[Xen-users] PV guests concurrent running limit

[Andrey Schmiegelow <asw@xxxxxxxxx>]

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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