Linux/AM3359: Segmentation fault when running icss_emac loopback test (LPSDK 5.0)

Hi Paula,
I have not used the SD card windows method to build an SD card, only the current Linux SDK. I also I have not tried the demo that you are mentioning.

In general the seg fault could be coming from a number of things. For example, are the all the libraries that the app was built against present in the root file system? Since you copied the executable out there maybe dependent libraries that need to be copied too. Use this command to find if there are libraries needed:

libtool -d <path to>icss_emacMainTest_am335x.out

Best Regards,
Schuyler

Hi Schuyler, thanks for your reply. Howerver "libtool -d" didn't work for me. I tried "ldd" instead.. I don't see anything reported as "no found" so I guess it is OK?

root@am335x-evm:/home# libtool -d icss_emacMainTest_am335x.out
Usage: /usr/bin/libtool [OPTION]... [MODE-ARG]...
Try 'libtool --help' for more information.
libtool: error: unrecognised option: '-d'

root@am335x-evm:/home# ldd icss_emacMainTest_am335x.out
librt.so.1 => /lib/librt.so.1 (0xb6faf000)
libpthread.so.0 => /lib/libpthread.so.0 (0xb6f8b000)
libc.so.6 => /lib/libc.so.6 (0xb6e9e000)
/lib/ld-linux-armhf.so.3 (0xb6fc5000)

root@am335x-evm:/home# ldd powerlinkcn.out
librt.so.1 => /lib/librt.so.1 (0xb6f87000)
libpthread.so.0 => /lib/libpthread.so.0 (0xb6f63000)
libc.so.6 => /lib/libc.so.6 (0xb6e76000)
/lib/ld-linux-armhf.so.3 (0xb6f9d000)

For your information, my final goal is to test powerlinkcn (slave). But after building/running it, I got "segmentation fault". That was the reason I compiled and tested OOB UIO demo (PRU-ICSS EMAC loopback), but, as reported I got the same error.

Few months ago, I was able to build and run UIO PRU-ICSS EMAC demo with LPSDK 4.0. Do you know if someone else have test UIO loopback demo on PSDK 5.0? I would like to rule out it is a known issue.. Or alternatively, do you see any issue on the steps I followed? anything else I can test?

Thank you,
Paula

Hi Paula,

It might possibly be lib issues, do these libraries with these versions exist on the target?

ibrt.so.1 => /lib/librt.so.1 (0xb6f87000)
libpthread.so.0 => /lib/libpthread.so.0 (0xb6f63000)
libc.so.6 => /lib/libc.so.6 (0xb6e76000)
/lib/ld-linux-armhf.so.3 (0xb6f9d000)

Regards,
Schuyler

Hi Schuyler, a quick update. I created an SD card with am335x-evm-linux-rt-04.00.00.04.img (from ti.com), rename "am335x-icev2-pru-excl-uio.dtb" as "am335x-icev2.dtb", then copy "icss_emacMainTest_am335x.out" and "powerlinkcn.out" (both *.out were built using PSDK 5.0).

With an SD card running PSDK4.0 both applications run OK.

I will open a JIRA.

thank you,
Paula"