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checkpoint fails [message #7801]

Thu, 26 October 2006 02:09

John Paul Walters
Messages: 10
Registered: October 2006

Junior Member

I'm trying to use the checkpoint/restart functionality of OpenVZ. Unfortunately, here's what I get:

#vzctl chkpnt 110 --dumpfile test

Setting up checkpoint...
suspend...
dump...
Can not dump VE: Invalid argument
page without mapping at 0057b000@75528
dump_one_vma: funkey page
Checkpointing failed

I'm using vzctl version 3.0.12 with kernel version 2.6.16-1.2133_FC5.026test015

Any thoughts?

JP

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Re: checkpoint fails [message #7806 is a reply to message #7801]

Thu, 26 October 2006 08:26

Andrey Mirkin
Messages: 193
Registered: May 2006

Senior Member

It is known issue:
http://bugzilla.openvz.org/show_bug.cgi?id=203

Just disable vsyscall mapping as discribed in bug.

Andrey Mirkin

http://static.openvz.org/userbars/openvz-developer.png

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Re: checkpoint fails [message #46385 is a reply to message #7801]

Wed, 16 May 2012 10:37

damswf
Messages: 5
Registered: September 2009

Junior Member

I have this same problem:

root@wfsr010:~# vzctl chkpnt 102
Setting up checkpoint...
suspend...
dump...
Can not dump container: Invalid argument
Error: page without mapping at b66f4000@22617952
Error: dump_one_vma: funkey page
Checkpointing failed

When I try do disable vsyscall by passing vdso=0 to the kernel and reboot, It doesn't change anything.

Please help me I am stuck.

root@wfsr010:~# uname -a
Linux wfsr010 2.6.32-11-pve #1 SMP Wed Apr 11 07:17:05 CEST 2012 x86_64 GNU/Linux

root@wfsr010:~# vzctl
vzctl version 3.0.30.2-11.git.aefc8ef

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Re: checkpoint fails [message #46465 is a reply to message #46385]

Tue, 22 May 2012 14:27

damswf
Messages: 5
Registered: September 2009

Junior Member

Help please, I cannot migrate my CTs due to this bug.

I tested the new kernel: 2.6.32-12-pve from Proxmox and it doesn't resolve this bug.

Disabling vsyscall mapping doesn't resolve it either.

Thanks in advance.
Regards

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Re: checkpoint fails [message #46670 is a reply to message #46465]

Fri, 01 June 2012 15:34

damswf
Messages: 5
Registered: September 2009

Junior Member

I tested:
# setarch `uname -m` -R vzctl chkpnt 102
and:
# sysctl -w kernel.randomize_va_space=0

as seen here:
www.acsu.buffalo.edu/~charngda/x86assembly.html

but it does not change, I still have the same error:

root@wfsr010:/boot# sysctl -w kernel.randomize_va_space=0
kernel.randomize_va_space = 0
root@wfsr010:/boot# setarch `uname -m` -R vzctl chkpnt 102
Setting up checkpoint...
suspend...
dump...
Can not dump container: Invalid argument
Error: page without mapping at b6696000@155457400
Error: dump_one_vma: funkey page
Checkpointing failed

Nobody has a clue about this problem?

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