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박은병

2010-Jun-21 17:46 UTC

[Xen-devel] [xm save --checkpoint problem]

I posted ''xm save --checkpoint'' problem in the past.

just snapshot with ''xm save'' works well.

but live checkpoint ''xm save --checkpoint'' command
doesn''t work well.
As you know, ''-c'' option means "leaving domain running
after creating
snapshot"

but after checkpointing, domU state is bad

xm console [domain] after checkpointing,

WARNING: g.e. still in use!
WARNING: g.e. still in use!
WARNING: g.e. still in use!
WARNING: g.e. still in use!

domU login prompt following this message appeared.
And, I try to login my guest domU, domU does not show any responses.

after destroy domU, I try to restore by snapshoted file and it seems to work
well.

I have tested xen 3.4.2 with pvops 2.6.31.6,
and now, xen-unstable 4.1 with pvops 2.6.32.15 also have same problem
my disribution is ubuntu 9.10 karmic server

I snapshoted the guest disk image (lvm) by applying following scripts
http://lists.xensource.com/archives/html/xen-devel/2007-06/msg00732.html

my /var/log/xen/xend.log

[2010-06-22 02:33:06 3161] INFO (DevController:361) Calling external
migration tool for step 1
[2010-06-22 02:33:07 3161] INFO (DevController:365) Calling VBD migration
script: /root/xen/domainU/ubuntu1-0622023306 ubuntu1 1
[2010-06-22 02:33:07 3161] INFO (DevController:361) Calling external
migration tool for step 1
[2010-06-22 02:33:07 3161] INFO (DevController:365) Error: Could not find
script ''/etc/xen/scripts/vif-migration.sh''
[2010-06-22 02:33:07 3161] DEBUG (XendCheckpoint:124) [xc_save]:
/usr/lib/xen/bin/xc_save 37 8 0 0 0
[2010-06-22 02:33:07 3161] INFO (XendCheckpoint:408) xc_save: failed to get
the suspend evtchn port
[2010-06-22 02:33:07 3161] INFO (XendCheckpoint:408)
[2010-06-22 02:33:07 3161] DEBUG (XendCheckpoint:379) suspend
[2010-06-22 02:33:07 3161] DEBUG (XendCheckpoint:127) In saveInputHandler
suspend
[2010-06-22 02:33:07 3161] DEBUG (XendCheckpoint:129) Suspending 8 ...
[2010-06-22 02:33:07 3161] DEBUG (XendDomainInfo:521)
XendDomainInfo.shutdown(suspend)
[2010-06-22 02:33:07 3161] DEBUG (XendDomainInfo:1877)
XendDomainInfo.handleShutdownWatch
[2010-06-22 02:33:07 3161] DEBUG (XendDomainInfo:1877)
XendDomainInfo.handleShutdownWatch
[2010-06-22 02:33:07 3161] INFO (XendDomainInfo:2074) Domain has shutdown:
name=migrating-ubuntu1 id=8 reason=suspend.
[2010-06-22 02:33:07 3161] INFO (DevController:361) Calling external
migration tool for step 2
[2010-06-22 02:33:08 3161] INFO (DevController:365) Calling VBD migration
script: /root/xen/domainU/ubuntu1-0622023306 ubuntu1 2
[2010-06-22 02:33:08 3161] INFO (DevController:365) File descriptor 3 left
open
[2010-06-22 02:33:08 3161] INFO (DevController:365) File descriptor 18 left
open
[2010-06-22 02:33:08 3161] INFO (DevController:365) File descriptor 19 left
open
[2010-06-22 02:33:08 3161] INFO (DevController:365) File descriptor 20 left
open
[2010-06-22 02:33:08 3161] INFO (DevController:365) File descriptor 21 left
open
[2010-06-22 02:33:08 3161] INFO (DevController:365) File descriptor 22 left
open
[2010-06-22 02:33:08 3161] INFO (DevController:365) File descriptor 23 left
open
[2010-06-22 02:33:08 3161] INFO (DevController:365) File descriptor 24 left
open
[2010-06-22 02:33:08 3161] INFO (DevController:365) File descriptor 25 left
open
[2010-06-22 02:33:08 3161] INFO (DevController:365) File descriptor 26 left
open
[2010-06-22 02:33:08 3161] INFO (DevController:365) File descriptor 27 left
open
[2010-06-22 02:33:08 3161] INFO (DevController:365) File descriptor 28 left
open
[2010-06-22 02:33:08 3161] INFO (DevController:365) File descriptor 29 left
open
[2010-06-22 02:33:08 3161] INFO (DevController:365) File descriptor 36 left
open
[2010-06-22 02:33:08 3161] INFO (DevController:365) File descriptor 37 left
open
[2010-06-22 02:33:08 3161] INFO (DevController:365) File descriptor 40 left
open
[2010-06-22 02:33:08 3161] INFO (DevController:365) File descriptor 41 left
open
[2010-06-22 02:33:08 3161] INFO (DevController:365) File descriptor 43 left
open
[2010-06-22 02:33:08 3161] INFO (DevController:365)   Logical volume
"ubuntu1-0622023306" created
[2010-06-22 02:33:08 3161] INFO (DevController:361) Calling external
migration tool for step 2
[2010-06-22 02:33:08 3161] INFO (DevController:365) Error: Could not find
script ''/etc/xen/scripts/vif-migration.sh''
[2010-06-22 02:33:08 3161] INFO (XendCheckpoint:135) Domain 8 suspended.
[2010-06-22 02:33:08 3161] INFO (DevController:361) Calling external
migration tool for step 3
[2010-06-22 02:33:08 3161] INFO (DevController:365) Calling VBD migration
script: /root/xen/domainU/ubuntu1-0622023306 ubuntu1 3
[2010-06-22 02:33:08 3161] INFO (DevController:361) Calling external
migration tool for step 3
[2010-06-22 02:33:09 3161] INFO (DevController:365) Error: Could not find
script ''/etc/xen/scripts/vif-migration.sh''
[2010-06-22 02:33:09 3161] DEBUG (XendCheckpoint:144) Written done
[2010-06-22 02:33:28 3161] DEBUG (XendDomainInfo:3131)
XendDomainInfo.resumeDomain(8)
[2010-06-22 02:33:28 3161] DEBUG (XendDomainInfo:3172)
XendDomainInfo.resumeDomain: completed

