save domain hangs in xen 2.0.7

save domain hangs in xen 2.0.7

[FreiNet Technik]

Hello,

we use xen 2.0.7 on debian sarge. Sometimes (ca. 20%) the saving of a 
domain hangs, the savefile is there but 0 bytes in size.
If this happens, the domain is still running (i can connect over ssh) 
but I cannot destroy it anymore with "xm destroy" (no error, but domain 
still running) or log in with "xm console" (connection refused).
Conspicuous is the fact that when it happens, there are suddenly two 
xfrd-processes.

Because I like to move the domain to another physical host via 
heartbeat, is there a possibility to reliable destroy the domain even if 
the control via "xm" is lost ?

Thank you very much,

Holger

last lines of xend-debug.log:

----------------------------------------------------------------------
recv_fe_interface_connect {'tx_shmem_frame': 127734, 'rx_shmem_frame': 
127733, 'handle': 0}
{}
VirqClient.virqReceived> 4
vif-bridge down vif=secm1 domain=secmail01 mac=aa:00:00:01:01:01 
bridge=xen-br0
ioctl: LOOP_SET_FD: Das Gerät oder die Ressource ist belegt
ioctl: LOOP_SET_FD: Das Gerät oder die Ressource ist belegt
ioctl: LOOP_SET_FD: Das Gerät oder die Ressource ist belegt
ioctl: LOOP_SET_FD: Das Gerät oder die Ressource ist belegt
ioctl: LOOP_SET_FD: Das Gerät oder die Ressource ist belegt
ioctl: LOOP_SET_FD: Das Gerät oder die Ressource ist belegt
43: vif39.0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop
     link/ether fe:ff:ff:ff:ff:ff brd ff:ff:ff:ff:ff:ff
43: secm1: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue
     link/ether fe:ff:ff:ff:ff:ff brd ff:ff:ff:ff:ff:ff
vif-bridge up vif=secm1 domain=secmail01 mac=aa:00:00:01:01:01 
bridge=xen-br0
recv_fe_driver_status> {'status': 1}

recv_fe_interface_connect {'tx_shmem_frame': 118517, 'rx_shmem_frame': 
118516, 'handle': 0}
-----------------------------------------------------------------------

last lines of xend.log:

-----------------------------------------------------------------------
[2005-12-15 10:45:59 xend] INFO (XendMigrate:436) Restore OK: 
/ha/secmail01/secmail01-save
[2005-12-15 10:45:59 xend] INFO (XendRoot:113) EVENT> xend.restore 
['ok', ['restore', ['id', '55'], ['file', '/ha/secmail01/secmail01-save']]]
[2005-12-15 10:45:59 xend] INFO (XendRoot:113) EVENT> 
xend.domain.unpause ['secmail01', '39']
[2005-12-15 10:46:10 xend] INFO (XendMigrate:380) Save BEGIN: ['save', 
['id', '56'], ['state', 'begin'], ['domain', '39'], ['file', 
'/ha/secmail01/secmail01-save']]
[2005-12-15 10:46:10 xend] INFO (XendRoot:113) EVENT> xend.domain.save 
['secmail01', '39', 'begin', ['save', ['id', '56'], ['state', 'begin'], 
['domain', '39'], ['file', '/ha/secmail01/secmail01-save']]]
------------------------------------------------------------------------