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    SubjectRe: Value of TASK_UNMAPPED_SIZE on 2.4
    Andrea Arcangeli <> writes:

    > On Fri, Nov 03, 2000 at 11:15:46AM -0800, Josue Emmanuel Amaro wrote:
    > > (page.h). This works out to be a value of 0x4000000.
    > ^ one more zero here
    > > Are there any negative side effects in defining TASK_UNMAPPED_SIZE to 0x1000000?
    > I guess you mean 0x10000000. There's no risk in doing that. I also did another
    > patch that moves the kernel away and allows 3.5G per process on IA32 via plain
    > mmap or shmat, but it has the downside of reducing a lot the ZONE_NORMAL where
    > on IA32 buffercache and skb still lives.

    Is this available as a patch, or preferably as a compilation option to
    the standard kernel?

    The ASIC tools that we use wants all the memory they can grab, and the
    extra few hundred megs can sometimes be _very_ critical. On Solaris,
    Synopsys' Design Compiler can allocate 3.8Gig and we've hit that limit
    hard when working with toplevel netlists and SDF databases.

    Thanks in advance,

    Kai Harrekilde-Petersen
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