Can't mmap the top 1MB of /dev/mem?

Pavel Roskin proski at
Fri Jun 23 05:37:16 EST 2000

Hello, Mark!

> If it _were_ extremely  important I could always trace the mmap system
> call.

I already know that it happens in do_mmap(), at this point:

/* offset overflow? */
if (off + len < off)
        return -EINVAL;

I'm puzzled why it doesn't happen on G3.

> _That's_ why Linux is so cool.



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