debug Xen

accessory

1. debug dom0 and dom u
http://lists.xensource.com/archi ... 08-10/msg00195.html
2. build option :

Xen provides a number of build-time options which should be set as environment variables or passed on make's command-line.

verbose=y
    Enable debugging messages when Xen detects an unexpected condition. Also enables console output from all domains.
debug=y
    Enable debug assertions. Implies verbose=y. (Primarily useful for tracing bugs in Xen).
debugger=y
    Enable the in-Xen debugger. This can be used to debug Xen, guest OSes, and applications.
perfc=y
    Enable performance counters for significant events within Xen. The counts can be reset or displayed on Xen's console via console control keys.

3. use serial cable
http://en.opensuse.org/How_to_Ca ... sing_a_Serial_Cable
4. KDB
http://lists.xensource.com/archi ... 08-11/msg00165.html