Dear Eric: Thank you for your response. My memory size is 515936 kB and the swap size is 835340 kB.
The program is used to generate some noise to 802.11 communication. I am generating different signals with a certain pulse width (e.g. 20us), and fixed idle width (e.g. 1000us). The program runs for some time (minutes or one hour) --> screen outputs: Segmentation fault -> program stops. Now I am rebuilding fftw_3.0.1 on Ubuntu, still get errors when doing the make :( Thanks, Xin On Fri, 23 Feb 2007, Eric Blossom wrote: > On Fri, Feb 23, 2007 at 01:45:58PM -0500, Liu Xin wrote: > > Hello, All: > > > > I am using USRP for my project. > > I got fragmentation fault when running the python code. Googleing online I > > found one soultion might be to build fftw without --enable-sse. > > > > Therefore I download fftw-3.1.2: > > ./configure -prefix=$home --enable-single --enable-shared > > make > > The make fails [rank0.lo] (I made clean and make multiple times, each > > time it fails at different files, but all in rdft/) > > > > I am using Ubuntu build 2.6.15-23-386 and Athlon XP2200+. Is there anyone > > who can help with this? > > > > Also I use gdb to debug the program as suggested in the mailing list > > before. However each time the gdb attach the pid the my python program > > stops running until the I quit the gdb. > > Can anyone help with debugging this Segmentation Fault Problem? > > > > Thanks a lot for your input, > > Xin > > How does it fail? > > The compiler could be running out of memory. > How much RAM and swap does your machine have? > > Eric > _______________________________________________ Discuss-gnuradio mailing list [email protected] http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
