Re: [Xen-users] DomU sees only 512MB RAM with PCI-passthrough

[Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>]

On Sun, May 26, 2013 at 12:59:56PM +0200, Christian Holpert wrote:
> At 20:31 25.05.2013, Konrad Rzeszutek Wilk wrote:
> >For the earlyprintk=xen just add it along with the xencons_...
> 
> I needed to recompile xen first with debug flag set. Now I get
> results from earlyprintk.
> 
> Please find attached:
> xl_dmesg_512:  domU (32bit) booting fine with memory = 512
> xl_dmesg_2048: domU (32bit) silently crashing with memory = 2048
> Both tests with your patch active and no other changes in between.

Is your kernel compiled with CONFIG_NUMA ? can you try without it?

> 
> Log shows
> BUG: unable to handle kernel NULL pointer dereference at   (null)
> and oopses out.
> 
> xl list does not show the process. ps shows that the corresponding
> qemu-system-i386 process is still alive and has to be killed
> manually.
> 
> Thanks for working on this and enjoy your weekend,
> Christian
> 
> -- 
> Markt-Apotheke Christian Holpert e.K., Mömbris
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