Re: one out of four existing kvm guest's not starting after system upgrade

[Jan Kiszka <jan.kiszka@web.de>]

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On 2012-02-19 21:13, Thomas Fjellstrom wrote:
> I'm pretty much stumped on this. So I decided to try re-creating the vm 
> through virt-manager. Its up and running now. The only to major differences I 
> can see in the old and new config is the machine (-M pc-0.12 vs -M pc-1.0) 
> parameter, and the uuid. The rest of the parameters I played with a lot trying 
> to get it to work by starting up the vm manually from the cli. I can't really 
> see how those two changes would do much of anything considering the other 
> three VM's still are configured to use -M pc-0.12, and they work fine.
> 

To pick up this topic again: The trace contains no clear indication what
is going on. Now I'm trying to understand what works and what not.
Please correct / extend as required:

 - qemu-kvm-0.12 problematic-vm.img		[OK]
 - qemu-kvm-1.0 -M pc-0.12 problematic-vm.img	[HANG]
 - qemu-kvm-1.0 -M pc-1.0 problematic-vm.img	[OK]

In all cases, the image is the same, never reinstalled?

BTW, what is your guest again? What is your VM configuration?

That IOCTL error messages you find in the kernel log likely relate to
direct cdrom access from the qemu process. Do you pass a host drive through?

Jan


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