Re: Xen 3.3/NetBSD 5.1 DOM0: bridge not working if vcpus>1

["Cherry G. Mathew" <cherry.g.mathew%gmail.com@localhost>]

Hi Ron,

On 7 November 2011 22:03, Ron McDowell <rcm%fuzzwad.org@localhost> wrote:
> Hi, port-xen.
>
> I originally posted this on Xen-users, then on NetBSD-users, but nobody
> there had an answer...
>
> -------- Original Message --------
>
>
> Trying to bring up xen 3.3 on a Dell T110 [quad XEON, 8GB RAM] running
> NetBSD 5.1 amd64 DOM0.  I installed the OS from CD, then xentools33 and
> xenkernel33 with pkg_add, and I got DOM0 working...
>
> [root@voodoo(NetBSD)]> uname -a
> NetBSD voodoo 5.1 NetBSD 5.1 (XEN3_DOM0) #0: Sat Nov  6 13:19:24 UTC 2010
>  builds%b6.netbsd.org@localhost:/home/builds/ab/netbsd-5-1-RELEASE/amd64/201011061943Z-obj/home/builds/ab/netbsd-5-1-RELEASE/src/sys/arch/amd64/compile/XEN3_DOM0
> amd64
> [root@voodoo(NetBSD)]> xm list
> Name                                        ID   Mem VCPUs      State
> Time(s)
> Domain-0                                     0  1024     1      r-----
> 25.6
> [root@voodoo(NetBSD)]> ls -l /dev/xen*
> crw-------  1 root  wheel  143, 0 Oct 11 14:19 /dev/xencons
> crw-------  1 root  wheel  141, 0 Oct 11 14:19 /dev/xenevt
> [root@voodoo(NetBSD)]> ls -l /etc/rc.d/xen*
> -r-xr-xr-x  1 root  wheel   293 Oct 11 15:28 /etc/rc.d/xenbackendd
> -r-xr-xr-x  1 root  wheel   629 Oct 11 15:28 /etc/rc.d/xend
> -r-xr-xr-x  1 root  wheel  3607 Oct 11 15:28 /etc/rc.d/xendomains
>
>
> I created a big disk image file with dd...
>
> [root@voodoo(NetBSD)]> ls -l /Xen/Disks/juju0000.img
> -rw-r--r--  1 root  wheel  966367641600 Oct 11 22:40 /Xen/Disks/juju0000.img
>
>
> And have my bridge set up...
>
> [root@voodoo(NetBSD)]> cat /etc/ifconfig.bridge0
> create
> !brconfig $int add bge0 up
> [root@voodoo(NetBSD)]> ifconfig bridge0
> bridge0: flags=41<UP,RUNNING> mtu 1500
>
> I want to use HVM for transparency [over speed]... but if I use this config
> file [basic HVM with disk/memory/mac changes]...
>
> kernel = "/usr/pkg/lib/xen/boot/hvmloader"
> builder = "hvm"
> memory = 4096
> name = "juju"
> vcpus = 4
> vif = [
>      'mac=00:16:3e:XX:XX:XX, type=ioemu, bridge=bridge0'
>  ]
> disk = [
>      'file:/Xen/Disks0/juju0000.img,hda,w',
>      'file:/Xen/Isos/FBSD82amd64.iso,hdd:cdrom,r'
>  ]
> device_model = '/usr/pkg/libexec/qemu-dm'
> boot="c"
> vnc=1
> vnclisten="0.0.0.0"
> vncdisplay=1
> vncpasswd="XXXXXX"
>
>
> when I create it:
>
> [root@voodoo(NetBSD)]> xm create -c /Xen/Machines/juju.cnf
> Using config file "/Xen/Machines/juju.cnf".
> Started domain juju
> [root@voodoo(NetBSD)]> xm list
> Name                                        ID   Mem VCPUs      State
> Time(s)
> Domain-0                                     0   256     1     r-----
>  222.0
> juju                                         1  4096     1     -b----
>  155.2
>
> ...it comes up and, in a VNC window, I can watch it boot, find and configure
> /dev/re0, but I can't ping DOMU from anywhere and can't ping anywhere from
> DOMU.
>
> Shutting down DOMU, changing vcpus to 1 [or commenting it out completely],
> then restarting DOMU... everything works fine. What am I missing?  Thanks.
>

Do you have any logs from the MP boot ?

relevant ones would be /var/log/qemu-dm-xx.log and /var/log/xen/xend.log

Cheers,

-- 
~Cherry