No subject

ethernet dirver.

If I do a ping, all netRxPackets are inited to proper
values, and everything works fine.

Thanks
Dave.
 
--- Wolfgang Denk <wd at denx.de> wrote:
> Dear Dave,
> 
> in message
> <20040412213638.57633.qmail at web21412.mail.yahoo.com>
> you wrote:
> >
> > I have 8260 based board and am using u-boot for
> that.
> > I boot kernel from the flash. All works fine
> however
> > sometimes Linux Kernel does not boot after
> > uncompressing, further investigation found that as
> the
> > kernel entry point is address 0, and that is also
> > address of netRxPackets, if a packet is received
> after
> 
> You are wrong here.  NetRxPackets[]  is  definitely 
> NOT  located  at
> address 0.
> 
> > the kernel is unzipped by u-boot, ethernet driver
> > corrupts data at address 0 thinking it as its
> buffer
> > pointer. Hence kernel does not boot up in that
> case.
> 
> No, no, no.
> 
> > My first question is that why we dont initialize
> > netRxPackets in net.c?? (these are only
> initialized
> > once a network related operation (like ping) is
> done).
> 
> U-Boot uses the network only when a network related
> operation  is  in
> progress, so why should we waste memory for buffers
> when they are not
> needed?
> 
> > Is this the  corect behaviour?? has anyone
> observed
> > this problem??
> 
> This is correct behaviour. It works perfectly find
> on  all  boards  I
> was able to test.
> 
> You are on the wrong track.
> 
> Best regards,
> 
> Wolfgang Denk
> 
> -- 
> Software Engineering:  Embedded and Realtime
> Systems,  Embedded Linux
> Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88 
> Email: wd at denx.de
> You got to learn three things. What's  real,  what's
>  not  real,  and
> what's the difference."           - Terry Pratchett,
> _Witches Abroad_
> 
> 
>
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