Re: [PATCH] x86_64: early memtest to find bad ram

[Ingo Molnar]

* H. Peter Anvin <hpa@xxxxxxxxx> 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.

some do (Fedora for example), but it's still a bit quirky for users to 
invoke and it would be nice to see those results in the kernel log as 
well and flag possibly flaky systems that way. (add a taint bit, etc., 
etc.)

	Ingo
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