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Re: [Xen-devel] Live migration bug introduced in 2.6.32.16?

from [Nathan March] [Permanent Link][Original]
To: Ian Campbell <Ian.Campbell@xxxxxxxxxx>
Subject: Re: [Xen-devel] Live migration bug introduced in 2.6.32.16?
From: Nathan March <nathan@xxxxxx>
Date: Thu, 27 Jan 2011 14:54:54 -0800
Cc: "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
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On 1/27/2011 12:57 PM, Ian Campbell wrote:


Are the guests 32 or 64 bit? How about the hypervisor and dom0 kernel?
What is your kernel's .config?

All 64bit. Config is attached.


If you edit /etc/sysconfig/{xencommons,xend} (whichever one you have)
then you can set XENCONSOLED_TRACE=guest which will write guest consoles
to /var/log/xen/domain. Also setting "on_crash=preserve" in your guest
configuration will hopefully cause them to stick around long enough to
see what was on the console.
Will try that. The domUs don't actually fully crash, they just lock up. The VM keeps running until I destroy it. Trying to attach to the console when it's in this state results in xenconsole hanging on an select against fd 3/4/5 (socket, pipe + pipe) 

I'll try all the things suggested and let you guys know what I find.

- Nathan

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