RE: [Xen-devel] High-load Domain0 cause guest domian panic.

[Hidetoshi Nishi <nishi.hidetoshi@xxxxxxxxxxxxxx>]

　Hi Keir-san, Simon-san
　
　Thank you for your replies.
　
　I think although we set timer be longer, guest domain will mount        
  the sysroot in init sequence of initrd before xenbus state be           
  connected.
　
　Then we need the way to make init sequence be stayed until 
　the device is ready, I think.
　
　
　Thank you.                                   Nishi
    
    
>Unfortunately, the time required seems to be very variable and (Dom0) load 
>dependant.
> 
>When I saw this, the problem was that vif & vbd hot plug in Dom0 were 
>serialized and sometimes vif hot-plug was taking a really long time; I 
>wonder if we need to find a way to not start the timeout for a device until
> hot plug actually starts in dom0?
> 
>Simon
>
>________________________________
>
>From: Keir Fraser [mailto:Keir.Fraser@xxxxxxxxxxxx]
>Sent: Wed 18/04/2007 9:08 AM
>To: Graham, Simon; Hidetoshi Nishi; xen-devel@xxxxxxxxxxxxxxxxxxx
>Subject: Re: [Xen-devel] High-load Domain0 cause guest domian panic.
>
>
>The domU kernel will already wait for all devices it discovers to enter 
>connected state. If that timeout's not long enough we could make it longer,
> or configurable on the domU command line.
>
> -- Keir
>
>On 18/4/07 13:31, "Graham, Simon" <Simon.Graham@xxxxxxxxxxx> wrote:
>
>
>
>       See http://lists.xensource.com/archives/html/xen-devel/2006-12/
msg00136.
>html for some discussion on this - no resolution though.
>       
>       Simon
>       
>       
>________________________________
>
>       From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx on behalf of Hidetoshi 
Nishi
>       Sent: Tue 17/04/2007 8:53 AM
>       To: xen-devel@xxxxxxxxxxxxxxxxxxx
>       Subject: [Xen-devel] High-load Domain0 cause guest domian panic.
>       
>       
>       
>       Hi all.
>       
>       Currently we are investigating guest domain panic.
>       
>       When guest domain whose root disk is VBD is created,
>       domain0 with high-load gets late to initiate the
>       back-end driver. And guest domain can not mount
>       his root file system and goes into panic.
>       
>       We think domain initial sequence have to wait to be ready
>       of special device(root disk, etc).
>       And we should be able to specify special device in config file.
>       
>       Do you have any idea ?
>       
>       
>       Thank you.                    Nishi
>       
>       
>       
>       
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