Slow Network on SABRE iMX6Q

[constantins]

All,

I am having difficulty communicating with my iMX6Q. I am ssh'ed in and symbols appear after some delay. Pinging from the iMX6 to my router, reveals a delay of 100ms! My computer to the iMX6 is 500ms!

  Could anyone offer any debugging advice? Thank you in advance!

Constantin

[Yuri · Accepted solution]

Please try the solution, suggested in

https://community.freescale.com/message/319417#319417

(adding "enable_wait_mode=off" in the bootargs of U-boot)

[constantins]

Yuri thank you very much, the difference was instantly visible. Tried booting again without the suggested parameter and the problem re-emerged.

[LeonardoSandova]

Which BSP version are you using ? L3.0.35_1.1.0? Also, for a more verbose log, add -v to the ssh command

Leo

[constantins]

Hey Leonardo, I am using the L.3.0.35_1.1.0_121218 uboot binary (u-boot-mx6q-sd.bin) and oneiric file system. I believe I got these from the Downloads sections but I'm having trouble finding them again.

What am I looking for with the ssh -v flag? It seems the entire connection is slow (due to the ping tests?) Thank you

[LeonardoSandova]

It may be a DNS issue on your side: http://scofaq.aplawrence.com/FAQ_scotec4slow_ping.html

Also, try another filesystem, like the Linux Demo Image; if problem persists, then something is wrong on your network.

[constantins]

Hey Leonardo, thanks for the link! I tried the ping -n, but experienced the same ping. We have a few other systems running on the network (currently turned off), they do not experience the similar latency's.

My first thought is that this is something I've done in setting up the board (perhaps in uboot?) and is related to a driver setting or maybe version?

[LeonardoSandova]

I do not think it is U-boot related problem. U-boot is just the loader and you are having issues on the OS.