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Message-Id: <201010241103.o9OB3Yob021431@www.freebsd.org>
Date: Sun, 24 Oct 2010 11:03:34 GMT
From: Martin Birgmeier <martin.birgmeier@aon.at>
To: freebsd-gnats-submit@FreeBSD.org
Subject: NFS mount via IPv6 leads to hang on client with "ipfw: pullup failed"
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>Number:         151681
>Category:       kern
>Synopsis:       [nfs] NFS mount via IPv6 leads to hang on client with "ipfw: pullup failed"
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-net
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Oct 24 11:10:07 UTC 2010
>Closed-Date:    
>Last-Modified:  Sun Oct 24 11:19:20 UTC 2010
>Originator:     Martin Birgmeier
>Release:        client: 7.3, server: 8.1
>Organization:
MBi at home
>Environment:
FreeBSD gandalf.xyzzy 7.3-RELEASE-p3 FreeBSD 7.3-RELEASE-p3 #2: Sat Oct 16 08:55:47 CEST 2010     root@gandalf.xyzzy:/d/14.1/OBJ/FreeBSD/RELENG_7_3/src/sys/XYZZY  i386
>Description:
Scenario:
- The client runs RELENG_7_3
- The server runs RELENG_8_1_0_RELEASE
- All machines are fully configured for dual IPv4/IPv6 operation
- The server exports zfs volumes both via IPv4 and IPv6
- The client mounts from the server via IPv6

Error:
- After only a few operations, the client hangs, with messages "ipfw: pullup failed" on the console

Resolution:
- The hang can only be resolved by a reboot of the client.

This hang does not occur if the mount is done via IPv4.

>How-To-Repeat:
Repeat the scenario above, and do NFS operations from the client to the server.

>Fix:


>Release-Note:
>Audit-Trail:
Responsible-Changed-From-To: freebsd-bugs->freebsd-net 
Responsible-Changed-By: linimon 
Responsible-Changed-When: Sun Oct 24 11:18:57 UTC 2010 
Responsible-Changed-Why:  
Sounds like something in the networking layer. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=151681 
>Unformatted:
