MPC5200B panics with high ethernet rx traffic

Grant Likely grant.likely at
Thu Oct 15 04:07:35 EST 2009

On Wed, Oct 14, 2009 at 10:35 AM, Asier Llano Palacios <a.llano at> wrote:
> Hi,
> I've found a very simple way to create a kernel panic, that's happening
> to our MPC5200B based boards. The issue was that when our boards
> received a burst of ethernet packets had a kernel panic.

This looks familiar.  Look in drivers/net/fec_mpc52xx.c and find the
function mpc52xx_fec_reset().  Remove the calls to phy_stop(),
phy_write() and phy_start().  See if that helps.


Grant Likely, B.Sc., P.Eng.
Secret Lab Technologies Ltd.

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