Dear Peter Pan,
please don't top-post / full quote. And make sure never to post HTML again!
In message 48abf2c20911292253q4850af1dy1767fdd9e3456533@mail.gmail.com you wrote:
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I assumed that the stack does not support "loff_t", so I search for its definition. In /include/asm-ppc/posix_types.h has a definition for "__kernel_loff_t" which is type defined to "loff_t" in /include/linux/types.h. I change this "__kernel)loff_t" from "long long" to "unsigned long". And the Function gets the same parameters caller gives.
Maybe ppc stack here does not support long long?
This phrase does not make any sense to me. "The stack" is something that is organized internally by the compiler, and if the compiler supports "long long", then it does so everywhere, including on the stack.
You claim "I'm using U-Boot-2009-08", but I understand that your port is still out of tree, and nobody but you has access to it. As it appears to be working fine for everyone else, I suspect that the problems are in your own board code / initialization / configuration.
Best regards,
Wolfgang Denk