Re: [xm save --checkpoint problem]

[박은병 <peb1611@gmail.com>]

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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

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