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Date: Tue, 14 Dec 2010 15:03:45 GMT
From: Hien <phanquochien@gmail.com>
To: freebsd-gnats-submit@FreeBSD.org
Subject: [xen/ec2]disable checksum offloading on interface 'xn0' and enable it immediately caused network hang
X-Send-Pr-Version: www-3.1
X-GNATS-Notify:

>Number:         153150
>Category:       kern
>Synopsis:       [xen] xen/ec2: disable checksum offloading on interface 'xn0' and enable it immediately caused network hang
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    freebsd-xen
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Dec 14 15:10:10 UTC 2010
>Closed-Date:    
>Last-Modified:  Tue Dec 14 15:56:27 UTC 2010
>Originator:     Hien
>Release:        FreeBSD 9.0-CURRENT
>Organization:
>Environment:
FreeBSD ip-10-122-163-59 9.0-CURRENT FreeBSD 9.0-CURRENT #68: Sun Dec 12 03:52:29 UTC 2010     root@chch.daemonology.net:/usr/obj/i386.i386/usr/src/sys/XEN  i386
Running on Amazon EC2(ami-c01aeca9)!
>Description:
While I'm testing FreeBSD 9.0-CURRENT on EC2 ! When I try disable checksum offloading on interface 'xn0' and enable it immediately by below command it caused network hang:

ifconfig xn0 -txcsum
ifconfig xn0 txcsum

Only network problem, everything is running (I used cronjob to test it)


>How-To-Repeat:
Disable checksum offloading on interface 'xn0' and enable it immediately
>Fix:


>Release-Note:
>Audit-Trail:

From: Phan Quoc Hien <phanquochien@gmail.com>
To: FreeBSD-gnats-submit@freebsd.org, freebsd-java@freebsd.org
Cc:  
Subject: Re: java/153150: [xen/ec2]disable checksum offloading on interface
 'xn0' and enable it immediately caused network hang
Date: Tue, 14 Dec 2010 22:21:07 +0700

 --0016e6d7df84e198da0497605fa1
 Content-Type: text/plain; charset=ISO-8859-1
 
 Please help me correct category to 'kern' not 'java'! It's my *typo*! Sorry
 
 On Tue, Dec 14, 2010 at 10:10 PM, <FreeBSD-gnats-submit@freebsd.org> wrote:
 
 > Thank you very much for your problem report.
 > It has the internal identification `java/153150'.
 > The individual assigned to look at your
 > report is: freebsd-java.
 >
 > You can access the state of your problem report at any time
 > via this link:
 >
 > http://www.freebsd.org/cgi/query-pr.cgi?pr=153150
 >
 > >Category:       java
 > >Responsible:    freebsd-java
 > >Synopsis:       [xen/ec2]disable checksum offloading on interface 'xn0'
 > and enable it immediately caused network hang
 > >Arrival-Date:   Tue Dec 14 15:10:10 UTC 2010
 >
 
 
 
 -- 
 Best regards,
 Mr.Hien
 E-mail: phanquochien@gmail.com
 Website: www.mrhien.info
 
 --0016e6d7df84e198da0497605fa1
 Content-Type: text/html; charset=ISO-8859-1
 Content-Transfer-Encoding: quoted-printable
 
 Please help me correct category to &#39;kern&#39; not &#39;java&#39;! It&#3=
 9;s my *typo*! Sorry<br><br><div class=3D"gmail_quote">On Tue, Dec 14, 2010=
  at 10:10 PM,  <span dir=3D"ltr">&lt;<a href=3D"mailto:FreeBSD-gnats-submit=
 @freebsd.org">FreeBSD-gnats-submit@freebsd.org</a>&gt;</span> wrote:<br>
 
 <blockquote class=3D"gmail_quote" style=3D"margin: 0pt 0pt 0pt 0.8ex; borde=
 r-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">Thank you very mu=
 ch for your problem report.<br>
 It has the internal identification `java/153150&#39;.<br>
 The individual assigned to look at your<br>
 report is: freebsd-java.<br>
 <br>
 You can access the state of your problem report at any time<br>
 via this link:<br>
 <br>
 <a href=3D"http://www.freebsd.org/cgi/query-pr.cgi?pr=3D153150" target=3D"_=
 blank">http://www.freebsd.org/cgi/query-pr.cgi?pr=3D153150</a><br>
 <br>
 &gt;Category: =A0 =A0 =A0 java<br>
 &gt;Responsible: =A0 =A0freebsd-java<br>
 &gt;Synopsis: =A0 =A0 =A0 [xen/ec2]disable checksum offloading on interface=
  &#39;xn0&#39; and enable it immediately caused network hang<br>
 &gt;Arrival-Date: =A0 Tue Dec 14 15:10:10 UTC 2010<br>
 </blockquote></div><br><br clear=3D"all"><br>-- <br><div><font color=3D"#88=
 8888">Best regards,</font><br>Mr.Hien</div>
 <div>E-mail: <a href=3D"mailto:phanquochien@gmail.com" target=3D"_blank">ph=
 anquochien@gmail.com</a><br>Website: <a href=3D"http://www.mrhien.info" tar=
 get=3D"_blank">www.mrhien.info</a></div><br>
 
 --0016e6d7df84e198da0497605fa1--
Responsible-Changed-From-To: freebsd-java->freebsd-xen 
Responsible-Changed-By: linimon 
Responsible-Changed-When: Tue Dec 14 15:55:53 UTC 2010 
Responsible-Changed-Why:  
Reclassify at submitter request. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=153150 
>Unformatted:
