2013/1/18 Justin M. Forbes <jmforbes@xxxxxxxxxxx>
On Thu, Jan 17, 2013 at 09:18:40AM -0800, Chuck Forsberg WA7KGX N2469R wrote:There are a lof of reasons that this isn't feasible on a running system.
> Recently I discovered the motherboard that had been running omen.com
> had an undetected bad memory chip. This is a real confidence builder.
>
> Currently, running a definitive memory test requires hours of down time.
> The user mode memory tester has serious limitations.
>
> I propose kernel support for a user mode program similar to memtest86
> to allow such a program to request a hardware block of memory and
> relocate whatever was in that block to another memory area. This way
> all of the memory can be checked in the background of a running system.
>
You just don't have access to all of the memory for a full check.
Justin
why not? is there something that can not be relocated in RAM?
on the other hand, wasn't there supposed to be a way to exclude a damaged RAM area by passing some arguments to the kernel?
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