[Xen-devel] Re: problems with console in domU if physdev access enabled

[Daniel Heemann <daniel.heemann@xxxxxx>]

Maurice Meeden <tux <at> gmx.info> writes:  
> I am trying to build a working domU kernel with CONFIG_XEN_PHYSDEV_ACCESS=y.  
But  
> if this enabled, domU fails to boot with different errors about the console.  
> With kernel 2.6.10 and xen 2.0.5 this error occurs if I try to start the  
Domain:  
> ..  
> WARNING: Failed to register Xen virtual console driver as 'tty1'  
> ..  
> Warning: unable to open an initial console.  
> Unable to handle kernel NULL pointer dereference at virtual address 00000000  
>  printing eip:  
... 
 
> With 2.0-testing (snapshot from yesterday) there is no output if I try to  
start  
> the domain:  
> Using config file "tty.cfg".  
> Started domain ttylinux, console on port 9608  
> ************ REMOTE CONSOLE: CTRL-] TO QUIT ********  
>   
... 
 
> Is here anybody who has xen running with physdev acces in one of the domU's?  
Or  
> is there anything what must make different when physdev-access is enabled?  
  
  
Is there any update on this problem?  
I can confirm both problems (stable and testing), also on a gentoo system.  
Running the dom0 kernel and a domU kernel w/o setting CONFIG_XEN_PHYSDEV=y  
seems to work fine.  
  
Regards  
Daniel  
  


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