[Xen-users] Problem: IP-Config: Unable to set interface netmask (-22)

[xuehai zhang <hai@xxxxxxxxxxxxxxx>]

Hi all,
I tried to boot up a VM using two options (a) reading boot information from a config file (b) adding 
boot information directly to the command line. However, I got "IP-Config: Unable to set interface 
netmask (-22)" problem when using option (b). For (a), I don't have such problem. The boot 
information for both (a) and (b) is same.
Could you please let me know what I am missing for (b) or is it a bug?
BTW, my Xen version is 2.0-testing.
Thanks
Xuehai

(a)

$ cat vwconfig
kernel = "/boot/vmlinuz-2.6.11-xenU"
memory = 256
name = "ucvosg"
disk = [ "file:/tmp/vosg/vosg-gk-rootfs.img,sda1,w" , 
"file:/tmp/vosg/swap1.img,sda2,w" ]
nics=2
hostname="alex.cs.uchicago.edu"
ip="128.135.164.83"
netmask="255.255.255.192"
gateway="128.135.164.65"

root = "/dev/sda1 ro"
extra = ""

$ xm create vwconfig -c
(snipped)
xen_blk: Initialising virtual block device driver
xen_net: Initialising virtual ethernet driver.
NET: Registered protocol family 2
IP: routing cache hash table of 2048 buckets, 16Kbytes
TCP established hash table entries: 16384 (order: 5, 131072 bytes)
TCP bind hash table entries: 16384 (order: 4, 65536 bytes)
TCP: Hash tables configured (established 16384 bind 16384)
NET: Registered protocol family 1
NET: Registered protocol family 17
IP-Config: Complete:
      device=eth0, addr=128.135.164.83, mask=255.255.255.192, gw=128.135.164.65,
     host=alex, domain=, nis-domain=cs.uchicago.edu,
     bootserver=1.2.3.4, rootserver=1.2.3.4, rootpath=
(snipped)


(b)

$ xm create name=ucvosg memory=256 kernel='/boot/vmlinuz-2.6.11-xenU' 
disk='file:/tmp/vosg/vosg-gk-rootfs.img,sda1,w' disk='file:/tmp/vosg/swap1.img,sda2,w' nics=2 
hostname='alex.cs.uchicago.edu' netmask='255.255.254.192' ip='128.135.164.83' 
gateway='128.135.164.65' root='/dev/sda1 ro' -f /dev/null
(snipped)
xen_blk: Initialising virtual block device driver
xen_net: Initialising virtual ethernet driver.
NET: Registered protocol family 2
IP: routing cache hash table of 2048 buckets, 16Kbytes
TCP established hash table entries: 16384 (order: 5, 131072 bytes)
TCP bind hash table entries: 16384 (order: 4, 65536 bytes)
TCP: Hash tables configured (established 16384 bind 16384)
NET: Registered protocol family 1
NET: Registered protocol family 17
IP-Config: Unable to set interface netmask (-22).
(snipped)

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