[Xen-users] Delay opening sockets

[Adam Smith <adam@xxxxxxxxxx>]

Hi.  We seem to be experiencing a very odd issue with Xen 3.0 (RPM 
version under CentOS).  When establishing a socket (via any application 
- for example telnet to a mailserver on port 25) there is an almost 
precise 10 second delay before there is any throughput.  This only 
happens intermittently and appears to occur on all VDSs on the same 
system.  This does not occur on identical physical systems on the same 
network.
dmesg on the host node shows lots of 'xen_net: Memory squeeze in netback 
driver.' but I'm not convinced this is the cause as they do not 
correspond with the delays.  It's almost as if it's waiting for 
something to time out...
Many thanks in advance for your assistance/thoughts/ideas/input.

Regards,

Adam Smith.


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