有没有哪位使用过kgdb调试mini6410？
我重新编译了mini6410的linux kernel，加入了kgdb，并在bootargs里添加了kgdboc=ttySAC0，115200和kgdbwait，为什么内核启动的时候停不下来呢？
苦恼，有没有人遇到同样的问题？
附一些串口打印信息，kgdb waiting出来之后就直接跳过去了：
pmem: 1 init
pmem_gpu1: 0 init
pmem_adsp: 0 init
kgdb: Registered I/O driver kgdbts.
kgdb: Waiting for connection from remote gdb...
Entering kdb (current=0xca824400, pid 1) due to Keyboard Entry
kdb> kgdbts:RUN plant and detach test
kgdbts:RUN sw breakpoint test
kgdbts:RUN bad memory access test
kgdbts:RUN singlestep test 1000 iterations
kgdbts:RUN singlestep [0/1000]
kgdbts:RUN singlestep [100/1000]
kgdbts:RUN singlestep [200/1000]
kgdbts:RUN singlestep [300/1000]
kgdbts:RUN singlestep [400/1000]
kgdbts:RUN singlestep [500/1000]
kgdbts:RUN singlestep [600/1000]
kgdbts:RUN singlestep [700/1000]
kgdbts:RUN singlestep [800/1000]
kgdbts:RUN singlestep [900/1000]
kgdbts:RUN do_fork for 100 breakpoints
S3C NAND Driver, (c) 2008 Samsung Electronics
S3C NAND Driver is using hardware ECC.
NAND device: Manufacturer ID: 0xec, Chip ID: 0xd3 (Samsung NAND 1GiB 3,3V 8-bit
