Re: NMI errors in 2.0.30??u

Alan Cox (
Sun, 27 Apr 1997 16:01:33 +0100 (BST)

> This test detects the simplest type of errors, and not much more.
> This test does not find all coupling errors that you describe.
> A more sofisticated test like marchg finds all errors, upto all the
> single coupling errors that may exist.

Only if you blindly assume everything else is within spec. You should
do continual heavy DMA during all your testing. Lots of memory errors
don't show up except during DMA accesses where the cache is much
more stressed.