很好的linux內核調試軟件 兼轅馬，沒有密碼。
The ia64 and ix86 directories contain versions of kdb prior to v2.0
(kdb version v2.0, not the kernel version). Older versions of kdb had
complete patches for each architecture it supported, each patch included
all the common kdb code. This format was awkward to maintain and use
for multiple platforms.
Starting with kdb v2.0 there is a common patch against each kernel which
contains all the architecture independent code plus separate architecture
dependent patches. Either use an old style (v1.8 or v1.9) kdb patch or
use a new style (v2.0) common patch plus the corresponding architecture
dependent patch.
