This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
Home Products Support Community News


Re: [Xen-users] Re: Serial Console Problem

To: "Andrew Lyon" <andrew.lyon@xxxxxxxxx>
Subject: Re: [Xen-users] Re: Serial Console Problem
From: Ferenc Wagner <wferi@xxxxxxx>
Date: Sat, 27 Sep 2008 20:04:29 +0200
Cc: "xen-users@xxxxxxxxxxxxxxxxxxx" <xen-users@xxxxxxxxxxxxxxxxxxx>
Delivery-date: Sat, 27 Sep 2008 11:05:29 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <f4527be0809260945i7356f5b6t7e9bb4150831cb74@xxxxxxxxxxxxxx> (Andrew Lyon's message of "Fri, 26 Sep 2008 17:45:05 +0100")
List-help: <mailto:xen-users-request@lists.xensource.com?subject=help>
List-id: Xen user discussion <xen-users.lists.xensource.com>
List-post: <mailto:xen-users@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/mailman/listinfo/xen-users>, <mailto:xen-users-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-users>, <mailto:xen-users-request@lists.xensource.com?subject=unsubscribe>
References: <f4527be0809250716u73a1d44bk35b43a7d2503d8bf@xxxxxxxxxxxxxx> <f4527be0809260945i7356f5b6t7e9bb4150831cb74@xxxxxxxxxxxxxx>
Sender: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
User-agent: Gnus/5.110006 (No Gnus v0.6) Emacs/21.4 (gnu/linux)
"Andrew Lyon" <andrew.lyon@xxxxxxxxx> writes:

> It seems that the serial console is completely dead after "Freeing
> unused kernel memory: 208k freed"

That's strange indeed.  What appears on the VGA console after this
line?  (If you can scroll back via Shift+PgUp.)

> I cannot access the sysreq commands and which I need to debug a
> lockup problem.

I've never managed to get the break through the hypervisor on a serial
port.  That means no sysrq for dom0.  That and the lack of flow
control make the Xen serial support unprofessional.  Those would be my
wishes for 3.4... :)

> Is there something wrong with the way I have configured the serial
> console?

As you can see some kernel messages, it looks like you configured the
kernel console, contrary to what your config shows...

Xen-users mailing list