PPC Linux painic problem!

Marius Groeger mgroeger at sysgo.com
Mon Apr 26 17:20:08 EST 2004


On Mon, 26 Apr 2004, jeffy wrote:

> Hi all,
> 	I hit on a problem about PPC Linux version 2.4.4 on a MPC855T board.
>     The kernel can start up ok normally, but when another PC
> continous sending UDP packets to it(about 8Mbps) when kernel is
> starting up, the kernel failed start up and printf the following
> messages:

This is just a VERY wild guess: check the driver source
(arch/ppc/8xx_io/fec.c in your case) and make sure the driver only forwards
received packets to the IP stack when the interface is configured "UP".
There once was a similar problem with the 826x driver.

Another reason could be that the FEC channel is not properly shut down by
the firmware/bootloader before entering the kernel.

Next time try to add more information about your system, especially about
the kernel and bootloader version you are using.


Marius Groeger <mgroeger at sysgo.com>           Project Manager
SYSGO AG                      Embedded and Real-Time Software
Voice: +49 6136 9948 0                  FAX: +49 6136 9948 10
www.sysgo.com | www.elinos.com | www.osek.de | www.imerva.com

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