Re: [Gumstix-users] netwifi-microsd ethernet and wifi failure under load

[adrian c. <adr...@gm...>]

I haven't seen this problem, however I don't have the WiFi module
fitted. I was saturation testing the eth0 interface with large http
reads to see how fast it would go, and it maxed out at about
25-30Mbit/s. I was using wget of a 70MB file with each stream running
at 500KBytes/s and after 5 streams it couldn't keep them all running
at full speed. I ran this for a long time and didn't see the interface
stop. The second system running wget was a Mac, wired directly. The
CPU load was about 20-25%, so I assume that there is a bus speed
limitation of around 3MB/s somewhere between the PXA270 and the
Ethernet device?

Maybe you could disable or remove the WiFi module to see if it still fails?

Adrian

On Dec 7, 2007 5:10 PM, Mark Lewis <mar...@sr...> wrote:
> I have a similar problem as Steve reported.
> Eth0 routinely stops receiving after a random time (a couple minutes or
> hours).
> But NOT under heavy load - just once a second pings to a PC - NOT
> flooding pings.
> I am also transmitting on the wifi only once a second, but there is no
> other wifi on the same SSID, although there are other wifi SSID's around.
>
> The problem occurs on both verdex systems I have recently put together:
>
> verdex XL6P motherboard
> console-vx (3 serial ports and USB host)
> netwifi-microSD-FCC
> buildroot 1565
>
> I run wireshark on the PC to monitor the ethernet. PINGing (once a
> second) generates the expected ARP and ICMP echo packets. About every
> 20, or 25, or 30, or 40 seconds, a new ARP request goes out (not sure
> why the period changes) from the gumstix, and reply is observed from the
> PC. Once the PINGs stop working, ARP requests and replies show up on
> wireshark on the PC every second, the ping interval. The PC continues to
> have a good network connection.
>
> Any help?
>
> Thank you
> Mark
>
>
>
>
>
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