Re: [Xen-devel] Xen-4.0.x doesn't start on 32bit

[Bastian Blank <waldi@xxxxxxxxxx>]

On Mon, Aug 16, 2010 at 12:15:41PM +0200, Stefan Kuhne wrote:
> i start an new Thread because of the old one is a little bit messy.
> I try to get xen-4.0.x running on a Dell R310 with Core i3 CPU ind 32Bit.
> I tried Ubuntu-10.04 Server in 32bit and 64bit.
> I use on both Systems the same scripts with code from Wiki:
> apt-get install ...
> hg clone (from ML)

You use the staging tree?

> make install
> 
> On 64bit system boots until mount of rootfs.
> But 32bit boots until:
> (XEN) d0:v0: unhandled page fault (ec=0009)
> (XEN) Pagetable walk from c009fc00:
> (XEN)  L3[0x003] = 0000000039820001 00001820
> (XEN)  L2[0x000] = 0000000039fdd067 00001fdd
> (XEN)  L1[0x09f] = 000007fffffff063 ffffffff
> (XEN) d0:v0: reserved bit in page table (ec=0009)
> 
> Is anybody running an 32bit System?

Debian Squeeze works flawless:
| # xm info
| [...]
| release                : 2.6.32-5-xen-686
| version                : #1 SMP Fri Aug 6 05:44:58 UTC 2010
| machine                : i686
| [...]
| max_node_id            : 0
| xen_major              : 4
| xen_minor              : 0
| xen_extra              : .1-rc5
| xen_caps               : xen-3.0-x86_32p 
| xen_scheduler          : credit
| xen_pagesize           : 4096
| platform_params        : virt_start=0xf5800000
| [...]

> I need 32bit because of my destination Distro is only in 32bit available.

And? 64bit kernel with 32bit userspace is usually no problem.

> (XEN) d0:v0: unhandled page fault (ec=0009)
> (XEN) Pagetable walk from c009fc00:
> (XEN)  L3[0x003] = 0000000039820001 00001820
> (XEN)  L2[0x000] = 0000000039fdd067 00001fdd
> (XEN)  L1[0x09f] = 000007fffffff063 ffffffff

This entry looks weird.

> (XEN) d0:v0: reserved bit in page table (ec=0009)
> (XEN) Pagetable walk from c009fc00:
> (XEN)  L3[0x003] = 0000000039820001 00001820
> (XEN)  L2[0x000] = 0000000039fdd067 00001fdd
> (XEN)  L1[0x09f] = 000007fffffff063 ffffffff
> (XEN) ----[ Xen-4.0.1-rc6  x86_32p  debug=n  Tainted:    C ]----

Ah, finally the information that this is a 32bit hypervisor.

Bastian

-- 
I'm a soldier, not a diplomat.  I can only tell the truth.
                -- Kirk, "Errand of Mercy", stardate 3198.9

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