Re: [Xen-devel] Help booting Xen under RHEL6 beta2

[Keir Fraser <keir.fraser@xxxxxxxxxxxxx>]

On 12/07/2010 22:36, "Dan Magenheimer" <dan.magenheimer@xxxxxxxxxx> wrote:

>> Xen-4.0-testing:19983 would be the c/s being discussed there.
> 
> Could you confirm that number?  The changeset says
> "xend: Fix use of set() for Python 2.3" and it was
> 11 months ago which doesn't match the "roll back to
> xen-4.0.1-rc3" suggestion in the xen-users thread,
> so I'm confused.

Sorry it's 21182. I was looking in 3.4 tree by mistake.

 -- Keir

> The device-node minors do match between /dev/xen and /proc/misc.
> 
> I'm in the process of doing a fresh build which will
> take awhile.
> 
> Thanks,
> Dan
> 
>> -----Original Message-----
>> From: Keir Fraser [mailto:keir.fraser@xxxxxxxxxxxxx]
>> Sent: Monday, July 12, 2010 3:10 PM
>> To: Dan Magenheimer; Ian Campbell; Stefano Stabellini
>> Cc: Young; xen-devel@xxxxxxxxxxxxxxxxxxx; DonDutile; Konrad Wilk
>> Subject: Re: [Xen-devel] Help booting Xen under RHEL6 beta2
>> 
>> Xen-4.0-testing:19983 would be the c/s being discussed there. You could
>> try
>> reverting it and see how that goes for you. But if you have
>> /dev/xen/evtchn
>> and /dev/xen/gntdev then (assuming the device nodes aren't bogus for
>> some
>> reason, and there's no reason they should be) you should be good to go
>> in
>> this respect. You could double check by 'ls -l /dev/xen' and compare
>> the
>> device-node minors to the list in /proc/misc.
>> 
>>  -- Keir
>> 
>> On 12/07/2010 21:44, "Dan Magenheimer" <dan.magenheimer@xxxxxxxxxx>
>> wrote:
>> 
>>> This recent thread from xen-users with the exact symptoms:
>>> http://www.gossamer-threads.com/lists/xen/users/177223
>>> (see last in thread) implies that this is the result of
>>> a regression since xen-4.0.1-rc3, though it's vague on
>>> exactly what regressed ("evtchn stuff"?).
>>> 
>>> I'll try rebuilding to confirm.
>>> 
>>>> -----Original Message-----
>>>> From: Keir Fraser [mailto:keir.fraser@xxxxxxxxxxxxx]
>>>> Sent: Monday, July 12, 2010 2:39 PM
>>>> To: Dan Magenheimer; Ian Campbell; Stefano Stabellini
>>>> Cc: Young; xen-devel@xxxxxxxxxxxxxxxxxxx; DonDutile; Konrad Wilk
>>>> Subject: Re: [Xen-devel] Help booting Xen under RHEL6 beta2
>>>> 
>>>> On 12/07/2010 21:19, "Dan Magenheimer" <dan.magenheimer@xxxxxxxxxx>
>>>> wrote:
>>>> 
>>>>> So I rebooted (with xend disabled), manually started xenstored,
>>>>> and ensured xenstored is indeed running with ps -ef.
>>>>> Then I tried "xenstore-ls" and all I get is:
>>>>> 
>>>>> tool = ""
>>>>>  xenstored = ""
>>>>> local = ""
>>>>> 
>>>>> I tried this on a EL5-based distro running a 2.6.18.8-xen
>>>>> dom0 (with xend disabled on boot) and xenstore-ls gives
>>>>> me a long list of dom0 related registry entries.
>>>> 
>>>> Those dom0 registry entries would be written by xend. If you just
>> run
>>>> xenstored, you'd expect the database to be pretty empty. Looks like
>>>> xenstored is running okay. Perhaps xend is trying to connect to
>>>> xenstored in
>>>> a different way to xenstore-ls. There are two different ways to
>> connect
>>>> --
>>>> via a Unix domains socket /var/run/xenstored/socket; or via a kernel
>>>> device
>>>> /proc/xen/xenbus.
>>>> 
>>>>  -- Keir
>>>> 
>>>> 
>> 
>> 



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