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    SubjectRe: Problem with ioremap which returns NULL in 2.6 kernel
    On Wed, 2 Jun 2004, Markus Lidel wrote:

    > Zwane Mwaikambo wrote:
    > >>>probably too large an area to be remapping. Try remapping only the
    > >>>memory area needed, and not the entire area.
    > >>Is there a way, to increase the size, which could be remapped, or is
    > >>there a way, to find out what is the maximum size which could be remapped?
    > >>Thank you very much for the fast answer!
    > > You could try a 4G/4G enabled kernel, /proc/meminfo tells you how much
    > > vmalloc (ioremap) space there is too.
    >
    > VmallocTotal: 245752 kB
    > VmallocUsed: 137720 kB
    > VmallocChunk: 107904 kB
    >
    > Okay, i see the problem now, the largest piece of memory which could be
    > allocated is 107904 kB, right?
    >
    > Is the 4G/4G split already in the kernel? If yes, which entry activates it?

    'fraid not, you'll have to either patch a kernel or use Arjan's
    i686 kernels at http://people.redhat.com/arjanv/2.6/RPMS.kernel/
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