Re: [fedora-virt] [Fedora-xen] Reminder: Fedora 17 virt test day going on right now!

[M A Young]

On Fri, 4 May 2012, Konrad Rzeszutek Wilk wrote:

>  On Fri, May 04, 2012 at 09:36:49AM -0400, Gordon McLellan wrote:
> > 
> > I'm going to buy a serial card for this machine so I can do the serial
> > console on Xen and get more information. But so far, so good!
>
>  You can try to do (on Xen) 'console=vga  vga=text-80x50 guest_loglvl=all loglvl=all
> noreboot"
>  and on the Linux command line: "console=hvc0 earlyprintk=xen loglevel=8 debug
> radeon.modeset=0 radeon.modeset=0"
>
>  That should give you some idea where it is crashing and take a photo. 
If you are capturing logging with a photo, it can be helpful to add a 
boot_delay parameter eg. boot_delay=100 to the kernel line, particularly 
if the interesting lines scroll off the top of the screen before you can 
capture them. It does slow the boot down considerably though so you may 
need to adjust the parameter to get the balance right between it being 
slow enough to capture without taking ages to get to the crash.

 	Michael Young