From mboxrd@z Thu Jan 1 00:00:00 1970 From: Juergen Gross Subject: Problems with serial console Date: Fri, 05 Feb 2010 08:04:55 +0100 Message-ID: <4B6BC317.7050400@ts.fujitsu.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: "xen-devel@lists.xensource.com" List-Id: xen-devel@lists.xenproject.org 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@ts.fujitsu.com Domagkstr. 28 Internet: ts.fujitsu.com D-80807 Muenchen Company details: ts.fujitsu.com/imprint.html