RE: [discuss] [Patch] X86_64 TASK_SIZE cleanup

[Zou, Nanhai]

When a 32bit program is mapping a lot of hugepage vm_areas, 
hugetlb_get_unmapped_area may search beyond 4G, then the program will
get a SIGFAULT instead of an errno of ENOMEM.
This patch will fix that.
I believe there are other inconsistent cases in generic code like mm and
fs.

Zou Nan hai

> -----Original Message-----
> From: Andi Kleen [mailto:ak@xxxxxxx]
> Sent: Monday, April 18, 2005 5:06 PM
> To: Zou, Nanhai
> Cc: discuss@xxxxxxxxxx; Andi Kleen; linux-kernel@xxxxxxxxxxxxxxx;
Siddha,
> Suresh B
> Subject: Re: [discuss] [Patch] X86_64 TASK_SIZE cleanup
> 
> On Sat, Apr 16, 2005 at 09:34:25AM +0800, Zou, Nanhai wrote:
> >
> > Hi,
> >    This patch will clean up the X86_64 compatibility mode TASK_SIZE
> > define thus fix some bugs found in X86_64 compatibility mode
program.
> 
> Fix what bugs exactly?  Please a detailed description.
> 
> -Andi
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