RE: [Xen-devel] can't create any more pv-on-hvm domains after~38under 3.3-testing

["James Harper" <james.harper@xxxxxxxxxxxxxxxx>]

> On 05/12/2008 10:16, "Keir Fraser" <keir.fraser@xxxxxxxxxxxxx> wrote:
> 
> > On 05/12/2008 09:35, "James Harper" <james.harper@xxxxxxxxxxxxxxxx>
> wrote:
> >
> >> I wonder if it's possible that some Debian code is left around
> somewhere
> >> on my machine... any suggestions for where that could be that would
> >> cause a problem with Xen? It just seems to me that this problem is
> >> severe enough that if it really was a problem with Xen and not my
setup
> >> that others would have noticed it too...
> >
> > Well you run your own kernel and toolstack. I think it's pretty
unlikely
> > that some Debian thing is still getting in there.
> >
> > I'll try 3.3 again, just to double check I don't see any weirdness.
By
> the
> > way, I build my dom0 kernel using the -xen0 built-in config, not
-xen.
> Not
> > sure if that would make a difference. Probably not.
> 
> I had another quick go with tip of xen-3.3-testing and it worked okay
for
> me. 64b Xen, 32b -xen0 dom0, fresh 32b tools install, HVM domU (only
> booted
> as far as bootloader, then destroyed). Intel P4-era hardware.
> 

Once I reach that limit, any new domain created gives me "Cannot handle
page request order 0" from Xen, presumably from xen/common/page_alloc.c
in the alloc_xenheap_pages function.

'xm debug H' says:

(XEN) 'H' pressed -> dumping heap info (now-0x9AED:61D9500A)
(XEN) heap[node=0][zone=0] -> 17 pages
(XEN) heap[node=0][zone=1] -> 0 pages
(XEN) heap[node=0][zone=2] -> 0 pages
(XEN) heap[node=0][zone=3] -> 0 pages
(XEN) heap[node=0][zone=4] -> 0 pages
(XEN) heap[node=0][zone=5] -> 0 pages
(XEN) heap[node=0][zone=6] -> 0 pages
(XEN) heap[node=0][zone=7] -> 0 pages
(XEN) heap[node=0][zone=8] -> 0 pages
(XEN) heap[node=0][zone=9] -> 0 pages
(XEN) heap[node=0][zone=10] -> 0 pages
(XEN) heap[node=0][zone=11] -> 0 pages
(XEN) heap[node=0][zone=12] -> 0 pages
(XEN) heap[node=0][zone=13] -> 0 pages
(XEN) heap[node=0][zone=14] -> 16120 pages
(XEN) heap[node=0][zone=15] -> 32768 pages
(XEN) heap[node=0][zone=16] -> 65536 pages
(XEN) heap[node=0][zone=17] -> 131072 pages
(XEN) heap[node=0][zone=18] -> 262144 pages
(XEN) heap[node=0][zone=19] -> 388992 pages
(XEN) heap[node=0][zone=20] -> 773270 pages
(XEN) heap[node=0][zone=21] -> 0 pages
(XEN) heap[node=0][zone=22] -> 0 pages
(XEN) heap[node=0][zone=23] -> 0 pages
(XEN) heap[node=0][zone=24] -> 0 pages
(XEN) heap[node=0][zone=25] -> 0 pages
(XEN) heap[node=0][zone=26] -> 0 pages
(XEN) heap[node=0][zone=27] -> 0 pages
(XEN) heap[node=0][zone=28] -> 0 pages
(XEN) heap[node=0][zone=29] -> 0 pages
(XEN) heap[node=0][zone=30] -> 0 pages
(XEN) heap[node=0][zone=31] -> 0 pages
(XEN) heap[node=0][zone=32] -> 0 pages
(XEN) heap[node=0][zone=33] -> 0 pages
(XEN) heap[node=0][zone=34] -> 0 pages
(XEN) heap[node=0][zone=35] -> 0 pages
(XEN) heap[node=0][zone=36] -> 0 pages
(XEN) heap[node=0][zone=37] -> 0 pages
(XEN) heap[node=0][zone=38] -> 0 pages
(XEN) heap[node=0][zone=39] -> 0 pages

But that doesn't mean anything to me, unless each 'zone' is actually a
domain?

James


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