Subject: Re: port-xen/33093: dom0 reboots when domU destroyed in non-shutdown state
To: Jason White <jdwhite@jdwhite.org>
From: Manuel Bouyer <bouyer@antioche.eu.org>
List: port-xen
Date: 03/17/2006 15:53:33
On Fri, Mar 17, 2006 at 05:22:31AM -0600, Jason White wrote:
> Greetings,
>   I've stumbled across a problem with a domU and an exported PCI USB 
> controller with xen 2.0, xentools 2.0.7, dom0 and domU running netbsd 3.0.  
> When exporting this device to the domU, if I do a 'xm destroy <id>' and the 
> domU isn't halted, dom0 hangs and reboots after about 10 seconds with no 
> error messages.
> 
>[...]
> Grub config:
> default=0
> timeout=10
> serial --unit=0 --speed=38400 --word=8 --parity=no --stop=1
> terminal --timeout=10 serial console
> title Xen 2.0 / NetBSD (hda0, serial)
>   root(hd0,0)
>   kernel (hd0,f)/xen.gz dom0_mem=65536 com1=38400,8n1 physdev_dom0_hide='(00:07.2)'

You don't see any message from either the dom0 kernel or Xen on
the serial console when this happens ? That's very stange and suggests that
the reboot is not caused by software. Myabe the PCI device manages to
send a hardware reset to the CPU ...

-- 
Manuel Bouyer <bouyer@antioche.eu.org>
     NetBSD: 26 ans d'experience feront toujours la difference
--