Messages in this thread | | | Date | Sun, 23 Dec 2007 07:06:58 +1030 | From | David Newall <> | Subject | Re: Testing RAM from userspace / question about memmap= arguments |
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Pavel Machek wrote: > memtest has following problems: > > 0) it is kind of hard to run memtest over ssh >
It's kind of hard to run anything over SSH if it has to be run before userspace is up. But the kernel can collect results from a modified memtest, after it chains back.
> 1) if linux fixes some problem with PCI quirk or microcode > upload, memtest will not see the fix >
What are you saying? Linux is going to fix faulty RAM? The point with testing RAM is you *want* to see it fail; you don't want Linux to fix it.
> 2) if memory only fails while something else happens (DMA to > other piece of memory? Hard disk load glitching powre > supply?), memtest will not see the problem.
These are not RAM faults. The very last thing you want is evidence that you've got a faulty piece of RAM when the fault is actually a hard disk glitch!
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