what is the problem??
''xm save --checkpoint'' is works well to you??

-- 
Eunbyung Park


_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel

박은병

2010-Jun-22 12:08 UTC

head link

[Xen-devel] Re: [xm save --checkpoint problem]

This is soliloquy....since anyone do not answer..:)..

I have tested same environment except for HVM domU

In HVM domU guests, ''xm save --checkpoint'' worked very well.

So, I think that this problem is PV domU''s

I searched the xen mailing list, But, any answer could not be found.

Is there anyone who success the ''xm save --checkpoint'' command
??

2010/6/22 박은병 <peb1611@gmail.com>
> I posted ''xm save --checkpoint'' problem in the past.
>
> just snapshot with ''xm save'' works well.
>
> but live checkpoint ''xm save --checkpoint'' command
doesn''t work well.
> As you know, ''-c'' option means "leaving domain
running after creating
> snapshot"
>
> but after checkpointing, domU state is bad
>
> xm console [domain] after checkpointing,
>
> WARNING: g.e. still in use!
> WARNING: g.e. still in use!
> WARNING: g.e. still in use!
> WARNING: g.e. still in use!
>
> domU login prompt following this message appeared.
> And, I try to login my guest domU, domU does not show any responses.
>
> after destroy domU, I try to restore by snapshoted file and it seems to
> work well.
>
> I have tested xen 3.4.2 with pvops 2.6.31.6,
> and now, xen-unstable 4.1 with pvops 2.6.32.15 also have same problem
> my disribution is ubuntu 9.10 karmic server
>
> I snapshoted the guest disk image (lvm) by applying following scripts
> http://lists.xensource.com/archives/html/xen-devel/2007-06/msg00732.html
>
> my /var/log/xen/xend.log
>
> [2010-06-22 02:33:06 3161] INFO (DevController:361) Calling external
> migration tool for step 1
> [2010-06-22 02:33:07 3161] INFO (DevController:365) Calling VBD migration
> script: /root/xen/domainU/ubuntu1-0622023306 ubuntu1 1
> [2010-06-22 02:33:07 3161] INFO (DevController:361) Calling external
> migration tool for step 1
> [2010-06-22 02:33:07 3161] INFO (DevController:365) Error: Could not find
> script ''/etc/xen/scripts/vif-migration.sh''
> [2010-06-22 02:33:07 3161] DEBUG (XendCheckpoint:124) [xc_save]:
> /usr/lib/xen/bin/xc_save 37 8 0 0 0
> [2010-06-22 02:33:07 3161] INFO (XendCheckpoint:408) xc_save: failed to get
> the suspend evtchn port
> [2010-06-22 02:33:07 3161] INFO (XendCheckpoint:408)
> [2010-06-22 02:33:07 3161] DEBUG (XendCheckpoint:379) suspend
> [2010-06-22 02:33:07 3161] DEBUG (XendCheckpoint:127) In saveInputHandler
> suspend
> [2010-06-22 02:33:07 3161] DEBUG (XendCheckpoint:129) Suspending 8 ...
> [2010-06-22 02:33:07 3161] DEBUG (XendDomainInfo:521)
> XendDomainInfo.shutdown(suspend)
> [2010-06-22 02:33:07 3161] DEBUG (XendDomainInfo:1877)
> XendDomainInfo.handleShutdownWatch
> [2010-06-22 02:33:07 3161] DEBUG (XendDomainInfo:1877)
> XendDomainInfo.handleShutdownWatch
> [2010-06-22 02:33:07 3161] INFO (XendDomainInfo:2074) Domain has shutdown:
> name=migrating-ubuntu1 id=8 reason=suspend.
