Re: GPMI NAND crashes with UBIFS

[Artem Bityutskiy <dedekind1@gmail.com>]

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On Wed, 2012-10-17 at 15:28 -0300, Ezequiel Garcia wrote:
> On Wed, Oct 17, 2012 at 10:21 AM, Artem Bityutskiy <dedekind1@gmail.com> wrote:
> > On Wed, 2012-10-17 at 15:16 +0200, Marek Vasut wrote:
> >> Ok, I'll re-check. Though I suspect this problem disappeared with the
> >> recently
> >> applied UBI patches.
> >
> > No, you ask UBIFS to emulate a power cut, so it switched to R/O mode at
> > a random point. It printed scary error messages, which are normal
> > because an I/O operation failed. Then integck reported you the error and
> > stopped.
> >
> > All expected.
> >
> > If you use -p integck option you will just make integck _not_ fail when
> > the file-system suddenly becomes R/O, integck will just unmount it,
> > mount back, remove all its data, and start over. Then you'll get another
> > emulated power cut, and so on.
> >
> > Ideally this should never stop. The idea is to test that UBIFS can mount
> > the file-system in case of a power cut.
> >
> > If there is a problem, integck should die.
> >
> > To just stress-test your driver you do not need power-cut emulation.
> >
> 
> Is this expected behavior documented somewhere?

Sorry, no. I do not mind if someone sends a patch for mtd-www.git with
some docs WRT power-cut emulation stuff.

-- 
Best Regards,
Artem Bityutskiy

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