RE: [Xen-devel] dom0 kernel crashes with kernel panic during boot

[Jan Kundrat <jan.kundrat@xxxxxx>]

> > have other problem - is it possible to share one serial port 
> > between grub, xen itself and dom0?
> 
> The easiest way to do this is to simply not build a hardware serial
> driver into dom0, but use the ttyS0 driver provided by the xen console
> driver.
> 
> Just add "com1=115200,8n1" to your Xen command line, then your grub and
> dom0 setups should work fine.
>

ok, I'll try it. Thanks for your help.
 
> Alternatively, you could have dom0 drive the serial line directly, but
> you'll have to tell the xencons driver in dom0 not to grab the ttyS
> name, using "xencons=off".
> 
> One for the FAQ...
> 
> Ian
>  
> > It panics also if I use
> > 
> > kernel (hd0,0)/xen.gz dom0_mem=32768
> > module (hd0,0)/vmlinuz-2.6.9-xen0 root=/dev/hda3 ro 
> > console=ttyS0,115200
> > 
> > my grub.conf contains
> > 
> > serial --unit=0 --speed=115200
> > terminal serial console
> > 
> > the (stripped) message is:
> > 
> > devfs: 2004-01-31 Richard Gooch (rgooch@xxxxxxxxxxxxx)
> > devfs: boot_options: 0x1
> > Limiting direct PCI/PCI transfers.
> > serio: i8042 AUX port at 0x60,0x64 irq 12
> > serio: i8042 KBD port at 0x60,0x64 irq 1
> > Serial: 8250/16550 driver $Revision: 1.90 $ 6 ports, IRQ 
> > sharing disabled ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A HP 
> > CISS Driver (v 2.6.2) pcnet32.c:v1.30i 06.28.2004 
> > tsbogend@xxxxxxxxxxxxxxxx Kernel panic - not syncing: 
> > Couldn't register Xen virtual console driver as ttyS
> > 
> > 
> > -- 
> > Jan Kundrat
> > jan.kundrat@xxxxxx
> > 
> > 
> > 
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> 

-- 
Jan Kundrat
jan.kundrat@xxxxxx



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