Re: Difficulties with netbsd on xen 3

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Thu, May 18, 2006 at 10:18:11PM -0400, Chris Dukes wrote:
> 
> I'm trying to get netbsd HEAD domU running under xen 3 with a linux dom0.
> I think I have a correct config file for 'xm create', but it fails to start.
> 
> >From the xend.log
> [2006-05-18 21:58:15 xend.XendDomainInfo] DEBUG (XendDomainInfo:1164) 
> XendDomainInfo.construct: None 0
> [2006-05-18 21:58:15 xend.XendDomainInfo] DEBUG (XendDomainInfo:1196) 
> XendDomainInfo.initDomain: 7 1.0
> [2006-05-18 21:58:15 xend] DEBUG (balloon:126) Balloon: free 3513; need 257; 
> done.
> [2006-05-18 21:58:15 xend] INFO (image:135) buildDomain os=linux dom=7 vcpus=1
> [2006-05-18 21:58:15 xend] DEBUG (image:173) dom            = 7
> [2006-05-18 21:58:15 xend] DEBUG (image:174) image          = 
> /vserver/dists/ftp.netbsd.org/pub/NetBSD/NetBSD-daily/HEAD/200605180000Z/i386/binary/kernel/netbsd-INSTALL_XEN3_U
> [2006-05-18 21:58:15 xend] DEBUG (image:175) store_evtchn   = 1
> [2006-05-18 21:58:15 xend] DEBUG (image:176) console_evtchn = 2
> [2006-05-18 21:58:15 xend] DEBUG (image:177) cmdline        =
> [2006-05-18 21:58:15 xend] DEBUG (image:178) ramdisk        =
> [2006-05-18 21:58:15 xend] DEBUG (image:179) vcpus          = 1
> [2006-05-18 21:58:15 xend] DEBUG (image:180) features       =
> [2006-05-18 21:58:16 xend] DEBUG (DevController:103) DevController: writing 
> {'virtual-device': '768', 'backend-id': '0', 'state': '1', 'backend': 
> '/local/domain/0/backend/vbd/7/768'} to /local/domain/7/device/vbd/768.
> [2006-05-18 21:58:16 xend] DEBUG (DevController:105) DevController: writing 
> {'domain': 'netbsd3.0', 'frontend': '/local/domain/7/device/vbd/768', 'dev': 
> 'hda',
> 'state': '1', 'params': '/vserver/images/nbsd01.img', 'mode': 'w', 
> 'frontend-id': '7', 'type': 'file'} to /local/domain/0/backend/vbd/7/768.
> [2006-05-18 21:58:16 xend.XendDomainInfo] DEBUG (XendDomainInfo:671) Storing 
> VM
> details: {'ssidref': '0', 'uuid': '37553d0f-6936-c486-b8cd-3dd0c1191948', 
> 'on_reboot': 'restart', 'start_time': '1148003896.14', 'on_poweroff': 
> 'destroy', 'name': 'netbsd3.0', 'vcpus': '1', 'vcpu_avail': '1', 'memory': 
> '256', 'on_crash': 'restart', 'image': '(linux (kernel 
> /vserver/dists/ftp.netbsd.org/pub/NetBSD/NetBSD-daily/HEAD/200605180000Z/i386/binary/kernel/netbsd-INSTALL_XEN3_U))',
>  'maxmem': '256'}
> [2006-05-18 21:58:16 xend.XendDomainInfo] DEBUG (XendDomainInfo:696) Storing 
> domain details: {'console/ring-ref': '927244', 'console/port': '2', 'name': 
> 'netbsd3.0', 'console/limit': '1048576', 'vm': 
> '/vm/37553d0f-6936-c486-b8cd-3dd0c1191948', 'domid': '7', 
> 'cpu/0/availability': 'online', 'memory/target': '262144', 'store/ring-ref': 
> '927245', 'store/port': '1'}
> [2006-05-18 21:58:16 xend.XendDomainInfo] DEBUG (XendDomainInfo:877) 
> XendDomainInfo.handleShutdownWatch
> [2006-05-18 21:58:16 xend.XendDomainInfo] WARNING (XendDomainInfo:819) Domain 
> has crashed: name=netbsd3.0 id=7.
> [2006-05-18 21:58:16 xend.XendDomainInfo] ERROR (XendDomainInfo:1467) VM 
> netbsd3.0 restarting too fast (0.610915 seconds since the last restart).  
> Refusing to restart to avoid loops.
> [2006-05-18 21:58:16 xend.XendDomainInfo] DEBUG (XendDomainInfo:1327) 
> XendDomainInfo.destroy: domid=7
> [2006-05-18 21:58:16 xend.XendDomainInfo] DEBUG (XendDomainInfo:1335) 
> XendDomainInfo.destroyDomain(7)


Did you use 'xm create' or 'xm create -c' ? Maybe we can see something on
console ...

> 
> The config
> 
> #kernel = 
> "/vserver/dists/netbsd/HEAD/i386/binary/kernel/netbsd-INSTALL_XEN3_U"
> kernel="/vserver/dists/ftp.netbsd.org/pub/NetBSD/NetBSD-daily/HEAD/200605180000Z/i386/binary/kernel/netbsd-INSTALL_XEN3_U"
> #ramdisk = "/vserver/dists/netbsd/HEAD/i386/installation/floppy/boot-big.fs"
> memory = 256
> name = "netbsd3.0"
> #disk = [ 'phy:/dev/vol1/netbsd3.0,0x3,w' ]
> disk = [ 'file:/vserver/images/nbsd01.img,hda,w' ]
> #disk = [ 
> 'file:/vserver/dists/netbsd/HEAD/i386/installation/floppy/boot-big.fs,hda,w' ]
> 
> # Replace with your IP info
> #ip = "a.b.c.d"
> #netmask = "255.255.x.x"
> #gateway = "a.b.c.d"
> #serial='pty'

I used:
#kernel = "/vserver/dists/netbsd/HEAD/i386/binary/kernel/netbsd-INSTALL_XEN3_U" 
kernel="/home/bouyer/netbsd-INSTALL_XEN3_U"
#ramdisk = "/vserver/dists/netbsd/HEAD/i386/installation/floppy/boot-big.fs"
memory = 128
name = "netbsd3.0"
#disk = [ 'phy:/dev/vol1/netbsd3.0,0x3,w' ]
disk = [ 'file:/tmp/file,hda,w' ]
#disk = [ 
'file:/vserver/dists/netbsd/HEAD/i386/installation/floppy/boot-big.fs,hda,w' ]

# Replace with your IP info
#ip = "a.b.c.d"
#netmask = "255.255.x.x"
#gateway = "a.b.c.d"
#serial='pty'

The kernel is the same as your, downloaded from ftp.netbsd.org (assuming
the path in your config matches the path on ftp). I can't test with 256M,
I don't have enouth free ram.



> 
> 
> 
> Linux is Debian unstable.  Hypervisor and utils are
> 3.0.2+hg9681-1
> 
> Using
> linux-image-xen-686 2.6.16-12

Hypervisor and utils are 3.0.2-2 from Xen, dom0 kernel is 2.6.16-xen (also
from xen)

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