Samuel Tremblay-Cossette wrote on 01.10.2008 23:49:
Hi,
I'm unable to checkpoint and migrate my VEs. I'm using
2.6.24-19-openvz that come with Ubuntu 8.04.
Here is the error message:
[EMAIL PROTECTED]:~# vzctl chkpnt 2
Setting up checkpoint...
suspend...
dump...
Can not dump VE: Invalid argument
Error: d_path is invisible /dev
Checkpointing failed
Hello,
I'm not sure how that did happen on your node but that message should
have been appeared when overmount was detected.
I can give a simple example. Let's assume that you have a process that
opend a file /var/log/messages, after that you decide to use "another"
/var directory and for instance do the bind mount from the HN (mount
--bind /var/ /vz/root/$VEID/var). So, when you try to checkpoint your VE
you get this message.
May be you've started udev after your VE have been started and any
process uses "old" /dev directory?
Do you have a way to reproduce it for sure? Is there a particular
template that leads us to this error message?
Thank You!
kernel: CPT ERR: f6d61000,2 :d_path is invisible /dev
And some info about my setup:
[EMAIL PROTECTED]:~# sysctl fs.vsyscall vm.vdso_enabled
fs.vsyscall = 0
vm.vdso_enabled = 0
[EMAIL PROTECTED]:~# vzctl enter 2
entered into VE 2
[EMAIL PROTECTED]:/# mount
simfs on / type simfs (rw,relatime)
proc on /proc type proc (rw,nosuid,nodev,noexec)
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec)
tmpfs on /var/run type tmpfs (rw,nosuid,nodev,noexec)
tmpfs on /var/lock type tmpfs (rw,nosuid,nodev,noexec)
simfs on /dev/.static/dev type simfs (rw,relatime)
udev on /dev type tmpfs (rw,relatime)
tmpfs on /dev/shm type tmpfs (rw,relatime)
devpts on /dev/pts type devpts (rw,relatime)
[EMAIL PROTECTED]:/#
[EMAIL PROTECTED]:~# vzctl --version
vzctl version 3.0.22
[EMAIL PROTECTED]:~# cat /proc/vz/version
ovz005
All the best,
Samuel
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