<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div id="yui_3_16_0_1_1433404480919_3365">Hi, I am doing some research on monitoring the kernel by BitVisor. During my studying, I encountered some problems  on debugging the BitVisor. </div><div id="yui_3_16_0_1_1433404480919_3365">1. Using the panic function to print some log messages to trace and debug  is my original idea. I found when I called the panic function( vmm.shell has been set to 1), the computer went to dead and nothing was printed on the screen. However, I also found that the panic function worked well during the  period of start-up. I don't know why.</div><div id="yui_3_16_0_1_1433404480919_3365" dir="ltr">2. [bitvisor-devel-en:25] and [bitvisor-devel-en:27] talked about the debugging method for BitVisor roughly, I want to know more details about it , such as how to debug BitVisor by using VMWare or QEMU and so on.</div><div id="yui_3_16_0_1_1433404480919_3365" class="" style=""> Thanks for help very much！</div><div id="yui_3_16_0_1_1433404480919_3365" class="" style="">David.</div></div></body></html>