From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <408CC769.2050107@intracom.gr> Date: Mon, 26 Apr 2004 11:25:13 +0300 From: Pantelis Antoniou MIME-Version: 1.0 To: Marius Groeger Cc: jeffy , "linuxppc-embedded@lists.linuxppc" Subject: Re: PPC Linux painic problem! References: <200404260127.UAA32565@lists.linuxppc.org> In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: Marius Groeger wrote: >Jeffy, > >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. > >Regards, >Marius > >-- >Marius Groeger 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 > > > > > > If you use u-boot make sure you update to the latest version. There was a bug with the fec not properly halting and then crashing the kernel when network traffic was present very early. Regards Pantelis ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/