RE: [Xen-devel] most of qcow images cannot boot since c/s 16958.

["You, Yongkang" <yongkang.you@xxxxxxxxx>]

On Sunday, February 03, 2008 6:30 PM, "Keir Fraser" wrote:

Hi Keir and Haicheng,

I found this issue might be caused by 16947. 
(http://xenbits.xensource.com/xen-unstable.hg?rev/32b898768217)

After revert 16947 and rebuild the qemu-dm, HVM domains can boot up 
successfully. 

> You'll have to selectively remove changesets. A good starting point
> would be:
>  hg update 16955
>  hg export 16954 | patch -Rp1
>  hg export 16949 | patch -Rp1
>  hg export 16946 | patch -Rp1
> 
> ...and see if you can reproduce the problem. If you can, it is one of
> changesets 16947, 16948, 16950, 16951, 16952, 16953, 16955. Otherwise
> it is one of 16946, 16949, 16954, 16956, 16957, 16958.
> 
>  -- Keir
> 
> On 3/2/08 09:08, "Li, Haicheng" <haicheng.li@xxxxxxxxx> wrote:
> 
>> Thanks for the quick response. I have tried to locate the exact
>> changeset, but from c/s 16946 to c/s 16957, most of them cannot get
>> tools compiled successfully. To help us better track this issue, I
>> filed a bug in bugzilla:
>> http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1161. 
>> 
>> 
>> -- haicheng
>> 
>> -----Original Message-----
>> From: Keir Fraser [mailto:Keir.Fraser@xxxxxxxxxxxx]
>> Sent: 2008年2月3日 16:54
>> To: Li, Haicheng; xen-devel
>> Subject: Re: [Xen-devel] most of qcow images cannot boot since c/s
>> 16958. 
>> 
>> I'm not sure what causes that. Hanging 'xm destroy' is because
>> qemu-dm is 
>> now killed by SIGTERM rather than SIGKILL. I think that was a
>> mistake to change, so I'll probably revert that. But it doesn't
>> explain why your 
>> qemu-dm went bad in the first place. I think you will have to work
>> out exactly which changeset caused the problem.
>> 
>>  -- Keir
>> 
>> On 3/2/08 07:48, "Li, Haicheng" <haicheng.li@xxxxxxxxx> wrote:
>> 
>>> Hi all,
>>> 
>>> We found since c/s 16958, most of our qcow images will hang on
>>> boot; xm dmesg shows: (XEN) HVM3: int13_harddisk: function 41,
>>> unmapped device for ELDL=81 (XEN) HVM3: int13_harddisk: function
>>> 08, unmapped device for ELDL=81 (XEN) HVM3: *** int 15h function
>>> AX=00C0, BX=0000 not yet supported! 
>>> 
>>> When this hang happens, "xm destroy" command cannot destroy that
>>> domain any more; and xend will lose response after running "xm
>>> destroy" until this qemu process is killed by "kill -9".
>>> 
>>> This issue blocks our testing. And c/s 16945 has no such issue.
>>> 
>>> Detailed xm dmesg log is attached.
>>> 



Best Regards,
Yongkang You

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