virtual box 日志路径

https://blogs.oracle.com/fatbloke/entry/virtualbox_log_files

Log File Location

VirtualBox log files live in a per-user/per-vm directory that will be something like:

• On Windows, this is %HOMEDRIVE%%HOMEPATH%\\.VirtualBox\\Machines\\\\Logs; typically some- thing like C:\\Documents and Settings\\Username\\.VirtualBox\\Machines\\\\Logs\\vbox.log
• On Mac OS X, this is $HOME/Library/VirtualBox/Machines//Logs
• On Unix-like systems (Linux, Solaris), this is $HOME/.VirtualBox/Machines//Logs

The log files are rotated such that the most recent is always called vbox.log and older ones are vbox.log.[123]. These log files contain lots of information about the capabilities of both the host and the guest vm and should be provided whenever reporting issues with VirtualBox. 

开启日志
e:\VirtualBox-2.2.0_OSE\src\VBox\Additions\WINNT\Graphics\Display\

1. #VBoxDisp_DEFS = VBOX_WITH_DDRAW
   
2. #VBoxDisp_DEFS = VBOX_WITH_OPENGL
   
3. #VBoxDisp_DEFS += LOG_TO_BACKDOOR
   
4. VBoxDisp_INCS = ../../include
   
5. #VBoxDisp_DEFS += VBOX_VBVA_ADJUST_RECT
   
6. VBoxDisp_DEFS += LOG_ENABLED
   
7. #VBoxDisp_DEFS += STAT_sunlover

LOG_TO_BACKDOOR
输出到C:\Users\ckelsel\.VirtualBox\Machines\disp\Logs