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FEC data corruption?

Question asked by Wouter Vanhauwaert on Jun 14, 2017
Latest reply on Oct 17, 2017 by Wouter Vanhauwaert

I'm trying to do a long-term network test on 2 platforms.

One is based on imx6q, the other on imx6ul.

imx6q is using linux-fslc, imx6ul is using linux-imx

For that, I enabled the busybox inetd service with the echo protocol enabled. I'm flooding the device with echo requests of 12kiB (0x3000B)

Most of the time that goes well, but at certain points, the data returned by the platform is corrupted. After some research, it looks like the data returned is copied from memory address 0 in stead of the correct data. Any idea what can cause this?

I attach a screenshot of wireshark showing this behaviour