> Was the number of arguments (5) to lseek correct in the
> sysent table?

Yes, apparently this is so that syscall() will copy 5 longwords into
the kernel.  You'd think it would need to be 4 longwords, but some
processors require doublewords to be doubleword-aligned.  Hence there
will be a padding longword between the 1st and 2nd arguements.

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