When remote connecting GDB to KGDB on target board, single step works on breakpoints

Hi,

I am using Linux 2.6.35.10 on Freescale P2020 processor. When I use GDB from my host computer connecting to KGDB on target board, if I set more than one breakpoints, then issue step (or next, or continue ) command from GDB, the GDB will not hit other breakpoints, just waiting there forever. I have to use ctrl-C to stop it. However, if I set up only one breakpoints at a time, the step (or next, or continue ) command will work fine. That means I have to delete previous breakpoints, then set up a new breakpoints before using step (or next, or continue ) command. Can somebody give me a help to solve the problem ?

Thanks.