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[Xen-users] Remus crashes

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-users] Remus crashes
From: Darko Petrović <darko.b.petrovic@xxxxxxxxx>
Date: Tue, 16 Nov 2010 16:45:10 +0100
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Hello everyone,

I've managed to configure and start Remus. However, it works only while the protected server is not loaded. As soon as I start a memory-intensive server application, the stream of Remus messages stops, leaving me with an error message. I think the message is not always the same, but here is what I've got from the last run:

PROF: suspending at 1289921328.328959
PROF: resumed at 1289921330.903716
xc: error: Error when flushing output buffer (32 = Broken pipe): Internal error
tc filter del dev vif1.0 parent ffff: proto ip pref 10 u32
RTNETLINK answers: Invalid argument
We have an error talking to the kernel
Exception xen.remus.util.PipeException: PipeException('tc failed: 2, No such file or directory',) in <bound method BufferedNIC.__del__ of <xen.remus.device.BufferedNIC object at 0x7f27844df210>> ignored

I have tried to pin one physical core to Domain 0 and another one to the protected domain, using vcpu-pin but it doesn't help. Currently I am running the Xen-unstable tree (last updated 3-4 days ago), pv-ops kernel as Dom-0 and as Dom-U, but I had a very similar problem with Xen 4.0.0 and as Dom-0.

Any suggestions?


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