Re: [Xen-devel] Anybody debugging PAE guest kernels?

[Luke Crawford <lsc@xxxxxxxxx>]

You want to talk to Kip Macy;  I've done a little bit with 
freebsd7 domus, (essentially, I have hacked makefiles to make Kip Macy's 
stuff compile with -current of a few weeks ago instead of -current of a 
few months ago) but I am lacking in both skill and time, so I probably 
can not help you much.
I don't know of anyone working with FreeBSD on Xen PAE, though.

On Wed, 4 Oct 2006, Randy Thelen wrote:

> Date: Wed, 4 Oct 2006 16:53:39 -0700
> From: Randy Thelen <rthelen@xxxxxxxxxx>
> To: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
> Subject: [Xen-devel] Anybody debugging PAE guest kernels?
>
> Folks --
>
> I'm porting FreeBSD to support PAE on xen-unstable.  (Is anybody else doing 
> this?)  The kernel image I have properly communicates to Xend that the kernel 
> is PAE aware and supports [extended-cr3] semantics (which I now fully 
> understand; thanks Keir!).
> My kernel gets loaded into guest memory and I attach gdbserver-xen to it.  So 
> far so good.  I can view registers, I can step, I can look at global and 
> local registers.  All is good.
> But, if I attempt to modify memory, e.g., setting a break point, XEN coughs 
> up an error:
> (XEN) DOM0: (file=mm.c, line=1750) Bad type (saw 2e000001 != exp e0000000) 
> for mfn fa693 (pfn 572)
> (XEN) DOM0: (file=mm.c, line=618) Error getting mfn fa693 (pfn 572) from L1 
> entry 00000000fa693027 for dom7
> Is anybody doing this?  Or, am I out here alone ... again?
>
> Xen version 3.0-unstable (root@xxxxxxxxxxxxxx) (gcc version 4.0.3 (Ubuntu 
> 4.0.3-1ubuntu5)) Mon Aug 28 17:24:36 PDT 2006
> Latest ChangeSet: Thu Aug 24 01:49:41 2006 +0100 11249:1ff4cc298bec
>
> (I'm going to update my hg repository, but I still have the question about 
> anybody else using gdbserver w/ PAE guests.)
> -- Randy
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel