lkml.org 
[lkml]   [2008]   [Mar]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] x86_64: early memtest to find bad ram
Yinghai Lu wrote:
> On Fri, Mar 21, 2008 at 6:08 AM, H. Peter Anvin <hpa@zytor.com> wrote:
>> Ingo Molnar wrote:
>> >
>> > very nice patch! I always thought that this was the proper way to do
>> > memtest - and we could in fact also do something like this after SMP
>> > bringup, and hit the memory bus via multiple CPUs. [that will need a
>> > different enumeration though than e820 maps]
>> >
>> > one structural observation: please make this unified functionality, so
>> > that 32-bit kernels can make use of it too.
>> >
>>
>> Indeed. Of course, it would also be nice if distros shipped
>> bootloader-invoked prekernel test software, like memtest86+, by default.
>
> the current memtest86 is running in 32 bit mode, and only support 64G ram.
>
> I tried to expand that a bit, to support 1024g, but it only works on
> some machine.
> could be stack provide is not big enough?
>

Wonder how hard it would be to make it run 64 bits...

-hpa


\
 
 \ /
  Last update: 2008-03-21 21:01    [W:0.070 / U:0.548 seconds]
©2003-2014 Jasper Spaans. Advertise on this site