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On Sat, Aug 27, 2016 at 8:31 PM Andrey Schmiegelow <asw@xxxxxxxxx> wrote:

Hi Kun Cheng.
I´m sure there are enough resources. While running those 50 PV guests I can deploy others guest in HVM mode.
The problem raises only when I try to deploy another PV guest (beyond the 50).

Thank you for your post.

Andrey
Em 27/08/2016 04:24, Kun Cheng escreveu:
Perhaps because of the limited resource? I experienced similar situation as I use a old desktop to run Xen 4.1 several years ago. Dom0 died occasionally as the resource was tight so no logs were found either.

On Sat, Aug 27, 2016 at 1:12 AM Andrey Schmiegelow <asw@xxxxxxxxx> wrote:

Hello xen users

I'm experiencing problems when trying to deploy more than 50
paravirtualized guests.
No relevant messages in logs I found.

Follow xl-guest log
==========================================
Waiting for domain smtp-051 (domid 55) to die [pid 14104]
Domain 55 has shut down, reason code 3 0x3
Action for shutdown reason code 3 is destroy
Domain 55 needs to be cleaned up: destroying the domain
Done. Exiting now
=========================================

No messages appears in console log, even in the hypervisor.log

The tests were did under xen versions 4.4.4, 4.6.1, 4.6.3 and 4.7

The xen.gz line command contains loglvl=all guest_loglvl=all parameters.
I also looked for any kind of limitation constant (like "50") in the
source files with no success.
I'm running in a dual Xeon X5660 (12 cores / 24 HT) and 64 GBytes RAM.
Each VM consumes less the 400 MB of RAM.

Any ideas?

Regards,
Andrey

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Regards,
Kun Cheng
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Re: [Xen-users] PV guests concurrent running limit