[Xen-users] Error trying to migrate vm

[Shavian Shakes <shavian78@xxxxxxxxx>]

Hi,

 

I get this error trying to migrate a domU:

 

 # xm list
Name              Id  Mem(MB)  CPU  State  Time(s)  Console
Domain-0           0      443    0  r----    540.7       
Domain_2_Migrate   7      256    1  -b---      5.0    9607
 

# xm migrate -l Domain_2_Migrate 10.182.12.24
Error: errors: transfer daemon (xfrd) error: 1
 

The /var/log/xfrd log shows:

(xfr.migrate 7 "(domain (id 7) (name Domain_2_Migrate) (memory 256) (maxmem 262144) (state -b---) (cpu 1) (cpu_time 4.956601097) (up_time 1869.840451) (start_time 1128623464.58) (console (status connected) (id 16) (domain 7) (local_port 16) (remote_port 1) (console_port 9607) (connected 127.0.0.1 32798)) (devices (vif (idx 0) (vif 0) (mac aa:00:00:12:d8:cc) (vifname vif7.0) (evtchn 18 4) (index 0)) (vbd (idx 0) (vdev 2049) (device 1792) (mode w) (dev sda1) (uname file:/net/netapp/vol/vol1/neerajk/xen-fs/root_dom2.img) (node /dev/loop0) (index 0))) (config (vm (name Domain_2_Migrate) (memory 256) (image (linux (kernel /boot/vmlinuz- 2.6.8-24.16-xen) (root '/dev/sda1 rw') (args 4))) (device (vbd (uname file:/net/netapp/vol/vol1/neerajk/xen-fs/root_dom2.img) (dev sda1) (mode w))) (device (vif (mac aa:00:00:12:d8:cc))))))" 10.182.12.24 8002 1 0)[DEBUG] Conn_sxpr< err=0
[DEBUG] Conn_connect> addr=10.182.12.24:8002
[DEBUG] Conn_init> flags=1
[DEBUG] Conn_init> write stream...
[DEBUG] stream_init>mode=w flags=1 compress=0
[DEBUG] stream_init> unbuffer...
[DEBUG] stream_init< err=0
[DEBUG] Conn_init> read stream...
[DEBUG] stream_init>mode=r flags=1 compress=0
[DEBUG] stream_init> unbuffer...
[DEBUG] stream_init< err=0
[DEBUG] Conn_sxpr>
(xfr.err 0)[DEBUG] Conn_sxpr< err=0

[1128625334.430336] xc_linux_save start 7

xc_linux_save start 7
[1128625334.431728] Saving memory pages: iter 1   0%
Saving memory pages: iter 1   0%Error when writing to state file (5)
Error when writing to state file (5)
12826 [WRN] XFRD> Transfer errors:
12826 [WRN] XFRD> state=XFR_STATE    err=1
12826 [INF] XFRD> Xfr service err=1

The FS for the domain is kept on a NAS filer. I can start the dom on either machine with the exact same configuration file.

I have made sure that memoery is available on the destination machine. xfrd is also running on both the machines. I have tried migrating in both directions and the result is the same.

Where should I look for debugging ?

-Shavian.

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