[Xen-users] Questions: blocked / migration fails / device 768

[Stefan de Konink <skinkie@xxxxxxxxx>]

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Hi,


How can I see the resources that are blocked when xm list shows a 'b' in
state?



My migration basically fails... live or non-live:

xm migrate -l skinkie_gentoo 192.168.0.5

> [2007-11-11 03:48:57 3376] DEBUG (balloon:116) Balloon: 2128 KiB free; need 
> 2048; done.
> [2007-11-11 03:48:57 3376] DEBUG (XendCheckpoint:88) [xc_save]: 
> /usr/lib64/xen/bin/xc_save 4 3 0 0 1
> [2007-11-11 03:48:57 3376] INFO (XendCheckpoint:362) ERROR Internal error: 
> Couldn't enable shadow mode
> [2007-11-11 03:48:57 3376] INFO (XendCheckpoint:362) Save exit rc=1
> [2007-11-11 03:48:57 3376] ERROR (XendCheckpoint:140) Save failed on domain 
> skinkie_gentoo (3).
> Traceback (most recent call last):
>   File "usr/lib64/python2.5/site-packages/xen/xend/XendCheckpoint.py", line 
> 109, in save
>     forkHelper(cmd, fd, saveInputHandler, False)
>   File "usr/lib64/python2.5/site-packages/xen/xend/XendCheckpoint.py", line 
> 350, in forkHelper
>     raise XendError("%s failed" % string.join(cmd))
> XendError: /usr/lib64/xen/bin/xc_save 4 3 0 0 1 failed
> [2007-11-11 03:48:57 3376] DEBUG (XendDomainInfo:1793) 
> XendDomainInfo.resumeDomain(3)
> [2007-11-11 03:48:57 3376] DEBUG (XendCheckpoint:143) XendCheckpoint.save: 
> resumeDomain



xm migrate skinkie_gentoo 192.168.0.5


> [2007-11-11 03:48:11 3376] DEBUG (XendCheckpoint:88) [xc_save]: 
> /usr/lib64/xen/bin/xc_save 4 3 0 0 0
> [2007-11-11 03:48:11 3376] DEBUG (XendCheckpoint:333) suspend
> [2007-11-11 03:48:11 3376] DEBUG (XendCheckpoint:91) In saveInputHandler 
> suspend
> [2007-11-11 03:48:11 3376] DEBUG (XendCheckpoint:93) Suspending 3 ...
> [2007-11-11 03:48:11 3376] DEBUG (XendDomainInfo:451) 
> XendDomainInfo.shutdown(suspend)
> [2007-11-11 03:48:12 3376] DEBUG (XendDomainInfo:991) 
> XendDomainInfo.handleShutdownWatch
> [2007-11-11 03:48:12 3376] DEBUG (XendDomainInfo:991) 
> XendDomainInfo.handleShutdownWatch
> [2007-11-11 03:48:12 3376] INFO (XendCheckpoint:98) Domain 3 suspended.
> [2007-11-11 03:48:12 3376] DEBUG (XendCheckpoint:107) Written done
> [2007-11-11 03:48:12 3376] INFO (XendCheckpoint:362) ERROR Internal error: 
> write: p2m_frame_list
> [2007-11-11 03:48:12 3376] INFO (XendCheckpoint:362) ERROR Internal error: 
> Failed to map/save the p2m frame list
> [2007-11-11 03:48:12 3376] INFO (XendCheckpoint:362) Save exit rc=1
> [2007-11-11 03:48:12 3376] INFO (XendDomainInfo:1179) Domain has shutdown: 
> name=migrating-skinkie_gentoo id=3 reason=suspend.
> [2007-11-11 03:48:12 3376] ERROR (XendCheckpoint:140) Save failed on domain 
> skinkie_gentoo (3).
> Traceback (most recent call last):
>   File "usr/lib64/python2.5/site-packages/xen/xend/XendCheckpoint.py", line 
> 109, in save
>     forkHelper(cmd, fd, saveInputHandler, False)
>   File "usr/lib64/python2.5/site-packages/xen/xend/XendCheckpoint.py", line 
> 350, in forkHelper
>     raise XendError("%s failed" % string.join(cmd))
> XendError: /usr/lib64/xen/bin/xc_save 4 3 0 0 0 failed
> [2007-11-11 03:48:12 3376] DEBUG (XendDomainInfo:1793) 
> XendDomainInfo.resumeDomain(3)
> [2007-11-11 03:48:12 3376] DEBUG (XendCheckpoint:143) XendCheckpoint.save: 
> resumeDomain


Currently running a Gentoo xen kernel. 2.6.20. And xen-tools-3.1.1-r1.
And having an iscsi device as filesystem.



What is the mysterious device 768? When initiating the domainU Xen hangs
for exactly one minute.

> [2007-11-11 03:20:58 3376] DEBUG (XendDomainInfo:991) 
> XendDomainInfo.handleShutdownWatch
> [2007-11-11 03:20:58 3376] DEBUG (DevController:150) Waiting for devices vif.
> [2007-11-11 03:20:58 3376] DEBUG (DevController:150) Waiting for devices usb.
> [2007-11-11 03:20:58 3376] DEBUG (DevController:150) Waiting for devices vbd.
> [2007-11-11 03:20:58 3376] DEBUG (DevController:155) Waiting for 768.
> [2007-11-11 03:20:58 3376] DEBUG (DevController:577) hotplugStatusCallback 
> /local/domain/0/backend/vbd/2/768/hotplug-status.
> [2007-11-11 03:21:58 3376] DEBUG (DevController:577) hotplugStatusCallback 
> /local/domain/0/backend/vbd/1/768/hotplug-status.
> [2007-11-11 03:21:58 3376] DEBUG (DevController:577) hotplugStatusCallback 
> /local/domain/0/backend/vbd/1/768/hotplug-status.
> [2007-11-11 03:21:58 3376] DEBUG (DevController:577) hotplugStatusCallback 
> /local/domain/0/backend/vbd/2/768/hotplug-status.
> [2007-11-11 03:21:58 3376] DEBUG (DevController:591) hotplugStatusCallback 1.
> [2007-11-11 03:21:58 3376] DEBUG (DevController:150) Waiting for devices irq.
> [2007-11-11 03:21:58 3376] DEBUG (DevController:150) Waiting for devices vkbd.
> [2007-11-11 03:21:58 3376] DEBUG (DevController:150) Waiting for devices vfb.
> [2007-11-11 03:21:58 3376] DEBUG (DevController:150) Waiting for devices 
> console.
> [2007-11-11 03:21:58 3376] DEBUG (DevController:155) Waiting for 0.
> [2007-11-11 03:21:58 3376] DEBUG (DevController:150) Waiting for devices pci.
> [2007-11-11 03:21:58 3376] DEBUG (DevController:150) Waiting for devices 
> ioports.
> [2007-11-11 03:21:58 3376] DEBUG (DevController:150) Waiting for devices tap.
> [2007-11-11 03:21:58 3376] DEBUG (DevController:150) Waiting for devices vtpm.
> [2007-11-11 03:21:58 3376] INFO (XendDomain:1117) Domain skinkie_gentoo (2) 
> unpaused.



Thanks for the possible answers :)



Stefan
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