Hi Alred and Aaron, Alfred Grünewald wrote: > I was listening your last weeks conversation and I also tested Johns > image.bin on my Memec Board DS-BD-V2MB1000 Rev. 3A and had exactly the same > result Aaron described. Interesting >>Which mbvanilla platform are you building? Have you changed anything at >>all - address map, MHS parameters, UCF file, ... > > No change at all. I used MBvanilla 6.1b from 2004 03 15. > >>What are your exact ISE and EDK version numbers (including service packs >>etc) > > ISE 6.103i (Service pack 3) EDK 6.1.2 (Service Pack2) > >>Any unusual jumper settings? All IO banks should be at 3.3V > > Verified, all correct > >>I'm rebuilding a clean mbvanilla_net bitfile, I'll post it to the list >>when it's done. Can you try that on your board, see if it will work >>with the kernel image I sent yesterday? > > > I will do. The gzip compressed bitfile is attached. I built it in xmdstub mode, let me know if you'd prefer it in executable. > Some thougths to the problem: > > 1. If its a hardware problem, it must be either in the ethernet part or in > the extension of the DDR memory to 32 MB, because on my board mbvanilla_ddr > is running very stable without any problem. OK > And isen't it unlikely that Aaron's and my board have the same failure? Yes, but it's also strange that I've never seen or heard reported this problem. The particular error message you guys are seeing is generated in binfmt_flat.c, where the kernel loads and relocates the flat format executables. But I think that is just probably a symptom, rather than the cause. > 2. There must be also a difference in the images, because Johns image is > running much further(crashes later) than my or Aarons. > > 3. In the bootlog I see now BogoMIPS of 33, which is factor 10 more than I > had with mbvanilla_ddr, is this correct? That points at differences in cache setup - If I remember rightly, stock mbvanilla_ddr has caches disabled (giving about 3.3 bogomips at 66mhz clock), while caches are enabled in the mbvanilla_net, yielding about 33 bogomips. I'll look into it a bit further - meanwhile please try the bitfile, let me know what you find. Cheers, John
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