO-8859-1?Q?Jos=E9_Garc=EDa_Juanino?= <jjuanino@gmail.com>
To: bug-followup@freebsd.org, =?ISO-8859-1?Q?Jos=E9_Garc=EDa_Juanino?= <jjuanino@gmail.com>
Cc:  
Subject: Re: kern/177658: FreeBSD panics after get full filesystem with ufs snapshot
Date: Fri, 5 Apr 2013 23:35:31 +0200

 --90e6ba6e8b50d4f08004d9a3dd79
 Content-Type: text/plain; charset=ISO-8859-1
 Content-Transfer-Encoding: quoted-printable
 
 Sorry, I am not very smart today: take out the final point in the link:
 
 http://pastebin.com/MZP2Femp
 
 --90e6ba6e8b50d4f08004d9a3dd79--
Responsible-Changed-From-To: freebsd-bugs->freebsd-fs 
Responsible-Changed-By: linimon 
Responsible-Changed-When: Sat Apr 6 23:05:32 UTC 2013 
Responsible-Changed-Why:  
Over to maintainer(s). 

http://www.freebsd.org/cgi/query-pr.cgi?pr=177658 
>Unformatted:
