Dear Dave,
in message 20040412213638.57633.qmail@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