Slow Network on SABRE iMX6Q

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Slow Network on SABRE iMX6Q

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constantins
Contributor II

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

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Yuri
NXP TechSupport
NXP TechSupport

Please try the solution, suggested in


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

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

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Yuri
NXP TechSupport
NXP TechSupport

Please try the solution, suggested in


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

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

View solution in original post

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constantins
Contributor II

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

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LeonardoSandova
Specialist I

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

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constantins
Contributor II

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

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LeonardoSandova
Specialist I

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.

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constantins
Contributor II

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?

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LeonardoSandova
Specialist I

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

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