Re: [crash] Re: Latest brk patchset

[H. Peter Anvin]

Jeremy Fitzhardinge wrote:
> Yinghai Lu wrote:
> > > -INIT_MAP_SIZE = (PAGE_TABLE_SIZE + ALLOCATOR_SLOP) * PAGE_SIZE_asm
> > > -RESERVE_BRK(pagetables, INIT_MAP_SIZE)
> > > +/* Enough space to fit pagetables for the low memory linear map */
> > > +MAPPING_BEYOND_END = (PAGE_TABLE_SIZE(1 << (32 - PAGE_SHIFT)) * 
> > > PAGE_SIZE)
> > >     
> >
> > that is for 4g?
> >   
>
> Yes, I suppose it only needs to be 1G.  But it doesn't make much 
> difference in practice.

A tighter bound would probably be nice, if nothing else because tighter 
bounds tend to catch more bugs.

	-hpa

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