RE: [Xen-ia64-devel] [patch] increase xen-heap-size basedon nodes-shift

["Zhang, Xing Z" <xing.z.zhang@xxxxxxxxx>]

>>
>>    Unfortunately it breaks VTi domains somehow.  My system hangs when
I
>> try to xm create one.  Thanks,
>
>Thats bizarre given it's a simple heap increase. However I cannot help
>debug this right now as I don't have a box with VT to play with right
>now.
>
[Zhang, Xing Z] 
Hi Sorensen, I have some comments on this patch. I noticed you increase
xen heap to 256M. But current xen heap is 64M TR mapped ( use
KERNEL_TR_PAGE_SHIFT macro in xen/arch/linux-xen/head.S). So Xen has
256M heap but 64M TR mapping area with your patch, this should be reason
why VTI hang. Not only VTI, I think XenU has same issue because struct
vcpu located in xen heap and it must be TR mapped.
Maybe boot more XenU guests will show the issue. 

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