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Re: [Xen-users] Re: [Xen-devel] pci-passthrough in pvops causing offline

To: Stephan Austermühle <au@xxxxxxx>
Subject: Re: [Xen-users] Re: [Xen-devel] pci-passthrough in pvops causing offline raid
From: Pasi Kärkkäinen <pasik@xxxxxx>
Date: Thu, 18 Nov 2010 10:45:57 +0200
Cc: "xen-users@xxxxxxxxxxxxxxxxxxx" <xen-users@xxxxxxxxxxxxxxxxxxx>, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, "JBeulich@xxxxxxxxxx" <JBeulich@xxxxxxxxxx>, Mark Adams <mark@xxxxxxxxxxxxxxxxxx>
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On Thu, Nov 18, 2010 at 09:42:32AM +0100, Stephan Austermühle wrote:
> Hello Mark!
> 
> Am 16.11.2010 17:47, schrieb Mark Adams:
> 
> >>> Stephan Austermuhle advises that nothing is logged via remote syslog
> >>> when this hang occurs. I'll reply on that thread to see if he can add
> >>
> >> He can also look at http://wiki.xensource.com/xenwiki/XenSerialConsole
> >>
> >>> the additional logging
> >>
> >> Pasi, is there a Wiki with this?:
> >>
> >> When the hang happens, he needs to do two things:
> >>
> >>  1) In the Linux kernel, hit SysRq-L, SysRQ-T
> >>
> >>  2). Then  go in the hypervisor, hit Ctrl-A three times.  He should see a 
> >>      prompt saying (XEN) ** Serial ...
> >>      and hit '*' - that will collect all of the relevant information.
> >>
> >>  3). Send the full serial log from the start of the machine to us (or in 
> >> this
> >>      case, to you Mark - or you can just CC him on this thread).
> 
> Thanks for your support.
> 
> The server is far away from me (some hundred kilometers) with no chance
> to connect a serial console. The only thing that I have access to is a
> network console (kind of iLO). Is it sufficient to collect additional
> debug data?
> 

If it's SOL (Serial Over LAN), then yes, that's enough.

See: http://wiki.xensource.com/xenwiki/XenSerialConsole

-- Pasi


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