xen-users
[Xen-users] Cannot create vbd / cannot create vif
Last week, I mentioned an error I was getting, as described below. I've
seen several mailing list posts describing a similar problem as far
back as December, 2005. This seems to be a problem plaguing all Xen 3
releases (to date).
3. After booting and then destroying approximately 25 domains, the
system will require a reboot before I can add further domains. The
error I receive is (approximately) '(vif) could not be connected'. If
I comment the 'vif=' line in the domain's configuration, I then
receive '(vbd) could not be connected'. Both messages were also
followed by "Hotplug scripts not working." I suspect if I restart
xenstored, this may be fixed, but I haven't yet had a chance to test
that.
Upon further review, I think my problem is happening once two domains
are started that have the same mac address assigned to their vif
devices. When a second domain comes online with the same MAC address as
an existing domain, Xen will not be able to create the vif, and exits --
but it does NOT properly clean up. After that point, Xen will refuse to
create even properly-configured domains. No domains may be created from
that point forward, until a reboot. I haven't yet found a workaround.
Once the system has encountered this problem, I see several variables
within xenstore-ls associated with each of the domains which failed to
'create'. I manually removed the associated variable trees with
xenstore-rm, but I still wasn't able to create a new domain, again with
the message "(vdb) could not be connected".
Please let me know if you need further information to reproduce the
error.. ;-)
Below is an excerpt from xenstore-ls showing information about a domain
(rjackson) which was never created.. (I attempted to start it a few
times, as you can see)
Thank you.
--
Eric Windisch
local = ""
domain = ""
0 = ""
cpu = ""
0 = ""
availability = "online"
1 = ""
availability = "online"
memory = ""
target = "1896448"
name = "Domain-0"
console = ""
limit = "1048576"
vm = "/vm/00000000-0000-0000-0000-000000000000"
domid = "0"
backend = ""
vbd = ""
23 = ""
2049 = ""
domain = "rjackson"
frontend = "/local/domain/23/device/vbd/2049"
dev = "sda1"
state = "5"
params = "mapper/XenDomains-rjackson"
mode = "w"
frontend-id = "23"
type = "phy"
2050 = ""
domain = "rjackson"
frontend = "/local/domain/23/device/vbd/2050"
dev = "sda2"
state = "1"
params = "mapper/Swap-rjackson"
mode = "w"
frontend-id = "23"
type = "phy"
24 = ""
2049 = ""
domain = "rjackson"
frontend = "/local/domain/24/device/vbd/2049"
dev = "sda1"
state = "5"
params = "mapper/XenDomains-rjackson"
mode = "w"
frontend-id = "24"
type = "phy"
2050 = ""
domain = "rjackson"
frontend = "/local/domain/24/device/vbd/2050"
dev = "sda2"
state = "1"
params = "mapper/Swap-rjackson"
mode = "w"
frontend-id = "24"
type = "phy"
25 = ""
2049 = ""
domain = "rjackson"
frontend = "/local/domain/25/device/vbd/2049"
dev = "sda1"
state = "5"
params = "mapper/XenDomains-rjackson"
mode = "w"
frontend-id = "25"
type = "phy"
2050 = ""
domain = "rjackson"
frontend = "/local/domain/25/device/vbd/2050"
dev = "sda2"
state = "1"
params = "mapper/Swap-rjackson"
mode = "w"
frontend-id = "25"
type = "phy"
_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users
| <Prev in Thread] |
Current Thread |
[Next in Thread> |
- [Xen-users] Cannot create vbd / cannot create vif,
Eric Windisch <=
|
|