Re: mx35, gadget, fsl_usb2_udc: link breaks down

[Christoph Fritz <chf.fritz@xxxxxxxxxxxxxx>]

On Mon, Apr 09, 2012 at 09:24:55PM -0300, Fabio Estevam wrote:
> On Mon, Apr 9, 2012 at 9:10 PM, Hans J. Koch <hjk@xxxxxxxxxxxx> wrote:
> 
> > Cool. That's the 3DS board, isn't it?
> 
> Yes, a mx35_3ds board.
> 
> However, I do see the lost link after something about 40 pings
> behaviour that Cristoph reported.
> 
> If I force a "ifconfig usb 10.0.0.1" on the host the link
> re-establishes and then it works fine.
> 
> I have been running more then 3000 pings after the manual "ifconfig".

Nice, thanks for testing.

After using rc2 and adding the nfs patch mentioned before I don't get
crashes any more.

For stress testing g_ether I use iperf:
 on embedded system: iperf -s
 on PC: iperf -c 10.0.0.2

With Wireshark I can see a lot of "TCP Window Full" Messages. The
link stays borken even when interrupting iperf after a secound.

I suppose this is a general problem with usbnet/g_ether?


Thanks,
 -- Christoph

--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html