Max size of buffer shared between kernel and user application?

From: tbeg
Date: Thu Apr 01 2004 - 13:02:49 EST


What is the maximum size of a memory region mapped with a ioremap().
I 'm writing a driver that will share a buffer with an application
mapping the same phys mem region using ioremap() in kernel and
mmap(/dev/mem) in the application. I'm using a Linux 2.4.18 on a HP
server with 4GB RAM.

Tomek

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