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Date: Fri, 11 Oct 2013 08:47:33 GMT
From: Hugo Silva <hugo@barafranca.com>
To: freebsd-gnats-submit@FreeBSD.org
Subject: FreeBSD HVMPV domU networking does not work
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>Number:         182903
>Category:       kern
>Synopsis:       FreeBSD HVMPV domU networking does not work
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Oct 11 08:50:00 UTC 2013
>Closed-Date:    Mon May 05 03:24:45 UTC 2014
>Last-Modified:  Mon May 05 03:24:45 UTC 2014
>Originator:     Hugo Silva
>Release:        10.0-ALPHA5
>Organization:
>Environment:
FreeBSD iscsi 10.0-ALPHA5 FreeBSD 10.0-ALPHA5 #0 r256092: Sun Oct 6 22:30:23 UTC 2013 root@snap.freebsd.org:/usr/obj/usr/src/sys/sys/GENERIC amd64
>Description:
[duplicate of misc/182884, which was filed under the wrong category]

Under a NetBSD 6.1.2/amd64 and Xen 4.2.3, FreeBSD 10.0-ALPHA5 network is unstable/unusable.

Trying to ssh in to the virtual machine does not work.

On the first attempt, ssh from the client hung in connect() and at the FreeBSD domU console there was a panic[1].

On the dom0 console, the following was shown:
xvif3i0: packet size 1610 too big
xvif3i0: packet size 0 too big
xvif3i0: packet size 1544 too big


Disabling txcsum and rxcsum[2] makes the client hang in select() instead, but on the FreeBSD we still see "xn_txeof: WARNING: response is -1!", while simultaneously on the dom0 the following is printed to the system console: "xvif5i0: packet cross page boundary". The SSH connection is of course never established.
-----

[1] https://webmail.ami.org.pt/panic.jpg
[2] http://lists.freebsd.org/pipermail/freebsd-xen/2011-May/000940.html -- I saw & reported this same error on 9.x two years ago. It was fixed. Also, I run a 10-CURRENT snapshot from maybe half a year ago and everything works as expected there as well.
>How-To-Repeat:

>Fix:


>Release-Note:
>Audit-Trail:
State-Changed-From-To: open->closed 
State-Changed-By: linimon 
State-Changed-When: Mon May 5 03:23:39 UTC 2014 
State-Changed-Why:  
Duplicate of kern/182884. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=182903 
>Unformatted:
