mtd-utils io_paral test fails on NAND

Otto Blom oblom586 at gmail.com
Mon Nov 25 09:22:10 PST 2019


Hi Richard !

Interestingly I had flash_readtest running in a loop the whole weekend
without any errors. Although this test does not verify the data read
so it could point towards a controller / driver problem. I'm in the
process of upgrading the SDK from 2017.3 to 2019.2 to see if that
makes any difference

Thanks,

/Otto

On Fri, Nov 22, 2019 at 1:53 AM Richard Weinberger
<richard.weinberger at gmail.com> wrote:
>
> On Thu, Nov 21, 2019 at 8:54 PM Otto Blom <oblom586 at gmail.com> wrote:
> >
> > Hello All !
> >
> > A couple of updates on this problem. Turns out io_read also fails in
> > the same way as io_paral - A page of data comes back as all zeros.
> > Interestingly I added a retry option to see if it is a read or write
> > problem and turns out every single time so far the data is correct
> > when I read it a second time.
> >
> > In summary when I run runubitests.sh it passes about 70% of the time,
> > io_paral fails 25% and io_read the remaining 5%
> >
> > Any recommendations on what to try next ?
>
> Test one layer deeper. e.g. flash_readtest.
>
> --
> Thanks,
> //richard



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