We tested with single processor, unfortunately same error.
The only method we found to write error free is using not the regular "cp" command. When using "dd" with a block size of 4096 it works just fine, and we still get 2.5 MByte/s true write speed. I think we override the CF card. Slowing down the write process just a little helps to keep the errors away.
Thanks for all the help. At the moment I think we have to live with that solution. Alan Stern wrote: [...]
Can you tell Linux to use only one processor with no hyperthreading (maybe build a UP kernel) for purposes of testing?
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