On 1/6/06, jp <jaypee@xxxxxxxxxx> wrote: > On Fri, 2006-01-06 at 14:40 +0800, zhuzhenhua wrote: > > i make a ramdisk by myself, and sometimes the kernel boot the ramdisk > > correctly but sometimes it printk "crc error" while uncompressed > > ramdisk, did someone meet this situation? > > thanks for any hints > > > > Assuming your build and everything else is as it should be it may be a > RAM fault. Are you using a custom board? > > I had some prototype boards here with some really long tracks to RAM. > (and some really short ones too!) > > Memory tests such walking ones worked fine but the decompress of the > ramdisk works RAM pretty hard and it showed up intermittent faults like > you describe. Tended to be worse when the board was warm. I'd spray some > Freezit on and it would go back to working OK. > > You could also try running the RAM slower and see if the fault > disappears. > > > JP > > > maybe you are right, because i work on our FPGA board, and the situation is similiar as your description. i will try to slow down the sdram and to see what will happen thanks! Best regards zhuzhenhua
