Re: [Xen-devel] VMX status report. Xen: #17304 & Xen0: #496 -- no new issue

[Keir Fraser <keir.fraser@xxxxxxxxxxxxx>]

On 28/3/08 13:37, "Li, Haicheng" <haicheng.li@xxxxxxxxx> wrote:

> 1. Hvm guest with generic kernel 2.6.18 cannot boot up,  the serial log
> shows "io.c:198:d1 MMIO emulation failed @ 0060:c01af276: 0f 6f 06 0f 6f
> 4e". http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1196.

Can you provide the vmlinux file for this kernel, or otherwise find out what
code is at address 0xc01af276 in that kernel. Either we are emulating
something we should not emulate, or the kernel really is accessing I/O
memory with SSE instructions, and we'll need to emulate them.

> 2. on RHEL5.1, "insmod balloon.ko" shows error as below:
> 
> Xen version 3.3.
> Hypercall area is 1 pages.
> xen_mem: Initialising balloon driver.
> kobject_add failed for memory with -EEXIST, don't try to register things
> with the same name in the same directory.

Does RHEL5.1 already have a directory /sys/devices/system/memory/? If so
what is under there? Could you 'ls -lR' that directory and send us the
output?

I don't think anyone actually uses our balloon driver sysfs interface, so we
could just rename it to something a bit more Xen-specific.

 Thanks,
 Keir



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