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Re: big usermem kernel patch



On Thursday 19 May 2005 12:26, Camm Maguire <camm@enhanced.com> wrote:
> Greetings!  It seems that we are in need of a 'big usermem' kernel
> patch in Debian, so I am considering contributing such a package.  It
> appears there are two approaches on the net, both in various
> incarnations of redhat:
>
> 1) user-tunable /proc/self/mapped_base -- this allows setuid processes
>    to move the base address at which shared libs are mapped from the
>    default (on x86) of 0x40000000, allowing for much larger contiguous
>    brk *or* mmaped space (up to 2.7 GB -- the oracle docs appear to
>    refer to this.  See also WOLK).

What about the 4/4 kernel patch?  That should allow something > 3.5G of 
address space to be mapped contiguously.

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