In message <[EMAIL PROTECTED]>, Bruce Evans writes:
>> The solution is to re-engineer the way that I/O buffers pass through
>> the kernel and only assign KVA when needed (for doing software parity
>> calculations, for example).
>
>How would it yield anything except complexity and negative performa
On Sun, 8 May 2005, Scott Long wrote:
Changing MAXPHYS is very dangerous, unfortunately. The root of the
problem is that kernel virtual memory (KVA) gets assigned to each I/O
buffer as it passes through the kernel. If we allow too much I/O through
at once then we have the very real possibility of
