jevois-daemon -- Illegal instruction (core dumped)

Question

I have installed jevois-dev-sdk along with compiling jevois and jevoisbase from scratch. When I run "sudo jevois-daemon" I get the following:

INF Engine::Engine: Loaded 61 vision processing modes.
INF Engine::onParamChange: Using [stdio] hardware (4-pin connector) serial port
INF Engine::onParamChange: No USB serial port used
INF Engine::postInit: Starting camera device /dev/video0
INF Camera::Camera: [10] V4L2 camera /dev/video0 card Microsoft® LifeCam Cinema(TM): bus usb-0000:00:1d.7-3
INF Engine::postInit: Using display for video output
INF Engine::setFormatInternal: OUT: YUYV 640x300 @ 60fps CAM: YUYV 320x240 @ 60fps MOD: JeVois:DemoSaliency C++
INF Camera::setFormat: Camera set video format to 320x240 YUYV
INF Engine::setFormatInternal: Instantiating dynamic loader for /jevois/modules/JeVois/DemoSaliency/DemoSaliency.so
INFO: JeVois 1.8.1
INFO: Linux version 4.13.0-36-generic
INFO: CPU: 2161MHz, 53C, load: 0.43 0.31 0.41 5/542 17604
INFO: MemTotal: 4000200 kB, MemFree: 630604 kB
INFO: OUT: YUYV 640x300 @ 60fps CAM: YUYV 320x240 @ 60fps MOD: JeVois:DemoSaliency C++
INF Engine::setFormatInternal: Module [DemoSaliency] loaded, initialized, and ready.
INF Camera::streamOn: 5 buffers of 153600 bytes allocated
INF READY JEVOIS 1.8.1
Illegal instruction (core dumped)

PC Specs:

OS: Ubuntu 16.04 x86_64

CPU: Intel Pentium Dual  CPU  T3400  @ 2.16GHz

Answer 1

Hum, probably something is out of date. Did you do both rebuild-host.sh and rebuild-platform.sh in jevois and in jevoisbase after you got the source?

Can you run "gdb jevois-daemon" and then type "run" in gdb to start and then "bt" to get the backtrace after the crash?

Comments

yes, I have build both jevois and jevoisbase for host. When using gdb I get the following:

Thread 13 "jevois-daemon" received signal SIGILL, Illegal instruction.
[Switching to Thread 0x7fffba58d700 (LWP 18420)]
0x00007fffbfa32af5 in env_c_lowpass_5_y_dec_y_fewbits_optim (
    src=<optimized out>, w=160, h=240, dst=<optimized out>, h2=<optimized out>)
    at /home/ian/jevoisbase/src/Components/Saliency/env_c_math_ops.c:104
104          *dst++ = (src[ 0] * 2 + src[ w]) / 3;

---

Very odd, that code has been stable for years now...

Can you do a full recompilation for both host and platform, first both in jevois, then both in jevoisbase? This should get everything back in sync.

http://jevois.org/doc/CompilingJeVois.html then
http://jevois.org/doc/CompilingJeVoisBase.html (use ./rebuild-host.sh then ./rebuild-platform.sh --staging)

---

Annoyingly, this didn't change anything. I did, however, figure out that "gcc-6-arm-linux-gnueabihf" isn't installed, and isn't available with the base apt install. I saw in the INSTALL file that adding two sources was necessary, but the first one apparently doesn't have a  Release file, and the second one is malformed. This could be the issue but i cant find a way to get "gcc-6-arm-linux-gnueabihf" and its companion packages.