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xen-devel
Re: [Xen-users] Re: [Xen-devel] tap:qcow causes dom-U to hang in 3.0.3
Ewan Mellor wrote:
Could we see your /var/log/xen/* and the output of xenstore-ls?
I suspect this part of the xenstore-ls may be significant:
error = ""
backend = ""
tap = ""
1 = ""
2049 = ""
error = "2 getting info"
Is there somewhere I can get more info on the cause of the error? Also,
given that the error seems 'sticky', in that 'xm shutdown' and 'xm
destroy' don't appear to be able to get rid of the tap device, how do I
identify where the tapdisk (or whatever) process is stuck?
Thanks for any advice
Regards
Roland
Here's the full xenstore-ls after the dom-U hangs and before I've done
anything to try to shut it down:
[root@dom0 ~]# xenstore-ls
tool = ""
xenstored = ""
vm = ""
00000000-0000-0000-0000-000000000000 = ""
shadow_memory = "0"
uuid = "00000000-0000-0000-0000-000000000000"
on_reboot = "restart"
on_poweroff = "destroy"
name = "Domain-0"
xend = ""
restart_count = "0"
vcpus = "2"
vcpu_avail = "3"
memory = "1023"
on_crash = "restart"
maxmem = "1023"
00000000-0000-0000-0000-0000ec292018 = ""
image = "(linux (kernel /boot/vmlinuz-2.6.16.29-xen) (ramdisk
/boot/initrd-2.6.16.29-xen.img) (..."
ostype = "linux"
kernel = "/boot/vmlinuz-2.6.16.29-xen"
cmdline = " root=/dev/sda1 ro 4"
ramdisk = "/boot/initrd-2.6.16.29-xen.img"
shadow_memory = "0"
uuid = "00000000-0000-0000-0000-0000ec292018"
on_reboot = "restart"
start_time = "1163078366.42"
on_poweroff = "destroy"
name = "dom_92018"
xend = ""
restart_count = "0"
vcpus = "1"
vcpu_avail = "1"
memory = "1700"
on_crash = "restart"
maxmem = "1700"
local = ""
domain = ""
0 = ""
cpu = ""
0 = ""
availability = "online"
1 = ""
availability = "online"
memory = ""
target = "1047552"
name = "Domain-0"
console = ""
limit = "1048576"
vm = "/vm/00000000-0000-0000-0000-000000000000"
domid = "0"
backend = ""
tap = ""
1 = ""
2049 = ""
domain = "dom_92018"
frontend = "/local/domain/1/device/vbd/2049"
dev = "sda1"
state = "4"
params = "qcow:/mnt/instance_image_store_1/3811.qcow"
mode = "w"
online = "1"
frontend-id = "1"
type = "tap"
sectors = "3123200"
sector-size = "512"
info = "0"
hotplug-status = "connected"
vbd = ""
1 = ""
2050 = ""
domain = "dom_92018"
frontend = "/local/domain/1/device/vbd/2050"
dev = "sda2"
state = "4"
params = "/dev/VolGroupDomU/instance_ephemeral_store_1"
mode = "w"
online = "1"
frontend-id = "1"
type = "phy"
physical-device = "fd:6"
hotplug-status = "connected"
sectors = "312737792"
info = "0"
sector-size = "512"
2051 = ""
domain = "dom_92018"
frontend = "/local/domain/1/device/vbd/2051"
dev = "sda3"
state = "4"
params = "/dev/VolGroupDomU/instance_swap_store_1"
mode = "w"
online = "1"
frontend-id = "1"
type = "phy"
physical-device = "fd:7"
hotplug-status = "connected"
sectors = "1835008"
info = "0"
sector-size = "512"
vif = ""
1 = ""
0 = ""
domain = "dom_92018"
handle = "0"
script = "/etc/xen/scripts/vif-aes"
state = "4"
frontend = "/local/domain/1/device/vif/0"
mac = "12:31:34:00:03:8F"
online = "1"
frontend-id = "1"
feature-sg = "1"
feature-gso-tcpv4 = "1"
feature-rx-copy = "1"
hotplug-status = "connected"
error = ""
backend = ""
tap = ""
1 = ""
2049 = ""
error = "2 getting info"
1 = ""
device = ""
vbd = ""
2049 = ""
backend-id = "0"
virtual-device = "2049"
device-type = "disk"
state = "4"
backend = "/local/domain/0/backend/tap/1/2049"
ring-ref = "8"
event-channel = "6"
2050 = ""
backend-id = "0"
virtual-device = "2050"
device-type = "disk"
state = "4"
backend = "/local/domain/0/backend/vbd/1/2050"
ring-ref = "9"
event-channel = "7"
2051 = ""
backend-id = "0"
virtual-device = "2051"
device-type = "disk"
state = "4"
backend = "/local/domain/0/backend/vbd/1/2051"
ring-ref = "10"
event-channel = "8"
vif = ""
0 = ""
backend-id = "0"
mac = "12:31:34:00:03:8F"
handle = "0"
state = "4"
backend = "/local/domain/0/backend/vif/1/0"
tx-ring-ref = "523"
rx-ring-ref = "524"
event-channel = "9"
request-rx-copy = "0"
feature-rx-notify = "1"
feature-sg = "1"
feature-gso-tcpv4 = "1"
device-misc = ""
vif = ""
nextDeviceID = "1"
console = ""
ring-ref = "786743"
port = "2"
limit = "1048576"
tty = "/dev/pts/2"
name = "dom_92018"
vm = "/vm/00000000-0000-0000-0000-0000ec292018"
domid = "1"
cpu = ""
0 = ""
availability = "online"
memory = ""
target = "1740800"
store = ""
ring-ref = "786744"
port = "1"
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