Hi, list. Now, I am trying to use kgtp on ARM soc. After make kgtp by crosstools and transfer the kgtp.ko to target, I try gdb on PC to connect target. I follows https://code.google.com/p/kgtp/wiki/HOWTO . And use “nc -l 1234 </sys/kernel/debug/gtp >/sys/kernel/debug/gtp” command, but error throw. /sys/kernel/debug/gtp is not exist. Then, try "target remote targetip:1234" in gdb mode. The connecting always fail. Any suggestion is welcome. Thanks Haifeng Li