Re: [Ltib] Problems with GianFAR driver

[Stuart Hughes]

Hi Marcos,

This is likely a kernel issue.  You may be able to get help on the
kernel powerpc mailing list or directly from Freescale support.

Regards, Stuart

Marcos Cunha wrote:
> Hi,
> 
> Anyone had problems with overrun in gianfar driver?
> 
> My board have two ethernet interfaces (1 GBe  and 1 Fast Ethernet),
> when  I execute a iperf app to generate high throughput data the linux
> shows some overrun error and interface eth1 stops.
> 
> The linux tried to stop and restart the hardware, but it isn't
> sufficient and the below messages appear.
> 
> NETDEV WATCHDOG: eth1: transmit timeout
> NETDEV WATCHDOG: eth1: transmit timeout
> NETDEV WATCHDOG: eth1: transmit timeout
> 
> When I execute "ifconfig eth1 down" and "ifconfig eth1 up", the
> interface come back to live.
> 
> My system configurations:
> Processor: MPC8315e
> Kernel Version: 2.6.24
> 
> Thanks in advance,
> 
> Marcos Cunha
>