Hi guys,
I've got the same problem. Following recommendations above I added serial
stuff on dom0 to blacklist.
In /etc/xen/vm/vm2 file I added irq and ioports section. I added 8250 and
serial_core and rebuild the kernel on domU. When vm get loaded there is no
word about serial in dmesg output. On the other side there are /dev/ttyS0
to ttyS7 on dom0
Have I missed something?
Thanks,
Artiom
 
shacky wrote:
>
>> What's about /dev/ttyS* in dom0? If any ttyS* exists in dom0 you cannot
>> use it in domU. You must disable all serial port modules like "8250" or
>> "serial_core".
>
> I disabled that modules and they are not loded. In reality they was
> not loaded neither before blacklisting them. I think the kernel was
> compiled with the serial support built in it..
>
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