Re: Without Xorg, runs OK. But Xorg also runs.(Re: Two DOMU's hang on amd64

[Jean-Yves Migeon <jeanyves.migeon%free.fr@localhost>]

On 10.05.2010 17:16, Makoto Fujiwara wrote:
> Strange enough, I did setup xen to serial console, and login from
> the VGA PC screen.  Then start screen(1). Now start the first DOMU
> as 5.0_STABLE. Get another screen. and create another DOMU as
> 5.99.29 sysinst. Sysinst all done. and rebooted with regular DOMU
> kernel. Everything went smoothly.
>
> Now disconnect from the screen and I have started xdm (sudo xdm).
> And login now. Everything goes well. WHAT ?
> -------
> modena@makoto 00:11:17/100511(~)% sudo xm list
> /usr/pkg/lib/python2.6/site-packages/xen/util/acmpolicy.py:20: 
> DeprecationWarning: the sha module is deprecated; use the hashlib module instead
>    import sha
> Name                                        ID   Mem VCPUs      State   Time(s)
> Domain-0                                     0  1024     1     r-----     30.3
> netbsd-5.0_STABLE                            1  1024     1     -b----     24.4
> netbsd-HEAD                                  4   512     1     -b----      3.6
> -------
>
> Not directly related topic:
> By the way, the manpage of boot.cfg(5), it says once,
> ------
>     menu=Boot with serial console:consdev com0;boot
> ------
> but later in the example:
> ------
>   menu=Boot Xen with 256MB for dom0 (serial):load /netbsd-XEN3_DOM0 console=com0
> ------
> This console= should read consdev, I believe.

Nope, the Xen command line uses "console=". See:

http://nxr.netbsd.org/xref/src/sys/arch/xen/xen/xen_machdep.c#175

Anyway, I am not quite sure that the "load" keyword that loads NetBSD as 
a module for Xen passes the command line args down to the it; they seem 
to be ignored (and superfluous). To alter console device, I would rather 
expect:

menu=Boot Xen:consdev com0; load /netbsd-XEN3_DOM0; multiboot /xen.gz 
dom0_mem=256M console=com1 com1=115200,8n1

I'll proof-read what I said and fix boot.cfg(5) accordingly.

> I have now the line as
> ------
> menu=Boot Xen with 1GB for dom0 (serial):load /netbsd-XEN3_DOM0 consdev=com0 
> com0=115200,8n1; multiboot /xen.gz
> ------
> in /boot.cfg for this test.
>
> The main difference between HUNG and GOOD are:
> Using xterm->luit->console for DOMU, or NOT.
> shall I attach later ?

Probably. This is a workaround anyway, I believe that something goes bad 
with Xen and Xorg.

What driver are you using? ("Driver" in the Section Device associated to 
your graphic card in xorg.conf, or $ grep Driver /var/log/Xorg.0.log )

--
Jean-Yves Migeon
jeanyves.migeon%free.fr@localhost