Re: [Xen-users] HVM domU on storage driver domain

["G.R." <firemeteor@xxxxxxxxxxxxxxxxxxxxx>]

On Wed, Mar 1, 2017 at 10:54 PM, Roger Pau Monné <roger.pau@xxxxxxxxxx> wrote:
> On Wed, Mar 01, 2017 at 10:44:02PM +0800, G.R. wrote:
>> On Tue, Feb 28, 2017 at 11:44 PM, Roger Pau Monné <roger.pau@xxxxxxxxxx> 
>> wrote:
>> >> It's not clear to me what the time-outed watch is waiting for.
>> >> While the disk back-end is highly suspicious, the context in the
>> >> passing log looks more vif related.
>> >
>> > Neither to me, it seems like the stubdomain doesn't start correctly, but 
>> > the
>> > stubdom log doesn't give any clues about what might cause it (or at least 
>> > I'm
>> > not able to identify them). Can you please apply the following patch, try 
>> > to
>> > create the domain (this time using the stubdom), and after 30s do 
>> > `xenstore-ls
>> > -fp` in the Dom0 and paste the results here?
>> >
>> > This way I will know if the frontends in the stubdom have attached 
>> > correctly.
>> >
>> Please find the requested log in the attachment.
>> I also attached the qemu log from the stubdomain. Not very interesting
>> from my POV, just for reference.
>>
>> Quoting how VBDs are shown up on different domU.
>> It sounds like both are correctly connected, even though different
>> number of ring pages are used.
>> *xvda for the running FreeNAS domU:
>> /local/domain/1/device/vbd = ""   (n0,r1)
>> /local/domain/1/device/vbd/51712 = ""   (n1,r0)
>> /local/domain/1/device/vbd/51712/backend =
>> "/local/domain/0/backend/vbd/1/51712"   (n1,r0)
>> /local/domain/1/device/vbd/51712/backend-id = "0"   (n1,r0)
>> /local/domain/1/device/vbd/51712/state = "4"   (n1,r0)
>> /local/domain/1/device/vbd/51712/virtual-device = "51712"   (n1,r0)
>> /local/domain/1/device/vbd/51712/device-type = "disk"   (n1,r0)
>> /local/domain/1/device/vbd/51712/ring-ref0 = "768"   (n1,r0)
>> /local/domain/1/device/vbd/51712/ring-ref1 = "769"   (n1,r0)
>> /local/domain/1/device/vbd/51712/ring-ref2 = "770"   (n1,r0)
>> /local/domain/1/device/vbd/51712/ring-ref3 = "771"   (n1,r0)
>> /local/domain/1/device/vbd/51712/num-ring-pages = "4"   (n1,r0)
>> /local/domain/1/device/vbd/51712/ring-page-order = "2"   (n1,r0)
>> /local/domain/1/device/vbd/51712/event-channel = "8"   (n1,r0)
>> /local/domain/1/device/vbd/51712/protocol = "x86_64-abi"   (n1,r0)
>>
>> *xvda for the ruibox-dm stubdomain:
>> /local/domain/3/device/vbd = ""   (n0,r3)
>> /local/domain/3/device/vbd/51712 = ""   (n3,r1)
>> /local/domain/3/device/vbd/51712/backend =
>> "/local/domain/1/backend/vbd/3/51712"   (n3,r1)
>> /local/domain/3/device/vbd/51712/backend-id = "1"   (n3,r1)
>> /local/domain/3/device/vbd/51712/state = "4"   (n3,r1)
>> /local/domain/3/device/vbd/51712/virtual-device = "51712"   (n3,r1)
>> /local/domain/3/device/vbd/51712/device-type = "disk"   (n3,r1)
>> /local/domain/3/device/vbd/51712/protocol = "x86_64-abi"   (n3,r1)
>> /local/domain/3/device/vbd/51712/ring-ref = "1789"   (n3,r1)
>> /local/domain/3/device/vbd/51712/event-channel = "5"   (n3,r1)
>
> Hm, can you please paste the full output of xenstore-ls -fp, I also want to 
> see
> if the stubdomain correctly sets the "initialized" stated
> (/local/domain/XX/device-model/YY/state), and the state of the backend in the
> driver domain (/local/domain/1/backend/).
>
Hi Roger,
The full log is in the attachment file 'store9'.

Thanks,
Rui

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