| Re: live migration with extra mounts in VE [message #24597 is a reply to message #24595] |
Thu, 06 December 2007 15:44   |
frodo
Messages: 6
Registered: December 2007
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Junior Member |
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Andrey,
I'm looking into the access to the machine. I hope the security
engineers allow it.
The bug is indeed reproducible with vzctl chkpnt <VEID> and vzctl restore <VEID>.
I get the following in dmesg:
CPT ERR: f5b90800,120 :external mount: mnt rootfs / rootfs, mnt_ub 0, exec_ub 120
CPT ERR: f5b90800,120 :external mount: mnt /vz/private/120 / simfs, mnt_ub 0, exec_ub 120
The mount does appear automatically when I start the VE, as can
be seen below. It just doesn't survive a chkpnt-restore cycle.
[root@sv-ard-drp8 ~]# vzctl start 120
Starting VE ...
VE is mounted
Setting CPU units: 1000
Setting devices
Configure meminfo: 49152
Set hostname: vzmig120.test.ardatis.com
Configure veth devices: veth120.0
Initializing interface veth120.0 for VE120.
Adding interface veth120.0 to the bridge br1.
VE start in progress...
[root@sv-ard-drp8 ~]# vzctl enter 120
entered into VE 120
vzmig120:/# cat /proc/mounts
simfs / simfs rw 0 0
tmpfs /lib/init/rw tmpfs rw,nosuid 0 0
proc /proc proc rw,nosuid,nodev,noexec 0 0
sysfs /sys sysfs rw,nosuid,nodev,noexec 0 0
tmpfs /dev/shm tmpfs rw,nosuid,nodev 0 0
devpts /dev/pts devpts rw,nosuid,noexec 0 0
/dev/mapper/vg_120-lv_ftpdata /data/ftp ext3 rw,data=ordered 0 0
vzmig120:/# logout
exited from VE 120
[root@sv-ard-drp8 ~]# vzctl chkpnt 120
Setting up checkpoint...
suspend...
dump...
kill...
VE is unmounted
Checkpointing completed succesfully
[root@sv-ard-drp8 ~]# vzctl restore 120
Restoring VE ...
Starting VE ...
VE is mounted
undump...
Setting CPU units: 1000
Setting devices
Configure meminfo: 49152
Configure veth devices: veth120.0
Initializing interface veth120.0 for VE120.
Adding interface veth120.0 to the bridge br1.
Error: undump failed: No such file or directory
Restoring failed:
Error: -2 mounting /data/ftp ext3 40000000
Error: rst_namespace: -2
VE start failed
Stopping VE ...
VE was stopped
VE is unmounted
[root@sv-ard-drp8 ~]#
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