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Debian 6 online live migration fails( Error: can't open file /dev/ptyp0 ) [message #51607] Sun, 17 August 2014 12:44 Go to next message
alenco is currently offline  alenco
Messages: 10
Registered: August 2014
Junior Member
From: *xs4all.nl
Having some troubles to migrate a Debian 6 container via online migration. When a user is logged in via SSH on the server, it will give the following error :


Setting CPU limit: 400
Setting CPU units: 1000
Setting CPUs: 4
Setting devices
Restore error, undump failed: Input/output error
Error: can't open file /dev/ptyp0 
Error: rst_file: -5 27003688
Error: rst_files: -5
Error: make_baby: -5
Error: rst_clone_children
Error: make_baby: -5
Error: rst_clone_children
Container restore failed


When logging all users out of SSH, it works fine. I know this was a problem some years ago with older versions of Debian. Any one knows to to fix this, so i don't have to kill any SSH connection.

Thanks in advance!

Centos 6.5
vzctl version 4.7.2
kernel 2.6.32-042stab093.4

Versions are the same on both sides.

[Updated on: Mon, 18 August 2014 06:55]

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Re: Debian 7 online live migration fails( Error: can't open file /dev/ptyp0 ) [message #51608 is a reply to message #51607] Mon, 18 August 2014 05:45 Go to previous messageGo to next message
khorenko is currently offline  khorenko
Messages: 514
Registered: January 2006
Location: Moscow, Russia
Senior Member
From: *qwerty.ru
Did that work on previous kernels?

Please file a bug to bugzilla.


If you problem is solved - please, report it!
It's even more important than reporting the problem itself...
Re: Debian 6 online live migration fails( Error: can't open file /dev/ptyp0 ) [message #51609 is a reply to message #51607] Mon, 18 August 2014 06:57 Go to previous message
alenco is currently offline  alenco
Messages: 10
Registered: August 2014
Junior Member
From: *xs4all.nl
Have to correct myself, it happens only with server that have the latest Debian 6 on it. Debian 7 works fine.

Just migrated to OpenVZ, so don't know if it worked on previous kernels.
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