I have installed libQtGui.so , libQtCore.so and libQtNetwork.so files in my target board.

I have back traced with arm-linux-strace utility, its showing segmentation fault while trying to mmap() for fb0.;.
It not a problem with directory path... I have traced out that qt application is able to find libQtGui.so , libQtCore.so and libQtNetwork.so.

my
libQtGui.so = 11 MB
libQtCore.so = 3.2 MB and
libQtNetwork.so = 1.1 MB

I have 32 MB of FLASH and 32MB SDRAM. whether it's problem with memory??