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Subject: Re: sbrk(2) broken
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> Also, may I humbly inject a user centric view here - it is pretty annoying to
> be limited to 500 MB of mallocable memory on 32 bit machines when you expect
> 3 GB to be usable (with 1 GB mapped to the kernel).

amen.  :-(   Has anyone tried upgrading a system from i386 to amd_64 
with any success?  maxdsize tweaks and reboots are disappointing at best.