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



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.

-hpa
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/



Relevant Pages

  • Re: [PATCH] x86_64: early memtest to find bad ram
    ... memtest - and we could in fact also do something like this after SMP ... and hit the memory bus via multiple CPUs. ... invoke and it would be nice to see those results in the kernel log as ...
    (Linux-Kernel)
  • Re: memtest
    ... > check with memtest. ... But he told me I had and that it was on my Ubuntu ... it offers the default kernel (which it would have used had I not hit ESC), ...
    (Ubuntu)
  • Re: 2.4.22-pre lockups (now decoded oops for pre10)
    ... >> It is unlikely for bad ram to survive memtest for several hours. ... Are you saying that one CPU can't saturate the memory bus? ... send the line "unsubscribe linux-kernel" in ...
    (Linux-Kernel)
  • Re: Vista Ultimate BSOD seeking advice
    ... How long did you let the Memtest Run. ... I would also run the Windows Memory Diag test... ... hit "t" key once it ... starts to run advanced tests. ...
    (microsoft.public.windows.vista.general)
  • [Memtest86] error found
    ... Had the opportunity to memtest a box that usually runs continuously. ... As one error was thrown up, I memtested the thing again for 24 hours ... The usual swap use is around 50-100MB. ... I had to hit him, he was beginning to make sense. ...
    (comp.os.linux.hardware)