> [2010-06-22 02:33:07 3161] INFO (DevController:361) Calling external
> migration tool for step 2
> [2010-06-22 02:33:08 3161] INFO (DevController:365) Calling VBD migration
> script: /root/xen/domainU/ubuntu1-0622023306 ubuntu1 2
> [2010-06-22 02:33:08 3161] INFO (DevController:365) File descriptor 3 left
> open
> [2010-06-22 02:33:08 3161] INFO (DevController:365) File descriptor 18 left
> open
> [2010-06-22 02:33:08 3161] INFO (DevController:365) File descriptor 19 left
> open
> [2010-06-22 02:33:08 3161] INFO (DevController:365) File descriptor 20 left
> open
> [2010-06-22 02:33:08 3161] INFO (DevController:365) File descriptor 21 left
> open
> [2010-06-22 02:33:08 3161] INFO (DevController:365) File descriptor 22 left
> open
> [2010-06-22 02:33:08 3161] INFO (DevController:365) File descriptor 23 left
> open
> [2010-06-22 02:33:08 3161] INFO (DevController:365) File descriptor 24 left
> open
> [2010-06-22 02:33:08 3161] INFO (DevController:365) File descriptor 25 left
> open
> [2010-06-22 02:33:08 3161] INFO (DevController:365) File descriptor 26 left
> open
> [2010-06-22 02:33:08 3161] INFO (DevController:365) File descriptor 27 left
> open
> [2010-06-22 02:33:08 3161] INFO (DevController:365) File descriptor 28 left
> open
> [2010-06-22 02:33:08 3161] INFO (DevController:365) File descriptor 29 left
> open
> [2010-06-22 02:33:08 3161] INFO (DevController:365) File descriptor 36 left
> open
> [2010-06-22 02:33:08 3161] INFO (DevController:365) File descriptor 37 left
> open
> [2010-06-22 02:33:08 3161] INFO (DevController:365) File descriptor 40 left
> open
> [2010-06-22 02:33:08 3161] INFO (DevController:365) File descriptor 41 left
> open
> [2010-06-22 02:33:08 3161] INFO (DevController:365) File descriptor 43 left
> open
> [2010-06-22 02:33:08 3161] INFO (DevController:365)   Logical volume
> "ubuntu1-0622023306" created
> [2010-06-22 02:33:08 3161] INFO (DevController:361) Calling external
> migration tool for step 2
> [2010-06-22 02:33:08 3161] INFO (DevController:365) Error: Could not find
> script ''/etc/xen/scripts/vif-migration.sh''
> [2010-06-22 02:33:08 3161] INFO (XendCheckpoint:135) Domain 8 suspended.
> [2010-06-22 02:33:08 3161] INFO (DevController:361) Calling external
> migration tool for step 3
> [2010-06-22 02:33:08 3161] INFO (DevController:365) Calling VBD migration
> script: /root/xen/domainU/ubuntu1-0622023306 ubuntu1 3
> [2010-06-22 02:33:08 3161] INFO (DevController:361) Calling external
> migration tool for step 3
> [2010-06-22 02:33:09 3161] INFO (DevController:365) Error: Could not find
> script ''/etc/xen/scripts/vif-migration.sh''
> [2010-06-22 02:33:09 3161] DEBUG (XendCheckpoint:144) Written done
> [2010-06-22 02:33:28 3161] DEBUG (XendDomainInfo:3131)
> XendDomainInfo.resumeDomain(8)
> [2010-06-22 02:33:28 3161] DEBUG (XendDomainInfo:3172)
> XendDomainInfo.resumeDomain: completed
>
> what is the problem??
> ''xm save --checkpoint'' is works well to you??
>
> --
> Eunbyung Park
>


