NetBSD Problem Report #44743

From www@NetBSD.org  Sat Mar 19 16:12:20 2011
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Date: Sat, 19 Mar 2011 16:12:18 +0000 (UTC)
From: bbartlomiej@gmail.com
Reply-To: bbartlomiej@gmail.com
To: gnats-bugs@NetBSD.org
Subject: Network doesn't work on DomU NetBSD 5.1 which is run on Debian Squeeze Dom0 (Xen 4)
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>Number:         44743
>Category:       port-xen
>Synopsis:       Network doesn't work on DomU NetBSD 5.1 which is run on Debian Squeeze Dom0 (Xen 4)
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    port-xen-maintainer
>State:          closed
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Mar 19 16:15:00 +0000 2011
>Closed-Date:    Sat Mar 19 18:09:06 +0000 2011
>Last-Modified:  Sat Mar 19 18:09:06 +0000 2011
>Originator:     Bartek Krawczyk
>Release:        5.1
>Organization:
>Environment:
NetBSD 5.1 netbsd-INSTALL_XEN3PAE_DOMU.gz
>Description:
Hi!
I've upgraded a Xen dom0 server from debian lenny (linux 2.6.26-i386) to squeeze (linux 2.6.32-5 with pvops, Xen 4) and can't netinstall a NetBSD 5.1 DomU. The network under netbsd domu just isn't working (other Linux DomUs work just fine). The vif on dom0 is created correctly (through network-bridge script from /etc/xen), the xennet0 is recognized in the netbsd-INSTALL_XEN3PAE_DOMU.gz, I can add an IP address to it and ping it (and 127.0.0.1) but nothing more. I've read that there was some problems with flip/copy mode on Xen 4 but it was fixed in 5.1 (according to CHANGELOG).

# ifconfig xennet0
xennet0: flags=8863<UP,BROADCAST,NOTRAILERS,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        capabilities=2800<TCP4CSUM_Tx,UDP4CSUM_Tx>
        enabled=0
        address: 00:16:3e:28:7c:a1
        inet 88.199.21.14 netmask 0xffffffe0 broadcast 88.199.21.31
        inet6 fe80::216:3eff:fe28:7ca1%xennet0 prefixlen 64 scopeid 0x1
dmesg:
xennet0 at xenbus0 id 0: Xen Virtual Network Interface
xennet0: MAC address 00:16:3e:28:7c:a1
xennet0: using event channel 7

xen:/etc/xen/scripts# brctl show
bridge name	bridge id		STP enabled	interfaces
eth0		8000.001422095e63	no		peth0
							vif1.0
							vif2.0
							vif3.0
							vif4.0
							vif5.0
							vif7.0
eth1		8000.001422095e64	no		peth1
							vif4.1

there's also a warning in the netbsd dmesg:
WARNING: clock gained 132 days
WARNING: CHECK AND RESET THE DATE!
(and the timezone can't be set from the installer, it's UTC where it should be UTC+1)

xen:/etc/xen/scripts# xm network-list 7
Idx BE     MAC Addr.     handle state evt-ch tx-/rx-ring-ref BE-path
0   0  00:16:3e:28:7c:a1    0     4      7     509  /508     /local/domain/0/backend/vif/7/0  

xen:/etc/xen/scripts# xm network-list 7 -l
(0
    ((mac 00:16:3e:28:7c:a1)
        (handle 0)
        (protocol x86_32-abi)
        (backend-id 0)
        (state 4)
        (backend /local/domain/0/backend/vif/7/0)
        (tx-ring-ref 509)
        (rx-ring-ref 508)
        (feature-rx-notify 1)
        (event-channel 7)
    )
)

Thanks in advance for any help.

>How-To-Repeat:
Try to netinstall a NetBSD 5.1 DomU on Debian Squeeze (linux 2.6.32-5 with pvops, Xen 4).
>Fix:

>Release-Note:

>Audit-Trail:
From: Manuel Bouyer <bouyer@antioche.eu.org>
To: gnats-bugs@NetBSD.org
Cc: port-xen-maintainer@NetBSD.org, gnats-admin@NetBSD.org,
        netbsd-bugs@NetBSD.org
Subject: Re: port-xen/44743: Network doesn't work on DomU NetBSD 5.1 which is
 run on Debian Squeeze Dom0 (Xen 4)
Date: Sat, 19 Mar 2011 17:43:18 +0100

 On Sat, Mar 19, 2011 at 04:15:00PM +0000, bbartlomiej@gmail.com wrote:
 > >Description:
 > Hi!
 > I've upgraded a Xen dom0 server from debian lenny (linux 2.6.26-i386) to squeeze (linux 2.6.32-5 with pvops, Xen 4) and can't netinstall a NetBSD 5.1 DomU. The network under netbsd domu just isn't working (other Linux DomUs work just fine). The vif on dom0 is created correctly (through network-bridge script from /etc/xen), the xennet0 is recognized in the netbsd-INSTALL_XEN3PAE_DOMU.gz, I can add an IP address to it and ping it (and 127.0.0.1) but nothing more. I've read that there was some problems with flip/copy mode on Xen 4 but it was fixed in 5.1 (according to CHANGELOG).

 No, copy mode support was added to the backend (dom0) before 5.1, but
 it was added to the frontend (domU) after 5.1 was released. So you need
 something newer from the netbsd-5 branch.

 -- 
 Manuel Bouyer <bouyer@antioche.eu.org>
      NetBSD: 26 ans d'experience feront toujours la difference
 --

From: Bartek Krawczyk <bbartlomiej@gmail.com>
To: gnats-bugs@NetBSD.org
Cc: 
Subject: Re: port-xen/44743: Network doesn't work on DomU NetBSD 5.1 which
 is run on Debian Squeeze Dom0 (Xen 4)
Date: Sat, 19 Mar 2011 18:48:29 +0100

 On 19.03.2011 17:45, Manuel Bouyer wrote:
 > The following reply was made to PR port-xen/44743; it has been noted by GNATS.
 >  No, copy mode support was added to the backend (dom0) before 5.1, but
 >  it was added to the frontend (domU) after 5.1 was released. So you need
 >  something newer from the netbsd-5 branch.

 I must have got mixed up with kernels because I was sure I had checked
 it yesterday and it was the same.

 Now the kernel from
 http://nyftp.netbsd.org/pub/NetBSD-daily/HEAD/201103171400Z/i386 works
 just fine.

 Thanks.
 -- 
 Bartek Krawczyk
 JID: bbartlomiej@jabster.pl
 GG: 2094683

State-Changed-From-To: open->closed
State-Changed-By: bouyer@NetBSD.org
State-Changed-When: Sat, 19 Mar 2011 18:09:06 +0000
State-Changed-Why:
copy-mode was added post-5.1 to the frontend, so a newer kernel is needed.


>Unformatted:

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