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Re: [Xen-devel] null domains | xen4.4

On Mon, 2014-12-01 at 13:54 +0300, Alexey wrote:
> xl list two domains for example:
> (null)                                      67     0     8     --pssd  
> 135229.6
> (null)                                      69     0     4     --ps-d    
> 4172.2
> vif67.0 still exist in my dom0 and i can't "ip link delete" it.
> Attached block device marked as busy also.

What does "xenstore-ls -fp" say? Are the backend xenstore nodes still

> We try to use the last 3.10 kernel, now new nodes use 3.10.61 kernel, 
> but this node on which I can experiment was booted with 3.10.55 kernel.

I meant something newer than 3.10, not just the latest 3.10.

> I attach xl-dmesg after 'q' trigger.

Thanks, seems like each domain has three leaked pages, e.g.:

(XEN) Memory pages belonging to domain 4:
(XEN)     DomPage 0000000000c2b7e6: caf=00000001, taf=7400000000000001
(XEN)     DomPage 0000000000c2aa03: caf=00000001, taf=7400000000000001
(XEN)     DomPage 0000000000cb8397: caf=00000001, taf=7400000000000001

If the vifX.Y device is still in existence then there's a pretty good
chance it's holding a page, likewise any disk backends etc.

Are there any messages in the dom0 dmesg around the time of the guest
supposedly shutting down? How about logs under /var/log/xen.


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