I'm considering using HugeTLBFS - I'm just wondering if anyone has implemented it before, and what your experience was.
And, as an additional question - has anyone ported it and used it under 32-bit linux?
HugeTLB is supported on recent 32-bit mpc85xx/QorIQ kernels, as long as you have large physical address support enabled.
Thanks - what about without large phys address (i.e. only 32-bit addressing). My understanding is that the MMU code is different and unsupported. Anyone ever try it or back-port it to a strictly 32-bit machine?
It is not supported if large physical address support is turned off. There should be no problem enabling large physical address support on any mpc85xx/QorIQ chip, even if the chip doesn't support 36-bit physical. It's about Linux's internal data structures, not the hardware.
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