Hi i think the problem is vzdump.
This is the log of the backup:
Detailed backup logs:
vzdump --quiet --node 2 --snapshot --compress --dumpdir /vz/backups --mailto xxx@xxxxxxxxx.com 101
101: Feb 03 01:00:04 INFO: Starting Backup of VM 101 (openvz)
101: Feb 03 01:00:04 INFO: CTID 101 exist mounted running
101: Feb 03 01:00:04 INFO: status = CTID 101 exist mounted running
101: Feb 03 01:00:04 INFO: mode failure - unable to detect lvm volume group
101: Feb 03 01:00:04 INFO: trying 'suspend' mode instead
101: Feb 03 01:00:04 INFO: backup mode: suspend
101: Feb 03 01:00:04 INFO: bandwidth limit: 10240 KB/s
101: Feb 03 01:00:04 INFO: starting first sync /var/lib/vz/private/101/ to /vz/vztmp/vzdumptmp4125
101: Feb 03 02:21:37 INFO: file has vanished: "/var/lib/vz/private/101/home/www/webx/user/webx_xxx/Maildir/courierimapkeywords/1265157441.15611_0.ns1"
101: Feb 03 03:29:29 INFO: Number of files: 414584
101: Feb 03 03:29:29 INFO: Number of files transferred: 385141
101: Feb 03 03:29:29 INFO: Total file size: 68275699091 bytes
101: Feb 03 03:29:29 INFO: Total transferred file size: 68273214154 bytes
101: Feb 03 03:29:29 INFO: Literal data: 68306670027 bytes
101: Feb 03 03:29:29 INFO: Matched data: 0 bytes
101: Feb 03 03:29:29 INFO: File list size: 8856510
101: Feb 03 03:29:29 INFO: File list generation time: 0.001 seconds
101: Feb 03 03:29:29 INFO: File list transfer time: 0.000 seconds
101: Feb 03 03:29:29 INFO: Total bytes sent: 68340236533
101: Feb 03 03:29:29 INFO: Total bytes received: 7447274
101: Feb 03 03:29:29 INFO: sent 68340236533 bytes received 7447274 bytes 7623410.16 bytes/sec
101: Feb 03 03:29:29 INFO: total size is 68275699091 speedup is 1.00
101: Feb 03 03:29:29 INFO: rsync warning: some files vanished before they could be transferred (code 24) at main.c(1058) [sender=3.0.3]
101: Feb 03 03:29:29 INFO: first sync finished (8965 seconds)
101: Feb 03 03:29:29 INFO: suspend vm
101: Feb 03 03:29:29 INFO: Setting up checkpoint...
101: Feb 03 03:29:29 INFO: suspend...
101: Feb 03 03:29:39 INFO: Can not suspend container: Interrupted system call
101: Feb 03 03:29:39 INFO: Error: interrupted or timed out.
101: Feb 03 03:29:39 INFO: Checkpointing failed
101: Feb 03 03:37:51 ERROR: Backup of VM 101 failed - command 'vzctl --skiplock chkpnt 101 --suspend' failed with exit code 16
and just at 3:29 i have a dead process
ps aux | grep D
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 22753 0.0 0.0 3104 688 pts/1 S+ 09:35 0:00 grep D
postfix 23755 0.0 0.0 5024 2080 ? D 03:29 0:00 cleanup -z -t unix -u -c
Any idea?