Re: [Xen-users] hvm boot causing dom0 to crash

[Mark Chaney <macscr@xxxxxxxxxx>]

Nothing had changed on the dom0 that I know of. Other guests on running 
on that dom0 fine and its stable. Nothing happens until I try starting 
that hvm. As far as the HVM, I had run aptitude update/upgrade on it, 
but it the day before, but I had done that with the other debian hvm on 
the other dom0 and its not having issues. =/
- Mark

On 07/20/2010 07:30 AM, Pasi Kärkkäinen wrote:
> On Tue, Jul 20, 2010 at 03:27:47AM -0500, Mark Chaney wrote:
>    
> > I am running Xen 3.4.3 on CentOS 5.5 x86_64, with kernel 2.6.18-194.8.1.el5xen. 
> > My fully virtualized guest (HVM) is running Debian 5 with kernel 2.6.33 x86_64. 
> > The debian guest had been running for over 10 days with no issues until i 
> > rebooted it. Now every time i try to start up the guest, the entire dom0 
> > crashes and reboots. Whats odd is that I have a very similar debian guest (used 
> > the same appliance iso) running on another dom0 that is not having these same 
> > issues. They are at two different locations, so I cant easily test the 
> > troublesome guest on a different dom0 and vice versa. This last time i tried to 
> > start the guest it seemed to go almost through the boot processes, but then 
> > suddenly rebooted the guest and it got all the way to the starting firewall 
> > part before it crashed the dom0.
> >
> > Below if the guests cfg if it helps:
> >
> > name = "mailcleaner_ent_mx2"
> > maxmem = 4096
> > memory = 1024
> > vcpus = 2
> > builder = "hvm"
> > kernel = "/usr/lib/xen/boot/hvmloader"
> > boot = "c"
> > pae = 1
> > acpi = 1
> > apic = 1
> > localtime = 0
> > on_poweroff = "destroy"
> > on_reboot = "restart"
> > on_crash = "restart"
> > device_model = "/usr/lib64/xen/bin/qemu-dm"
> > vfb = [ "type=vnc,vncunused=1,keymap=en-us" ]
> > disk = [ "phy:/dev/VolGroup00/mailcleaner_ent_mx2,hda,w", ",hdc:cdrom,r" ]
> > vif = [ "mac=00:16:36:47:cc:e3,bridge=eth0,script=vif-bridge,vifname=vif-1.0" ]
> > parallel = "none"
> > serial = "pty"
> >
> >
> > Any ideas on what I should be looking for? I really need to get this guest back 
> > up ASAP as its the secondary mx mail server that im testing and it has some 
> > email on it already that I need to deliver to my test accounts.
> >
> >      
> Did you change something in the guest when it started crashing? Or something in 
> the dom0?
> Are you sure your hardware is OK ?
>
> A guest should never crash host/hypervisor/dom0..
>
> -- Pasi
>
>
>    
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