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

[Tristan Gingold <tgingold@xxxxxxx>]

On Sat, Jun 16, 2007 at 02:23:21PM +0800, Zhang, Xing Z wrote:
> >>
> >>    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. 
This is certainly the reason of the crash!

Tristan.

_______________________________________________
Xen-ia64-devel mailing list
Xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-ia64-devel