[lkml]   [2008]   [Mar]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [PATCH] x86_64: early memtest to find bad ram

    On Mar 21 2008 13:03, Ingo Molnar wrote:
    > * Yinghai Lu <> wrote:
    >> do simple memtest after init_memory_mapping
    >> use find_e820_area_size to find all ram range that is not reserved.
    >> and do some simple bits test to find some bad ram.
    >> if find some bad ram, use reserve_early to exclude that range.
    > 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]

    Perhaps this can even be used to provide on-the-fly badram
    patch semantics?

     \ /
      Last update: 2008-03-21 22:25    [W:0.029 / U:1.728 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site