[Xen-devel] Problems with serial console

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Subject:	[Xen-devel] Problems with serial console
From:	Juergen Gross <juergen.gross@xxxxxxxxxxxxxx>
Date:	Fri, 05 Feb 2010 08:04:55 +0100
Delivery-date:	Thu, 04 Feb 2010 23:05:18 -0800
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Hi,

I'm trying to investigate the dom0 early boot hang on my 4-core Nehalem
system. Up to now I have not been able to get any keypress via the serial
line into the hypervisor.

With xen 3.3.1 everything (serial in- and output) works with the following xen
parameters:

kernel /boot/xen.gz console=com1 com1=38400 sync_console debug=yes loglvl=all
guest_loglvl=all crashkernel=256M@16M

With xen-unstable and the following parameters only the xen messages are seen
via the serial line, input is not possible:

kernel /boot/xen.gz console=com1 com1=38400 sync_console debug=yes loglvl=all
guest_loglvl=all crashkernel=256M-:128M@16M

What could be the reason? Any idea what I could try?


Juergen

-- 
Juergen Gross                 Principal Developer Operating Systems
TSP ES&S SWE OS6                       Telephone: +49 (0) 89 3222 2967
Fujitsu Technolgy Solutions               e-mail: juergen.gross@xxxxxxxxxxxxxx
Domagkstr. 28                           Internet: ts.fujitsu.com
D-80807 Muenchen                 Company details: ts.fujitsu.com/imprint.html

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[Xen-devel] Problems with serial console