On 16/12/2010 11:24, "ZhouPeng" <
zpengxen@xxxxxxxxx> wrote:
> Thank you for your reply.
>
> We want to work in 32-bit system.
> And fortunately we don't need IOMMU and passthr at the present.
>
> There is another problem:
> xend start failed
> err msg is:
> xen.lowlevel.xc.Error: (1, "Internal error"), 'Could not obtain handle on
> privileged command interface (2 = No such file or directory)'
>
> I find there is nothing in "/proc/xen/" but there is privcmd.o in
> "bulid-linux-2.6-pvos_x86_32/drivers/xen/xenfs/"
>
> 2010/12/16 Keir Fraser <
keir@xxxxxxx>
>> Could you build a 64-bit hypervisor instead? In all honesty, the 32-bit
>> build gets hardly any testing these days, and not much love.
>>
>> -- Keir
>>
>> On 16/12/2010 09:41, "ZhouPeng" <
zpengxen@xxxxxxxxx> wrote:
>>
>>> The bug exist in iommu(Intel VT-d) support code.
>>>
>>> After I disabled the vt-d in bios, system can boot properly.
>>>
>>> 2010/12/16 ZhouPeng <
zpengxen@xxxxxxxxx>
>>>> The err msg appears in
>>>> void *map_domain_page(unsigned long mfn)
>>>> BUG_ON(idx >= MAPCACHE_ENTRIES);
>>>>
>>>> printk idx is 1024 and BUG_ON is called.
>>>>
>>>> I print Xen call trace msg:
>>>>
>>>> [<ffcd3c2>] map_domain_page+0x1a2/0x230
>>>> [<ff1cd718>] unmap_domain_page+0x148/0x160
>>>> addr_to_dma_page_maddr+0x1f6/0x250
>>>> __find_next_zero_bit+0x80/0x90
>>>> intel_iommu_map_page+0x14a/0x250
>>>> domain_context_mapping+0x14a/0x250
>>>> rmrr_identity_mapping+0xb7/0x120
>>>> intel_iommu_dom0_init+0x143/0x1eb
>>>> construct_dom0+0x138f/0x16b0
>>>> __start_xen+0x109a/0x1680
>>>> e820nf+0x0/0x4
>>>> __high_start+0x58/0x5a
>>>>
>>>> 2010/12/16 Pasi Kärkkäinen <
pasik@xxxxxx>
>>>>
>>>>> On Thu, Dec 16, 2010 at 03:41:17PM +0800, ZhouPeng wrote:
>>>>>> (XEN) Panic on CPU 0:
>>>>>> (XEN) Xen BUG at domain_page.c:102
>>>>>>
>>>>>> Any solutions?
>>>>>>
>>>>>
>>>>> You need to post the full boot log, including all output from both Xen and
>>>>> dom0 Linux.
>>>>> See:
http://wiki.xen.org/xenwiki/XenSerialConsole
>>>>>
>>>>> -- Pasi
>>>>>
>>>>>> 2010/12/16 ZhouPeng <[1]
zpengxen@xxxxxxxxx>
>>>>>>
>>>>>> Hi all,
>>>>>>
>>>>>> I build xen4.1 from the tarbll (with kernel 2.6.32.26 downloaded by
>>>>>> default) on fedora8.
>>>>>>
>>>>>> After installing, I get the err msg on startup:
>>>>>>
>>>>>> (XEN) Panic on CPU 0:
>>>>>> (XEN) Xen BUG at domain_page.c:102
>>>>>>
>>>>>> 5 seconds later, the machine reboot.
>>>>>>
>>>>>> How to deal with this problem.
>>>>>>
>>>>>> Thanks,
>>>>>> --
>>>>>> Zhou Peng
>>>>>> My daily E-Mail: [2]
ailvpeng25@xxxxxxxxx
>>>>>>
>>>>>> --
>>>>>> Zhou Peng
>>>>>> My daily E-Mail: [3]
ailvpeng25@xxxxxxxxx
>>>>>>
>>>>>> References
>>>>>>
>>>>>> Visible links
>>>>>> 1. mailto:
zpengxen@xxxxxxxxx
>>>>>> 2. mailto:
ailvpeng25@xxxxxxxxx
>>>>>> 3. mailto:
ailvpeng25@xxxxxxxxx
>>>>>
>>>>>> _______________________________________________
>>>>>> Xen-devel mailing list
>>>>>>
Xen-devel@xxxxxxxxxxxxxxxxxxx
>>>>>>
http://lists.xensource.com/xen-devel
>>>>>
>>>>
>>>>
>>
>>
>
>
