Re: [Xen-devel] [PATCH v2] xen/console: buffer and show origin of guest PV writes

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 09.09.13 at 13:13, Keir Fraser <keir.xen@xxxxxxxxx> wrote:
> On 16/08/2013 20:01, "Daniel De Graaf" <dgdegra@xxxxxxxxxxxxx> wrote:
> 
>> Guests other than domain 0 using the console output have previously been
>> controlled by the VERBOSE define, but with no designation of which
>> guest's output was on the console. This patch converts the HVM output
>> buffering to be used by all domains, line buffering their output and
>> prefixing it with the domain ID. This is especially useful for debugging
>> stub domains.
>> 
>> Signed-off-by: Daniel De Graaf <dgdegra@xxxxxxxxxxxxx>
> 
> This seems good, but, if we process and buffer dom0's output, we lose the
> possibility of running a terminal session in dom0 over the Xen console.
> Personally I do that quite a bit -- serial access only, get Xen's debugging
> there, but also can log in to dom0. Does noone else??

I use this only rarely; where possible I prefer using the normal
(VGA) console, and in most other cases ssh access to a remote
machine is available. But yes, I view this as an important feature
too, and simply failed to realize it would get broken by the change
here.

Jan


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