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Re: [Xen-devel] Bug: Limitation of <=2GB RAM in domU persists with 4.3.0



On Wed, 24 Jul 2013 12:06:39 -0400, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> wrote:

>Are you also able to get the serial log from the guest? (IF this is
>Linux?) I usually have this in my guest config:
>
>serial='pty'
>
>and when Linux boots up I add 'console=ttyS0,115200 loglevel=8 debug'
>which will output everything to the 'xl console <guest> | tee
>/tmp/log'.

The intended guest is XP64. I will, however, get a Linux guest up

Ah, I am not actually sure how Linux will work. I hadn't had a chance
to test that recently :-(

As long as it brings up the serial console, that should be
sufficient, but working VNC to text console login would be
convenient. The main thing I want to find on it is the
BAR mapping addresses from lspci and compare that to the
e820 map from dmesg.

I wouldn't expect the memory map provided by SeaBIOS and
the BAR mappings configured by qemu-dm to differ
depending on the domU OS. Or am I wrong here?

If there is any overlap, the problem should be obvious.
If there is no overlap, then something even more
bizzare is going on, but we can worry about that
later. :)

Gordan

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