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Re: [Xen-users] Remus crashes

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] Remus crashes
From: Darko Petrović <darko.b.petrovic@xxxxxxxxx>
Date: Wed, 17 Nov 2010 14:45:51 +0100
Delivery-date: Wed, 17 Nov 2010 05:47:18 -0800
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Thanks for your help, JB.
Yes, I would say that it is installed. The "tc" command does exist. After all, everything works correctly with non-intensive workloads.

Any other suggestions, anyone?

On 11/16/2010 09:31 PM, Jean Baptiste FAVRE wrote:
Seems that remus tries to use "tc" command. Think it's for traffic
shaping to take priority.
Is the package installed on your dom0 ?


Le 16/11/2010 16:45, Darko Petrović a écrit :
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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