-- 
Eunbyung Park


_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel

Brendan Cully

2010-Jun-23 17:19 UTC

head link

Re: [Xen-devel] Re: [xm save --checkpoint problem]

On Tuesday, 22 June 2010 at 21:08, 박은병 wrote:> This is soliloquy....since anyone do not answer..:)..
> 
> I have tested same environment except for HVM domU
> 
> In HVM domU guests, ''xm save --checkpoint'' worked very
well.
> 
> So, I think that this problem is PV domU''s
> 
> I searched the xen mailing list, But, any answer could not be found.
> 
> Is there anyone who success the ''xm save --checkpoint''
command ??
It is known not to work with pvops guests. It should be fine for
everything else (i.e., HVM and guests on the 2.6.18 tree).

_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel

Pasi Kärkkäinen

2010-Jun-23 17:38 UTC

head link

Re: [Xen-devel] Re: [xm save --checkpoint problem]

On Wed, Jun 23, 2010 at 10:19:13AM -0700, Brendan Cully
wrote:> On Tuesday, 22 June 2010 at 21:08, ????????? wrote:
> > This is soliloquy....since anyone do not answer..:)..
> > 
> > I have tested same environment except for HVM domU
> > 
> > In HVM domU guests, ''xm save --checkpoint'' worked
very well.
> > 
> > So, I think that this problem is PV domU''s
> > 
> > I searched the xen mailing list, But, any answer could not be found.
> > 
> > Is there anyone who success the ''xm save
--checkpoint'' command ??
> 
> It is known not to work with pvops guests. It should be fine for
> everything else (i.e., HVM and guests on the 2.6.18 tree).
> 
Any idea what the actual problem is? 

-- Pasi


_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel

Xen devel - Jun 2010 - [xm save --checkpoint problem]

[Xen-devel] [xm save --checkpoint problem]

[Xen-devel] Re: [xm save --checkpoint problem]

Re: [Xen-devel] Re: [xm save --checkpoint problem]

Re: [Xen-devel] Re: [xm save --checkpoint problem]