커널 2.6.11까지 올렸는데  시리얼로 메시지 출력이 깨집니다.
시리얼 콘솔 설정이 잘못된거 같습니다..

=>부트로더옵션
K. Kernel CMD 1st [initrd=0xa0800000,5M root=/dev/ram ramdisk=12288]
  M. Kernel CMD 2nd [console=ttyPXA2, 115200]
==>menuconfig 옵션

character devices-->
x                       falinux arch-driver support  --->                                                   x x
  x x                   [ ] Non-standard serial port support                                                    x x
  x x                       Serial drivers  --->                                                                x x
  x x                   [*] Legacy (BSD) PTY support                                                            x x
  x x                   (256) Maximum number of legacy PTY in use                                               x x
  x x                       IPMI  --->                                                                          x x
  x x                       Watchdog Cards  --->                                                                x x
  x x                   < > /dev/nvram support                                                                  x x
  x x                   < > Enhanced Real Time Clock Support                                                    x x
  x x                   < > Double Talk PC internal speech card support                                         x x
  x x                   < > Siemens R3964 line discipline                                                       x x
  x x                       Ftape, the floppy tape device driver  --->                                          x x
  x x                   < > Direct Rendering Manager (XFree86 4.1.0 and higher DRI support)                     x x
  x x                   < > RAW driver (/dev/raw/rawN) (OBSOLETE)                                               x x


Serial Driver ->
    x lqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqk x
  x x                       <*> 8250/16550 and compatible serial support                                        x x
  x x                       [*]   Console on 8250/16550 and compatible serial port                              x x
  x x                       (4)   Maximum number of non-legacy 8250/16550 serial ports                          x x
  x x                       [ ]   Extended 8250/16550 serial driver options                                     x x
  x x                       --- Non-8250 serial port support                                                    x x
  x x                       [*] PXA serial port support                                                         x x
  x x                       [*]   Console on PXA serial port                                                    x x


결과..

Quickly Autoboot [ENTER] / Goto BOOT-MENU press [space bar].
Copy Kernel Image .....
Copy Ramdisk Image .....
Starting kernel [MARCH 785]...
Uncompressing Linux....................................................................................... done, booting the kernel.
???€p8梟~薛?형