Re: [Xen-devel] XENBUS: Waiting for devices to initialise

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

On Sun, Jun 27, 2010 at 03:31:31PM +0100, John Morrison wrote:
> Hi,
> 
> We have many dom0's working fine, but recently we are seeing a large number 
> of cases when rebooting a domU results in:-
> 
> XENBUS: Waiting for devices to initialise: 
> 295s...290s...285s...280s...275s...270s...265s...260s...255s...250s...245s...240s...235s...230s...225s...220s...215s...210s...205s...200s...195s...190s...185s...180s...175s...170s...165s...160s...155s...150s...145s...140s...135s...130s...125s...120s...115s...110s...105s...100s...95s...90s...85s...80s...75s...70s...65s...60s...55s...50s...45s...40s...35s...30s...25s...20s...15s...10s...5s...0s...

Look what are connected and which ones aren't. The ones that are not
connected are the source of the fault.

> 
> [2010-06-27 15:21:53 11418] DEBUG (XendDomainInfo:1709) 
> XendDomainInfo.handleShutdownWatch
> [2010-06-27 15:21:53 11418] DEBUG (DevController:139) Waiting for devices vif.
> [2010-06-27 15:21:53 11418] DEBUG (DevController:144) Waiting for 0.

> [2010-06-27 15:21:53 11418] DEBUG (DevController:629) hotplugStatusCallback 
> /local/domain/0/backend/vif/142/0/hotplug-status.
> [2010-06-27 15:22:30 11418] INFO (XendDomain:1182) Domain hub (142) unpaused.
> [2010-06-27 15:27:32 11418] WARNING (XendDomainInfo:1886) Domain has crashed: 
> name=hub id=142.
> [2010-06-27 15:27:32 11418] DEBUG (XendDomainInfo:2732) 
> XendDomainInfo.destroy: domid=142
> [2010-06-27 15:27:32 11418] DEBUG (XendDomainInfo:2207) Destroying device 
> model
> 
> xm create test results in the domU being started in a paused state, xm 
> unpause test gives the above error.
> 
> Rebooting dom0 fixes the issue - the problem being this brings down 15 domU's 
> as well !
> These dom0's have been up for about 160 days without issues.
> 
> Any pointers ?
> 
> Thanks
> 
> John
> 
> 
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